|
|
TSK-GEL Alpha and SuperAW columns were developed for the GPC analysis of polymers of intermediate polarity. As in the PW- and PWxl-type resins, the particles in TSK-GEL Alpha and SuperAW columns have a hydroxylated methacrylate polymer backbone, but they are crosslinked to a higher degree than PW- and PWxl-type columns to minimize swelling in polar organic solvents.
TSK-GEL Alpha and SuperAW particles are available in a wide variety of pore sizes.
- Use semi-micro TSK-GEL SuperAW columns
- for high-throughput applications
- to reduce solvent consumption
- to reduce solvent disposal cost.
- Use TSK-GEL Alpha columns
- when analysis time is not critical
- when sample mass is not limited
- to collect fractions
- to obtain maximum number of plates (at the expense of analyis time).
|
Highlights:
- Alpha and SuperAW columns
- Particle sizes
- SuperAW, 4-9μm particles
- Alpha, 7-13μm particles
- No or minimal swelling in a wide range of polar organic solvents: methanol, acetonitrile, DMSO, isopropanol, THF, and HFIP.
-
For high thoughput applications, TSK-GEL SuperAW columns provide equivalent resolution in 1/2 the time compared to TSK-GEL Alpha columns.
-
Accurate MW determination and normal retention of polystrene polymers in DMF solvent.
-
System peaks from salts in the eluent elute away from the oligomer of interest.
-
Applications: polymers that are soluble in methanol, acetonitrile, DMSO, isopropanol, or THF; can also be used for water-soluble polymers.
|
TSK-GEL SuperAW |
TSK-GEL Alpha |
TSK-GEL SuperAW column line consists of five columns and a mixed-bed column.
High efficiency TSK-GEL SuperAW columns are only available in 6.0mm ID x 15cm columns for High Throughput applications.
|
TSK-GEL Alpha column line consist of five columns and a mixed-bed column.
TSK-GEL Alpha columns are available in conventional 7.8mm ID x 30cm column formats.
f
|
|
TSK-GEL SuperAW
TSK-GEL SuperAW columns are composed of spherical, hydrophilic methacrylate beads. Figure 1 shows the calibration curves of all TSK-GEL SuperAW columns.
Figure 1: Polyethylene oxide (PEO), polyethylene glycol (PEG) and Ethylene glycol (EG) calibration curves for TSK-GEL SuperAW series columns
|
|
Unlike PW/PWxl-type columns, which are stable up to 50% organic mixed with water, SuperAW and Alpha-type columns are stable in a wide variety of organic solvents at concentrations up to 100%. As shown in Figure 2, efficiency of all SuperAW-type columns is maintained when changing solvents from water via acetonitrile, DMF, DMSO, THF to HFIP. |
Figure 2: Solvent Compatibility of TSK-GEL SuperAW Series
|
|
TSK-GEL SuperAW columns are used for high efficiency and high speed analysis of polymers that are soluble in polar organic solvents. Examples include cleansing gel in methanol, degree of saponification of polyvinylalcohol in HFIP, and sodium dodecylsulfate, polyimide, and cellulose derivatives in DMF with 10mmol/L LiBr.
Mixed-bed TSK-GEL SuperAW Column
The mixed-bed column, TSKgel SuperAWM-H, has an extended linear calibration range, and is suitable for samples with a broad MW distribution as well as samples with unknown molecular weight.
TSKgel SuperAW2500
TSK-GEL SuperAW2500 columns are packed with rigid, porous, polymer beads which show minimal shrinkage or swelling in different solvent systems. They are used for the separation of polymers that are soluble in polar organic solvents.
|
Product Attributes:
| Matrix: |
hydrophilic
methacrylate |
| Particle size (mean): |
4µm |
| Pore size (mean): |
25Å |
Exclusion limit (DMF): |
|
| Polyethylene oxide |
2,000 Da |
| Shipping solvent: |
water |
| Max. pressure: |
6.0 MPa |
|
Literature:
Application Note -- High-Throughput SEC of Water Soluble Polymers Using TSK-GEL SuperAW Columns
Catalog -- Chromatography Catalog, SEC Columns, Overview
Catalog -- Chromatography Catalog, SEC Columns, Alpha and SuperAW
Operating Conditions and Specifications
Product Overview -- TSK-GEL SuperAW Columns
Separation Report -- TSK-GEL SuperAW Series High-performance SEC Semi-Micro Columns
Application Overview -- Gel Filtration Chromatography with TSK-GEL columns
|
Calibration Curves |
Polyethylene oxide (PEO), polyethylene glycol (PEG) and ethylene glycol (EG) calibration curves for TSK-GEL SuperAW series
|
|
|
Ordering information:
To order or get a price, please contact Søren Jensen, sorenj@md-scientific.dk, Mobile 2421 2559.
