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General Information on Packed Columns


Packing Materials for Shodex Columns

Separation type
Products
Base material
Functional group
Reversed & Normal
phase
(Polymer-based)
Asahipak ODP-50
ODP-40
Polyvinyl alcohol Octadecyl
Asahipak C8P-50 Polyvinyl alcohol Octyl
Asahipak C4P-50 Polyvinyl alcohol Butyl
  ODP2 HP Polyhydroxymethacrylate -
RSpak RP18 Styrene divinylbenzene copolymer -
RSpak DS Styrene divinylbenzene copolymer -
RSpak DE Polymethacrylate -
RSpak GOLF-413
CARB
Polymethacrylate -
RSpak DM-413 Polyhydroxymethacrylate -
RSpak NN Polyhydroxymethacrylate Sulfo
RSpak JJ-50 Polyvinyl alcohol Quaternary ammonium
Asahipak NH2P-50 Polyvinyl alcohol Polyamino
RSpak DC-613 Styrene divinylbenzene copolymer Sulfo(Na+)
Reversed & Normal
phase
(Silica-based)
ODSpak F Silica Octadecyl
Silica C18M
C18P
Silica Octadecyl
Silicapak E-411 Silica -
Silica 5SIL Silica -
Silica 5C8 Silica Octyl
Silica 5C4 Silica Butyl
Silica 5TMS Silica Trimethylsilyl
Silica 5CN Silica Cyanopropyl
Silica 5NH Silica Aminopropyl
Silica   Silica Nitrophenylethyl
Silica 5NPYE Silica Pyrenylethyl
Cation-exchange IEC SP-825 Polyhydroxymethacrylate Sulfopropyl
IEC SP-420N Polyhydroxymethacrylate Sulfopropyl
IEC CM-825 Polyhydroxymethacrylate Carboxymethyl
Asahipak ES-502C Polyvinyl alcohol Carboxymethyl
Anion-exchange IEC QA-825 Polyhydroxymethacrylate Quaternary ammonium
IEC DEAE-825 Polyhydroxymethacrylate Diethylaminoethyl
IEC DEAE3N Polyhydroxymethacrylate Diethylaminoethyl
Asahipak ES-502N Polyvinyl alcohol Diethylaminoethyl
AXpak WA-624 Polyhydroxymethacrylate Diethylaminoethyl
Hydrophobic
HIC PH-814 Polyhydroxymethacrylate Phenyl
Ion chromatography
(Cation Analysis)
IC YS-50 Polyvinyl alcohol Quaternary ammonium
IC YK-421 Silica Carboxyl
IC Y-521 Styrene divinylbenzene copolymer Sulfo
IC T-521
Styrene divinylbenzene copolymer Sulfo
IC R-621 Styrene divinylbenzene copolymer Sulfo
Ion chromatography
(Anion Analysis)
IC NI-424
Polyhydroxymethacrylate Quaternary ammonium
IC I-524A Polyhydroxymethacrylate Quaternary ammonium
IC SI Polyvinyl alcohol Quaternary ammonium
WINE VH-anion Polyvinyl alcohol Quaternary ammonium
Chiral separation ORpak CDA-453 HQ Polyhydroxymethacrylate alpha-Cyclodextrin
derivertive
ORpak CDB-453 HQ Polyhydroxymethacrylate beta-Cyclodextrin derivertive
ORpak CDC-453 HQ Polyhydroxymethacrylate gamma-Cyclodextrin derivertive
ORpak CDBS-453 Silica beta-Cyclodextrin derivertive
ORpak CRX-853 Polyhydroxymethacrylate L-Amino acid derivative
Analysis of
Saccharides
SUGAR SH Styrene divinylbenzene copolymer Sulfo
SUGAR SC Styrene divinylbenzene copolymer Sulfo(Ca2+)
SUGAR SP0810 Styrene divinylbenzene copolymer Sulfo(Pb2+)
SUGAR SZ5532 Styrene divinylbenzene copolymer Sulfo(Zn2+)
SUGAR KS-800 Styrene divinylbenzene copolymer Sulfo(Na+)
USPpak MN-431 Styrene divinylbenzene copolymer Sulfo(Ca2+)
EP SC1011-7F Styrene divinylbenzene copolymer Sulfo(Ca2+)
Analysisn of
Organic acids and
Amino acids
RSpak KC-811 Styrene divinylbenzene copolymer Sulfo
CXpak P-421S Styrene divinylbenzene copolymer Sulfo(Na+)
Aqueous SEC (GFC)   SB400 Polyhydroxymethacrylate -
OHpak SB-800 HQ Polyhydroxymethacrylate -
  KW400 Silica Hydrophilic polymer
PROTEIN KW-800 Silica Hydrophilic polymer
Multimode RSpak NN Polyvinyl alcohol Sulfo
RSpak JJ-50 Polyvinyl alcohol Quaternary ammonium
Asahipak GS-HQ Polyvinyl alcohol -
Asahipak GS Polyvinyl alcohol -
Aqueous/Organic SEC Asahipak GF-HQ Polyvinyl alcohol -
Organic SEC (GPC) GPC KF-800
KF-400HQ
KF-600
Styrene divinylbenzene copolymer -
GPC K-800 Styrene divinylbenzene copolymer -
GPC KD-800 Styrene divinylbenzene copolymer -
GPC LF-804
LF-404
LF-604
Styrene divinylbenzene copolymer -
GPC HFIP-800
HFIP-600
Styrene divinylbenzene copolymer -
GPC HT-800 Styrene divinylbenzene copolymer -
GPC UT-800 Styrene divinylbenzene copolymer -
GPC AT-806S Styrene divinylbenzene copolymer -
Affinity AFpak 32 kinds Polyhydroxymethacrylate 32 kinds of ligand
Column switching MSpak PK Hydrophilic copolymers containing
N-vinyl acetamide
-
MSpak GF-310
GS-320
Polyvinyl alcohol -
Asahipak ODP-51 Polyvinyl alcohol Octadecyl
MSpak SP-80 Polyhydroxymethacrylate Sulfopropyl
GPC clean-up CLNpak EV Styrene divinylbenzene copolymer -
CLNpak PAE Polyvinyl alcohol -

 

Guidelines for Shodex Column Selection

guidelines

General Care to Use Packed Columns

Contents :

  1. Name of column parts
  2. Installation and start-up
  3. Dismounting and safekeeping
  4. Use of guard column
  5. Sample pretreatment
  6. Eluent
  7. Column testing method
  8. Other remark
  9. Warranty

1. Name of column parts

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2. Installation and start-up

1) Prior to connection of the column to the liquid chromatograph, replace the solvent in the chromatograph with the solvent that is to be used as the eluent.

Caution: In replacing water with, for instance, chloroform, which is not soluble in water, first replace the water with acetone and then replace acetone with chloroform.
Caution: In replacing a solvent containing a salt with a solvent containing an organic solvent, use intermediate solvents, first water and next acetone, and, in replacing a solvent containing an organic solvent with a solvent containing a salt, first acetone and next water.
Caution: If the liquid chromatograph is equipped with a device in which complete replacement of the solvent is not possible, e.g., a Bourdon pressure gauge, disassemble the device and wash it with the solvent that is to be used as the eluent.

2) When a column is stored improperly or for a long time, there may be the air at the inlet or outlet of the column. In such case, prior to connection of the column to the liquid chromatograph, remove the air from the column.
Caution: Do not heat a column too rapidly or to the temperature higher than the maximum of the usable temperature.
Note: Remove the cap of column inlet, and heat the column (usually warming by hands is enough) until in-column solvent comes out from the inlet endfitting. Then, connect the column to the liquid chromatograph, remeve the cap of column outlet, start the pump and check that the in-column solvent comes out from the outlet endfitting. The air in the column can be completely eliminated by this procedure.

3) Connect the column to the chromatograph so that the arrow on the plate will face downstream.

4) When the column is used at elevated temperature, heat the column to the desired temperature flowing the eluent at slow flow rate (0.2 to 0.3mL/min) and after reaching desired temperature, gradually increase the flow rate to the flow rate to be used.

5) Some columns need time for stabilization, and, the first measurement after connecting it to the chromatograph may be not so good.

3. Dismounting and safekeeping

1) After completing analysis, keep pumping eluent into the column at a flow rate of 0.2mL/min until the column is cooled down to room temperature.

2) After the column is cooled down to room temperature, dissconnect the column from the chromatograph and cap both ends of the column to prevent the eluent from leaking out.
Caution: When the in-column solvent is different from the shipping-solvent from the manufacturer, replace the solvent before dismounting.
Caution: Cap both ends of the column tightly so that the in-column solvent may not leak out.
Note: The room temperature mentioned above means the temperature in the room where the column is stored.

3) Pack the column in the same way as when it was delivered from the manufacturer and store it in a room where the temperature fluctuates little (preferably, in a constant temperature room).