P/N |
Description |
Particle
size |
Housing material |
ID
(mm) |
Length
(cm) |
19315 |
TSKgel SuperAW2500 |
4µm |
Stainless Steel |
6 |
15 |
19321 |
Guard Column for P/N 19315 |
|
Stainless Steel |
4.6 |
3.5 |
|
|
TSKgel SuperAW3000
TSK-GEL SuperAW3000 columns are packed with rigid, porous, polymer beads which show minimal shrinkage or swelling in different solvent systems. They are used for the separation of polymers that are soluble in polar organic solvents.
|
Product Attributes:
| Matrix: |
hydrophilic
methacrylate |
| Particle size (mean): |
4µm |
| Pore size (mean): |
150Å |
Exclusion limit (DMF): |
|
| Polyethylene oxide |
60,000 Da |
| Shipping solvent: |
water |
| Max. pressure: |
6.0 MPa |
|
Literature:
Application Note -- High-Throughput SEC of Water Soluble Polymers Using TSK-GEL SuperAW Columns
Catalog -- Chromatography Catalog, SEC Columns, Overview
Catalog -- Chromatography Catalog, SEC Columns, Alpha and SuperAW
Operating Conditions and Specifications
Product Overview -- TSK-GEL SuperAW Columns
Separation Report -- TSK-GEL SuperAW Series High-performance SEC Semi-Micro Columns
Application Overview -- Gel Filtration Chromatography with TSK-GEL columns
|
Calibration Curves |
Polyethylene oxide (PEO), polyethylene glycol (PEG) and ethylene glycol (EG) calibration curves for TSK-GEL SuperAW series
|
|
|
Ordering information:
To order or get a price, please contact Søren Jensen, sorenj@md-scientific.dk, Mobile 2421 2559.
P/N |
Description |
Particle
size |
Housing material |
ID
(mm) |
Length
(cm) |
19316 |
TSKgel Super AW3000 |
4µm |
Stainless Steel |
6 |
15 |
19321 |
Guard Column for P/N 19316 |
|
Stainless Steel |
4.6 |
3.5 |
|
|
TSKgel SuperAW4000
TSK-GEL SuperAW4000 columns are packed with rigid, porous, polymer beads which show minimal shrinkage or swelling in different solvent systems. They are used for the separation of polymers that are soluble in polar organic solvents.
|
Product Attributes:
| Matrix: |
hydrophilic
methacrylate |
| Particle size (mean): |
6µm |
| Pore size (mean): |
450Å |
Exclusion limit (DMF): |
|
| Polyethylene oxide |
400,000 Da |
| Shipping solvent: |
water |
| Max. pressure: |
4.0 MPa |
|
Literature:
Application Note -- High-Throughput SEC of Water Soluble Polymers Using TSK-GEL SuperAW Columns
Catalog -- Chromatography Catalog, SEC Columns, Overview
Catalog -- Chromatography Catalog, SEC Columns, Alpha and SuperAW
Operating Conditions and Specifications
Product Overview -- TSK-GEL SuperAW Columns
Separation Report -- TSK-GEL SuperAW Series High-performance SEC Semi-Micro Columns
Application Overview -- Gel Filtration Chromatography with TSK-GEL columns
|
Calibration Curves |
Polyethylene oxide (PEO), polyethylene glycol (PEG) and ethylene glycol (EG) calibration curves for TSK-GEL SuperAW series
|
|
|
Ordering information:
To order or get a price, please contact Søren Jensen, sorenj@md-scientific.dk, Mobile 2421 2559.
P/N |
Description |
Particle
size |
Housing material |
ID
(mm) |
Length
(cm) |
19317 |
TSKgel SuperAW4000 |
6µm |
Stainless Steel |
6 |
15 |
19321 |
Guard Column for P/N 19317 |
|
Stainless Steel |
4.6 |
3.5 |
|
|
TSKgel SuperAW5000
TSK-GEL SuperAW5000 columns are packed with rigid, porous, polymer beads which show minimal shrinkage or swelling in different solvent systems. They are used for the separation of polymers that are soluble in polar organic solvents.
|
Product Attributes:
| Matrix: |
hydrophilic
methacrylate |
| Particle size (mean): |
7µm |
| Pore size (mean): |
1000Å |
Exclusion limit (DMF): |
|
| Polyethylene oxide |
4,000,000 Da |
| Shipping solvent |
water |
| Max. pressure: |
3.0 MPa |
|
Literature:
Application Note -- High-Throughput SEC of Water Soluble Polymers Using TSK-GEL SuperAW Columns
Catalog -- Chromatography Catalog, SEC Columns, Overview
Catalog -- Chromatography Catalog, SEC Columns, Alpha and SuperAW
Operating Conditions and Specifications
Product Overview -- TSK-GEL SuperAW Columns
Separation Report -- TSK-GEL SuperAW Series High-performance SEC Semi-Micro Columns
Application Overview -- Gel Filtration Chromatography with TSK-GEL columns
|
Calibration Curves |
Polyethylene oxide (PEO), polyethylene glycol (PEG) and ethylene glycol (EG) calibration curves for TSK-GEL SuperAW series
|
|
|
Ordering information:
To order or get a price, please contact Søren Jensen, sorenj@md-scientific.dk, Mobile 2421 2559.