4) When GPC and GFC columns are stored for a long period of time, it is recommended to store in wet. Connect a Teflon tube of 1/16 inch in outside diameter, 0.8mm in inside diameter and 500mm in length to the column outlet.
Start pumping the eluent at a flow rate of 0.5mL/min and stop the pump as soon as it begins to flow out from the free end of the tube. Put 80mL of toluene or water into a 100mL bottle and soak the free end in the toluene or water to prevent air from entering the column. Dismount the column from the chromatograph, cap the column's inlet end and store it in a room where the temperature fluctuate little.

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The columns to be stored in wet and the solvents to be used are as follows:
(a) The columns to be soaked in toluene:
GPC KF, K, KD, AT, HT, UT and HFIP.
(b) The columns to be soaked in purified water (containing sodium azide).
OHpak SB-800 HQ and PRTEIN KW series.
Note: The solvent in the bottle should be replaced once a month with a fresh solvent to maintain the column performance as designated for a long period of time.

5) Stop the pump and leave the column on the chromatograph, if it is to be reused within three days.
Caution: In case of one or more days suspension of chromatograph in which a solvent containing salt was used as eluent, replace the eluent with purified water, setting the flow rate at 0.5mL/min.

4. Use of guard column

1) Install a guard column immediately upstream of the main column to protect it from cotamination by the sample.
Note: The guard column is intended to maintain the column performance as designated for a long period of time and not to improve its resolution.
2) Replace the gurad column at regular intervals. The intervals are different according to sample property and injection volume.

5. Sample pretreatment

1) Dissolve the sample in the solvent that is to be used as the eluent.
Note: When the eluent is not stable, dissolve the sample in the eluent taken just before the injection. This procedure is important to have a smaller blank peak when RI detector is used.
Caution: When using gradient elution, dissolve the sample in the starting eluent.
Caution: Do not inject samples which are insoluble in the eluent.

2) Remove extraneous substances and insolubles from the dissolved sample by passing it through a 0.45micron filter. Use of disposable filter is recommended.

3) The use of SPE filter is also useful to remove the extraneous substances in the sample.

6. Eluent

1) Remove extraneous substances and insolubles from the eluent by passing it through a 0.45micron filter. Use of disposable filter is recommended.

2) Throughly degass the eluent. Apply ultrasonic vivration and degas decreasing the pressure using aspirator. When degassing of the eluent is insufficient, stable baseline cannot be obtained. Degassing is especially important when RI detector is used for the detection.
The use of Degasser (eluent degassing device), ERC-3000-alpha is recommended.
Caution: The degassing is important when the column is used at elevated temperature to prevent air bubble at inside and outlet of the column.

7. Column testing method

The plate number in the inspection sheet attached to the column was calculated by the following formula:

wrr

The testing conditions to obtain the plate number is shown in Column Testing Conditions.
The chart speed should be 1.5 to 2.0 cm/min. The sensitivity of the detector should be adjusted to obtain peak height of about 10cm.

8. Other remark

Caution: Do not make an impact on the column because the packing condition in the column may be disturbed the the impact. For example, do not drop a column from a high place.
Caution: Do not bend the column or cause impact on it.
Caution: Under no circumstances should the end-fittings of the column be removed as doing so will cause deterioration of the column performance.
Caution: Do not change the column pressure or flow rate abruptly when a liquid chromatograoh is in use. Use a damper-equipped or pulseless pump to maintain the performance of the column at the designated level for a long period of time.
Caution: Do not apply the pressure heigher than 20MPa, or the column material of stainless steel may be dtsfigured.

9. Warranty

1) Showa Denko shall replace any Shodex column,
(a) If found damaged at the time of delivery.
(b) If the plate number obtained by the purchaser as per the operation manual is significantly smaller than the one given in the inspection sheet attached to the column. Claims must be filed with Showa Denko within 10 days following delivery.

2) The following shall not be subject to warranty.
(a) Service life
(b) Deterioration of column performance resulting from improper handling.

Column Cleaning Procedure

When a column is deteriorated by the foreign substances remaining in the column or adsorbed by the packing material, the substances might be washed out by the procedure described below. However, sometimes the procedure is not suffcient to regenarate the column and, in such case, it is necessary to replace the column with a new one. And, even if the column can be regenarated, the column performance may be not so good as before. After cleaning the column, be sure to replace the in-column solvent to the normal solvent. The use of a guard column at the up-stream of the main column is recommended to prevent the main column from the deterioration by the foreign substances. When a guard column is used, first, the guard column will be deteriorated by the foreign substances and it is possible to prevent the main column from the deterioration by replacing the guard column regularly.
When cleaning a guard column, be sure to disconnect the main column before the cleaning. If a guard column and a main column are connected in series and the cleaning procedure is performed, foreign substances in the guard column may move to the main column and, as the consequence, the main column may be deteriorated.

Category Column name Coulmn cleaning procedure
Normal &
Reversed Phase
(Polymer- based)
Asahipak NH2P Reverse the column on chromatograph and flow 5mL of H2O, 60mL of 0.1M HClO4 aq., 5mL of H2O, 60mL of 0.1M NaOH aqueous solution and then 5mL of H2O at the flow rate of 0.5mL/min.
Asahipak ODP
C8P, C4P
Flow 50mL of dioxiane, CH3CN or methanol.
RSpak RP18, DS
RSpak DE, GOLF
CARB
RSpak DM Flow 50mL of methanol, CH3CN or H2O.
RSpak DC Flow 50mL of CH3CN, or 5mM NaOH aqueous solution. Or, inject 20 to 50 micro-L of 0.5M NaOH aqueous solution.
RSpak NN Inject 20 to 50 micro-L of 2N nitric acid aqueous solution two or three times.
Normal &
Reversed Phase
(Silica- based)
ODSpak F Flow 50mL of dioxiane, THF, CH3CN or methanol.
Silica C18M, C18P
Silicapak E Flow 50mL each of n-hexane, dichloroehtane, methanol, dichloroethane and n-hexane.
SIlica 5SIL
Silica 5C8, 5C4
5TMS, 5CN
Flow 50mL of dioxane, CH3CN or methanol.
Silica 5NH There is no appropriate washing method.
Silica 5NPE
Silica 5PYE
Ion excahnge AXpak WA Inject 1 to 2 mL of 0.1M NaOH aqueous solution or 30% acetic acid aqueous solution. Connect the column in the reverse way and flow the eluent at 0.5mL/min.
CXpak P
IEC QA, DEAE
SP, CM
IEC DEAE-420N
SP-420N
Inject 500 micro-L of 0.1M NaOH aqueous solution, 50% formic acid aqueous solution, 20% CH3CN aqueous solution or 20% dimethyl sulfoxide aqueous solution several times. Flow the eluent at 0.3 to 0.5mL/min.
Asahipak ES-502N Flow aqueous solution of high salt concentartion or 10mM NaOH aqueous solution for ionic adsorption and 50mM buffer solution containing 50% CH3CN or methanol for hydrophobic adsorption.
Asahipak ES-502C Flow aqueous solution of high salt concentartion or 0.1N acetic acid aqueous solution for ionic adsorption and 50mM buffer solution containing 50% CH3CN aqueous solution or methanol for hydrophobic adsorption.
Hydrophobic
chromato graphy
HIC PH Reverse the column on the HPLC system, flow the eluent at 0.5mL/min and inject 1 to 2 mL of 0.1M NaOH or 30% acetic acid aqueous solution several times.
Affinity
chromato graphy
AFpak 31 kinds Reverse the column on the HPLC system, flow an appropriate eluent at 0.5mL/min.
Sugar analysis SUGAR SH Flow 50mL of 25mM H2SO4 aqueous solution at 50deg-C, 0.5mL/min.
SUGAR SC ( for SC1011, 1821)
Flow 50mL of 0.1M Ca(NO3)2 aqueous solution at 50deg-C, 0.5mL/min.
(for SC1211)
After replacing in-column solvent completely with H2O, flow 30mL of 0.1M Ca(NO3)2 aqueous solution at 50deg-C, 0.5mL/min. Then, replace the in-column solvent completely with H2O and gradually increase the organic solvent concentration to the concentration to be used.
SUGAR SP Flow 50mL of 0.2M Pb(NO3)2 at 50deg-C, 0.5mL/min.
SUGAR SZ After replacing in-column solvent completely with H2O, flow 30mL of 0.1M Zn(NO3)2 aqueous solution at 50deg-C, 0.5mL/min. Then, replace the in-column solvent completely with H2O and gradually increase the organic solvent concentration to the concentration to be used.
SUGAR KS Flow 10mM NaOH aqueous solution at 0.5mL/min. After flowing the solvent, replace the in-column solvent completely with H2O. (Sometimes, injection of 40micro-L of 0.1M NaOH aqueous solution is will be sufficient.)