P/N |
Description |
Particle
size |
Housing material |
ID
(mm) |
Length
(cm) |
19318 |
TSKgel SuperAW5000 |
7µm |
Stainless Steel |
6 |
15 |
19322 |
Guard Column for 19318 |
|
Stainless Steel |
4.6 |
3.5 |
|
|
TSKgel SuperAW6000
TSK-GEL SuperAW6000 columns are packed with rigid, porous, polymer beads which show minimal shrinkage or swelling in different solvent systems. They are used for the separation of polymers that are soluble in polar organic solvents.
|
Product Attributes:
| Matrix: |
hydrophilic
methcrylate |
| Particle size (mean): |
9µm |
| Pore size (mean): |
ND |
Exclusion limit (DMF): |
|
| Polyethylene oxide |
> 4x10^7 Da |
| Shipping solvent: |
water |
| Max. pressure: |
2.0 MPa |
|
Literature:
Application Note -- High-Throughput SEC of Water Soluble Polymers Using TSK-GEL SuperAW Columns
Catalog -- Chromatography Catalog, SEC Columns, Overview
Catalog -- Chromatography Catalog, SEC Columns, Alpha and SuperAW
Operating Conditions and Specifications
Product Overview -- TSK-GEL SuperAW Columns
Separation Report -- TSK-GEL SuperAW Series High-performance SEC Semi-Micro Columns
Application Overview -- Gel Filtration Chromatography with TSK-GEL columns
|
Calibration Curves |
Polyethylene oxide (PEO), polyethylene glycol (PEG) and ethylene glycol (EG) calibration curves for TSK-GEL SuperAW series
|
|
|
Ordering information:
To order or get a price, please contact Søren Jensen, sorenj@md-scientific.dk, Mobile 2421 2559.
P/N |
Description |
Particle
size |
Housing material |
ID
(mm) |
Length
(cm) |
19319 |
TSKgel SuperAW6000 |
9µm |
Stainless Steel |
6 |
15 |
19322 |
Guard Column for P/N 19319 |
|
Stainless Steel |
4.6 |
3.5 |
|
|
TSKgel SuperAWM-H
TSK-GEL SuperAWM-H columns are packed with rigid, porous, polymer beads which show minimal shrinkage or swelling in different solvent systems. They are used for the separation of polymers that are soluble in polar organic solvents.
|
Product Attributes:
| Matrix: |
hydrophilic
methacrylate |
| Particle size (mean): |
9µm |
| Pore size (mean): |
mixed bed |
Exclusion limits: |
|
| Polyethylene oxide |
1,000,000 Da |
| Shipping solvent: |
water |
| Max. pressure: |
2.0 MPa |
|
Literature:
Application Note -- High-Throughput SEC of Water Soluble Polymers Using TSK-GEL SuperAW Columns
Catalog -- Chromatography Catalog, SEC Columns, Overview
Catalog -- Chromatography Catalog, SEC Columns, Alpha and SuperAW
Operating Conditions and Specifications
Product Overview -- TSK-GEL SuperAW Columns
Separation Report -- TSK-GEL SuperAW Series High-performance SEC Semi-Micro Columns
Application Overview -- Gel Filtration Chromatography with TSK-GEL columns |
Calibration Curves |
Polyethylene oxide (PEO), polyethylene glycol (PEG) and ethylene glycol (EG) calibration curves for TSK-GEL SuperAW series
|
|
|
Ordering information:
To order or get a price, please contact Søren Jensen, sorenj@md-scientific.dk, Mobile 2421 2559.
P/N |
Description |
Particle
size |
Housing material |
ID
(mm) |
Length
(cm) |
19320 |
TSKgel SuperAWM-H |
9µm |
Stainless Steel |
6 |
15 |
19322 |
Guard Column for P/N 19320 |
|
Stainless Steel |
4.6 |
3.5 |
|
|
TSK-GEL Alpha-type Columns for the Analysis of Polar Organic-soluble Polymers
TSK-GEL Alpha columns are composed of spherical, hydrophilic methacrylate beads. Figure 1 shows the calibration curves of all Alpha columns.
Figure 1: Calibration curves of TSK-GEL Alpha columns
|
|
Unlike PW-type columns, which are stable at most to a 50% organic mixed with water, Alpha-type columns are stable in a wide variety of organic solvents at concentrations up to 100%. Suitable solvents are shown in Figure 2.