USPpak MN Flow 50mL of 0.1M Ca(NO3)2 aqueous solution at 50deg-C, 0.5mL/min.
Organic acid
analysis
RSpak KC flow 50mL of 25mM H2SO4 aqueous solution at 50deg-C, 0.5mL/min.
Chiral separation ORpak CDA, CDB
CDC
There is no appropreate cleaning method.
ORpak CDBS, CRX There is no appropreate cleaning method.
GFC
(aqueous GPC)
OHpak SB Reverse the column on the HPLC system, flow the eluent at 80% of ordinary flow rate. This is effective for the foreign substances remaining in the column, however not effective for the substances adsorbed to the packing material.
PROTEIN KW-800
  KW400-4F
Multimode Asahipak GS
Multisolvent GPC Asahipak GF
Organic GPC GPC KF, K, KD, LF
HFIP, HT
UT, AT
Ion
chromato graphy
IC I-524A --Pollution by accumulation of metals--
30minutes: 0.01M tartaric acid (pH3 to 4, adjust with 0.1M NaOH), 1.0mL/min
--Pollution by proteins--
150 minutes: 20% acetic acid aq., 0.2mL/min
150 minutes: water, 0.2mL/min
--Pollution by organics--
150 minutes: 20% acetonitrile/water, 0.2mL/min
150 minutes: water, 0.2mL/min
IC NI-424 Flow the mixture of eluent/methanol=90/10 at 0.6mL/min for two hours.
IC SI-90 --Pollution by low valency hydrophilic ions--
1. 15 minutes: deionized water
2. 60 minutes: 10 times concentrated eluent
3. 15 minutes: deionized water
4. 60 minutes: eluent
--Pollution by high valency hydrophobic ions--
1. 15 minutes : deionized water
2. 10 minutes: 5% acetonitrile aqueous solution
3. 60 minutes: 100% acetonitrile
4. 30 minutes: deionized water
5. 60 minutes: eluent
IC SI-50 --Pollution by low valency hydrophilic ions--
(flow rate 0.3mL/min)
1. 25 minutes : deionized water
2. 100 minutes : 10 times concentrated eluent
3. 25 minutes : deionized water
4. 100 minutes : eluent
--Pollution by high valency hydrophobic ions--
(flow rate 0.3mL/min)
1. 25 minutes : deionized water
2. 20 minutes : 5% acetonitrile aqueous solution
3. 100 minutes : 100% acetonitrile
4. 50 minutes : deionized water
5. 100 minutes : eluent
IC T Flow 1M NaOH aqueous solution at 0.5mL/min for two hours.
IC R
IC Y Inject 100micro-L of 1M HNO3 aqueous solution several times.
IC YK Flow 50mL of 50mM tartaric acid aqueous solution or 50mM tartaric acid aqueous solution/CH3CN=50/50 at 0.3mL/min.
LC/MS,
rapid analysis
of medicines
Asahipak ODP Flow 50mL of dioxane, CH3CN or ethanol.
MSpak GF, GS Reverse the column on the HPLC system, flow the eluent at 80% of ordinary flow rate. This is effective for the foreign substances remaining in the column, however not effective for the substances adsorbed to the packing material.
MSpak SP Flow the eluent at 0.3 to 0.5mL/min and inject 500micro-L of 0.1M NaOH aqueous solution, 50% formic acid aqueous solution, 20% CH3CN aqueous solution or 20% dimethylsulfoxide aqueous solution several times.
GPC clean-up CLNpak EV Reverse the column on the HPLC system, flow the eluent at 80% of ordinary flow rate. This is effective for the foreign substances remaining in the column, however not effective for the substances adsorbed to the packing material.

Column Test Conditions

To check the deterioration of column performance, measure the column plate number and compare it with the number written in the inspection data sheet which is attached to the column. The test conditions for calculation of the plate number is determined for each column type and shown in the table below.
When you first use a column, we recommend you to measure its plate number before use. Plate number (N) can be caluculated by the formula in the right figure.
For the columns whose test conditions are shown with blue letters, the column performance should be measured by resolution, and not plate number.

fsf

Category Column type Test conditions
(1)Sample (2)Injection volume (3)Eluent (4)Flow rate (5)Temperature (6)Detector
Normal &
reversed
phase
(Polymer-
based)
Asahipak ODP
C8P,C4P
(1)0.75micro-L/mL n-Hexyl benzoate (2) 6micro-L(ODP), 10micro-L(C8P,C4P) (3) CH3CN/H2O=65/35 (4)0.6mL/min (5)30deg-C (6)UV(254nm)
Asahipak NH2P (1)5mg/mL Sucrose (2)5micro-L(4E, 4D), 2micro-L(2D)(3) CH3CN/H2O=75/25 (4)0.6mL/min(4D), 1.0mL/min(4E), 0.2mL/min(2D) (5)30deg-C (6)RI
RSpak RP18-415 (1)1% Acetone (2)3micro-L (3) CH3CN/H2O=95/5 (4)1.0mL/min (5)RT(25deg-C) (6)UV(254nm)
RSpak RP18-613
RP18-413
DS-413
(1)1% 3-Pentanone (2)10micro-L(613), 5micro-L(413) (3) CH3CN/THF/H2O=30/30/40 (4)0.8mL/min(613), 0.6mL/min(413) (5)RT(25deg-C) (6)UV(262nm)
RSpak DS-613 (1)0.5% Benzene (2)5micro-L (3) CH3CN/THF/H2O=40/30/30 (4)0.8mL/min (5)RT(25deg-C) (6)UV(254nm)
RSpak DE-613 (1)0.2% Ethylene glycol (2)20micro-L (3) H2O (4)0.8mL/min (5)RT(25deg-C) (6)RI
RSpak DE-413
GOLF
CARB
(1)0.6% Di-n-butyl ketone (2)10micro-L (3) CH3CN/H2O=50/50 (4)1.0mL/min (5)40deg-C (6)UV (262nm)
RSpak DE-213 (1)0.6% Di-n-butyl ketone (2)3micro-L (3) CH3CN/H2O=50/50 (4)0.2mL/min (5)40deg-C (6)UV (262nm)
RSpak DM-614 (1)2% Oxalic acid (2)5micro-L (3)0.005M H3PO4 aq. (4)0.8mL/min (5)RT(25deg-C) (6)RI
RSpak DC-613 (1)2% Sucrose (2)10micro-L (3)CH3CN/H2O=70/30 (4)0.8mL/min (5)RT(25deg-C) (6)RI
RSpak NN (1)0.1% Uracil(414), 0.01% Uracil(614, 814) (2) 7micro-L(414, 614), 10micro-L(814) (3)0.1M NaH2PO3aq.(pH3.0 adjusted with phosphoric acid) (4)0.3mL/min(414), 0.8mL/min(614), 1.0mL/min(814) (5)35deg-C (6)RI(414), UV(260nm)(614, 814)
Normal &
reversed
phase
(Silica-
based)
ODSpak F (1)0.15micro-L/mL t-Butyl benzene (2)2micro-L(411/S), 20micro-L(411), 30micro-L(511) (3)Methanol/H2O=80/20 (4)1.0mL/min (5)RT(25deg-C) (6)UV(254nm)
Silica C18M
C18P
(1)0.61mg/mL Naphthalene (2)2micro-L(4E), 1.5micro-L(4D) (3)Methanol/H2O=70/30 (4)1.0mL/min (5)30deg-C (6)UV(254nm)
Silicapak E-411 (1)0.05% p-Nitroaniline (2)5micro-L (3) IPA/Dichloromethane/n-hexane=1/50/49 (4)1.0mL/min (5)RT(25deg-C) (6)UV(254nm)
Silica 5SIL
Silica 5C8,5C4
5TMS,5CN
(1)0.61mg/mL Naphthalene (2)2micro-L(4E), 1.5micro-L(4D) (3)Methanol/H2O=55/45(5C4), Methanol/H2O=66/36(5C8), Methanol/H2O=50/50(TMS), Methanol/H2O=40/60(CN) (4)1.0mL/min (5)30deg-C (6)UV(254nm)
Silica 5NH (1)p-Nitrophenyl-alpha-D-glucopyranoside (2)2micro-L(4E), 1.5micro-L(4D) (3)CH3CN/H2O=95/5 (4)1.0mL/min (5)30deg-C (6)UV(254nm)
Silica 5NPE
Silica 5PYE
Ion
exchange
AXpak WA-624 (1)0.03% Uridine 5-monophosphate(UMP) (2)10micro-L (3)0.1M NaH2PO3(pH3.0 adjusted with phosphoric acid)/CH3CN=80/20 (4)1.0mL/min (5)RT(25deg-C) (6)UV(260nm)
CXpak P-421S (1)1% Ethylene glycol (2)10micro-L (3)H2O (4)0.5mL/min (5)RT(25deg-C) (6)RI
IEC QA,DEAE
SP,CM
(1)0.5% Acetone (2)20micro-L (3)50mM Sodium sulfate aq. (4)1.0mL/min (5)RT(25deg-C) (6)UV(280nm)
IEC DEAE-N (1)Oligodeoxyadenylic acid (pd(A)7) (A) 0.01unit/2micro-L (2)2micro-L (3)50mM phosphoric acid buffer(pH6.0) + 0.17M NaCl + 1% Methanol (4)1.0mL/min (5)30deg-C (6)UV(260nm)
IEC SP-N (1)0.2% Glycyl-L-tyrosine (2)1micro-L (3)20mM Acetate buffer(pH5.0) + 0.5M Sodium sulfate (4)1.0mL/min (5)RT(25deg-C) (6)UV(280nm)
Asahipak ES-502N (1)0.025% Xanthine (2)15micro-L (3)50mM 1,3 Diaminopropane + 50mM NaCl(pH10.0) (4)1.0mL/min (5)30deg-C (6)UV detector(250nm)
Asahipak ES-502C (1)0.025% Cytosine (2)15micro-L (3)100mM Sodium phosphate buffer(pH4.4) (4)1.0mL/min (5)30deg-C (6)UV(250nm)
Hydrophobic
chromato-
graphy
HIC PH-814 (1)0.5% Acetone (2)20micro-L (3)H2O (4)1.0mL/min (5)RT(25deg-C) (6)UV(280nm)
Affinity
chromato-
graphy
AFpak 32 kinds
Sugar
analysis
SUGAR SH1011
SH1821
(1)1% Glycerol (2)10micro-L (3)0.005mM H2SO4 aq. (4)1.0mL/min (5)50deg-C (6)RI
SUGAR SP0810
(1)1% Glycerol (2)10micro-L (3)H2O (4)0.8mL/min (5)80deg-C (6)RI
SUGAR SC1011
SC1811
(1)1% Glycerol (2)10micro-L (3)H2O (4)1.0mL/min (5)80deg-C (6)RI
SUGAR SC1211 (1)1% Glycerol (2)10micro-L (3)CH3CN/H2O=25/75 (4)1.0mL/min (5)50deg-C (6)RI
SUGAR SZ5532 (1)1% Glucose (2)10micro-L (3)CH3CN/H2O=70/30 (4)1.0mL/min (5)50deg-C (6)RI
SUGAR KS-800 (1)3% Ethylene glycol(801), 2.5% Ethylene glycol(802), 0.5% Ethylene glycol(803), 0.8% Glucose(804 to 806), 0.5% Glucose(807) (2)5micro-L(801 to 802), 15micro-L(803), 20micro-L(804,805),10micro-L(806), 5micro-L(807) (3)H2O (4)1.0mL/min (5)50deg-C(801 to 806), RT(25deg-C)(807) (6)RI
USPpak MN (1)0.5% Mannitol (2)10micro-L (3)H2O (4)1.0mL/min (5)60deg-C (6)RI
Organic acid
analysis
RSpak KC-811 (1)3% Acetic acid (2)5micro-L (3)0.1%H2SO4 aq. (4)1.0mL/min (5)40deg-C (6)RI
Chiral
separation
ORpak CDA-453 (1)0.1% 6-fluoro-DL-tryptophan (2)10micro-L (3)H2O (4)0.3mL/min (5)20deg-C (6)UV(254nm)
ORpak CDB-453 (1)0.1% DL-Methionine beta-naphthylamide (2)10micro-L (3)1.7% TEA/Acetic acid(pH4.0) + 0.1M NaCl in 20% CH3CN + 80% H2O (4)0.2mL/min (5)20deg-C (6)UV(254nm)
ORpak CDC-453 (1)0.02% Dancyl-DL-leucine (2)20micro-L (3)1% Acetic acid + 0.2M NaCl in10% CH3CN + 90% H2O (4)0.3mL/min (5)RT(25deg-C) (6)UV(254nm)
ORpak CDBS (1)0.1% Nefopam-HCl (Sigma N-0391) (2)10micro-L (3)CH3CN/(1% Acetic acid + 0.2M NaCl) =30/70 (4)0.5mL/min (5)RT(25deg-C) (6)UV(254nm)
ORpak CRX-853 (1)0.1% R,S-Mandelic acid (2)20micro-L (3)0.25mM Copper sulfate aq. (4)1.0mL/min (5)RT(25deg-C) (6)UV(280nm)
GFC
(Aqueous
GPC)
OHpak SB-800 HQ (1)1% Ethylene glycol(802), 0.5% Ethylene glycol(802.5 to 806) (2)10micro-L(802), 15micro-L(802.5 to 806) (3)H2O (4)1.0mL/min (5)RT(25deg-C) (6)RI
PROTEIN KW-800 (1)0.2% Ethylene glycol (2)40micro-L (3)H2O (4)1.0mL/min (5)RT(25deg-C) (6)RI
Multimode Asahipak GS-HQ (1)1% Ethylene glycol (2)30micro-L (3)H2O (4)0.6mL/min (5)30deg-C (6)RI
Multisolvent
GPC
Asahipak GF-HQ
Organic
GPC
GPC KF-800 (1)0.1% Propylbenzene(801 to 803), 0.05% Propylbenzene(804 to 807) (2)20micro-L(801 to 803), 40micro-L(804 to 807) (3)THF (4)1.0mL/min (5)RT(25deg-C) (6)UV(254nm)
GPC KF-600 (1)0.5% Propylbenzene(601), 0.05% Phthalic acid dicyclohexyl ester(602 to 604), 0.1% Phthalic acid dicyclohexyl ester(605 to 606) (2)5micro-L (3)THF (4)0.5mL/min (5)RT(25deg-C) (6)UV(254nm)
GPC KF-400HQ (1)0.5% Propylbenzene(401402 to 406L) (2)5micro-L (3)THF (4)0.3mL/min (5)RT(25deg-C) (6)UV(254nm)
GPC LF (1)0.1% Propylbenzene(804), 0.1% Phthalic acid dicyclohexyl ester(604, 404) (2)20micro-L(804), 5micro-L(604, 404) (3)THF (4)1.0mL/min(804), 0.5mL/min(604), 0.3mL/min(404) (5)RT(25deg-C) (6)UV(254nm)
GPC K-800 (1)0.1% Propylbenzene(801 to 803), 0.05% Propylbenzene(804 to 807) (2)20micro-L(801 to 803), 40micro-L(804 to 807) (3)THF (4)1.0mL/min (5)RT(25deg-C) (6)UV(254nm)
GPC KD-800 (1)1.0 % Acetone(801 to 804), 0.5 % Acetone(805 to 807)(2)20micro-L(801 to 804), 30micro-L(805,806), 40micro-L(807) (3)DMF (4)1.0mL/min (5)RT(25deg-C) (6)RI
GPC HFIP-800 (1)0.5% Acetone (2)30micro-L (3)HFIP (4)1.0mL/min (5)RT(25deg-C) (6)UV(280nm)
GPC HT, UT (1)10% Monochlorobenzene toluene solution (2)10micro-L (3)Toluene (4)1.0mL/min (5)RT(25deg-C) (6)RI
GPC AT-806MS (1)1% Acetone (2)20micro-L (3)Toluene (4)1.0mL/min (5)RT(25deg-C) (6)RI
Ion
chroato-
graphy
IC I-524A (1)10ppm NO3- (2)30micro-L (3)2.5mM Phthalic acid(pH4.0) (4)1.5mL/min (5)40deg-C (6)CD
IC NI-424 (1)10ppm SO42- (2)50micro-L (3)8mM p-Hydroxybenzoic acid + 2.8mM Bis(2hydroxyethyl)imino-tris(hydroxymethyl)methan + 2mM Phenylboronic acid + 5micro-M trans-1,2-Aminocyclohexane-N,N,N',N'-4 acetic acid aq.(4)1.0mL/min (5)40deg-C (6)CD
IC SI-90 (1)15ppm SO42- (2)20micro-L (3)1.8mM Na2CO3 + 1.7mM NaHCO3 aq. (4)1.0mL/min (5)RT(25deg-C) (6)Ssuppressed CD
IC SI-50 (1)10ppm Br- (2)20micro-L (3)3.2mM Na2CO3 + 1.0mM NaHCO3 aq. (4)0.7mL/min (5)RT(25deg-C) (6)Ssuppressed CD
IC SI-52 (1)40ppm SO4- (2)50micro-L (3)3.6mM Na2CO3 aq. (4)0.8mL/min (5)45deg-C (6)Ssuppressed CD
IC T-521 (1)20ppm Na+ (2)20micro-L (3)3mM Nitric acid aq. (4)1.0mL/min (5)40deg-C (6)CD
IC R (1)1% Ethylene glycol (2)2micro-L (3)H2O (4)1.0mL/min (5)RT(25deg-C) (6)RI
IC Y-521 (1)20ppm Na+ (2)50micro-L (3)4mM Nitric acid aq. (4)1.5mL/min (5)40deg-C (6)CD
IC YK-421 (1)20ppm Ca2+ (2)15micro-L (3)5mM Tartaric acid + 1mM Dipicolinic acid + 24mM Boric acid aq.(4)1.0mL/min (5)40deg-C (6)CD

For flere detaljer og pris, kontakt venligst MD Scientific via e-mail: info@md-scientific.dk eller telefon: 7027 8565.

 

MD Scientific
MD Scientific
MD Scientific
MD Scientific ApS • Denmark • tlf. 7027 8565 • fax 7027 8566 • info@md-scientific.dk