Figure 2: Solvent compatibility for TSKgel Alpha-3000 for organic solvents
|
|
The main application area for Alpha columns is the analysis of polymers that are soluble in polar organic solvents. Examples include cellulose derivatives, polyimide, and sodium dodecylsulfate (all in DMF with 10mmol/L DMF), cleansing gel in methanol, and degree of saponification of polyvinylalcohol in HFIP.
Mixed-bed TSK-GEL Alpha Column
The mixed-bed column, TSKgel Alpha-M, has an extended linear calibration range, and is suitable for samples with a broad MW distribution as well as samples with unknown molecular weight.
TSKgel Alpha-2500
TSK-GEL Alpha-2500 columns are packed with rigid, porous, polymer beads which show minimal shrinkage or swelling in different solvent systems. They are best used for the separation of polymers that are soluble in polar organic solvents such as methanol, ethanol, DMF, THF, HFIP, DMSO, 2-propanol, and acetonitrile. |
Product Attributes:
| Matrix: |
hydrophilic
methacrylate |
| Particle size (mean): |
7µm |
| Pore size (mean): |
25Å |
Exclusion limits: |
|
| Polyethylene oxide |
5,000 Da (water) |
| Polystyrene (THF) |
10,000 Da |
| Shipping solvent: |
water |
| Max. pressure drop: |
4 MPa |
|
Literature:
Catalog -- Chromatography Catalog, SEC Columns, Overview
Catalog -- Chromatography Catalog, SEC Columns, Alpha and SuperAW
Operating Conditions and Specifications
Product Overview -- TSK-GEL Alpha Series Columns for Size Exclusion Chromatography
Separation Report -- Analyzing Polymers that are Soluble in Polar-Organic Solvents with TSK-GEL Alpha Series Columns
Application Overview -- Gel Filtration Chromatography with TSK-GEL columns
|
Applications |
TSKgel Alpha-2500 separation of cleansing gel
|
|
|
Ordering information:
To order or get a price, please contact Søren Jensen, sorenj@md-scientific.dk, Mobile 2421 2559.
P/N |
Description |
Particle
size |
Housing material |
ID
(mm) |
Length
(cm) |
18339 |
TSKgel Alpha-2500 |
7µm |
Stainless Steel |
7.8 |
30 |
18345 |
Guard Column for P/N 18339 |
|
Stainless Steel |
6 |
4 |
|
|
TSKgel Alpha-3000
TSK-GEL Alpha-3000 columns are packed with rigid, porous, polymer beads which show minimal shrinkage or swelling in different solvent systems. They are best used for the separation of polymers that are soluble in polar organic solvents such as methanol, ethanol, DMF, THF, HFIP, DMSO, 2-propanol, and acetonitrile. |
Product Attributes:
| Matrix: |
hydrophilic
methacrylate |
| Particle size (mean): |
7µm |
| Pore size (mean): |
150Å |
Exclusion limits: |
|
| Polyethylene oxide |
90,000 Da (water) |
| Polystyrene (THF) |
100,000 Da |
| Shipping solvent: |
water |
| Max. pressure: |
4 MPa |
|
Literature:
Catalog -- Chromatography Catalog, SEC Columns, Overview
Catalog -- Chromatography Catalog, SEC Columns, Alpha and SuperAW
Operating Conditions and Specifications
Product Overview -- TSK-GEL Alpha Series Columns for Size Exclusion Chromatography
Separation Report -- Analyzing Polymers that are Soluble in Polar-Organic Solvents with TSK-GEL Alpha Series Columns
Application Overview -- Gel Filtration Chromatography with TSK-GEL columns
|
Applications |
Polyvinylalcohol characterization using TSKgel Alpha-5000 and Alpha-3000 columns in series
|
|
|
Ordering information:
To order or get a price, please contact Søren Jensen, sorenj@md-scientific.dk, Mobile 2421 2559.
P/N |
Description |
Particle
size |
Housing material |
ID
(mm) |
Length
(cm) |
18340 |
TSKgel Alpha-3000 |
7µm |
Stainless Steel |
7.8 |
30 |
18345 |
Guard Column for P/N 18340 |
|
Stainless Steel |
6 |
4 |
|
|
TSKgel Alpha-4000
TSK-GEL Alpha-4000 columns are packed with rigid, porous, polymer beads which show minimal shrinkage or swelling in different solvent systems. They are best used for the separation of polymers that are soluble in polar organic solvents such as methanol, ethanol, DMF, THF, HFIP, DMSO, 2-propanol, and acetonitrile. |
Product Attributes:
| Matrix: |
hydrophilic
methacrylate |
| Particle size: |
10µm (mean) |
| Pore size: |
450Å (mean) |
Exclusion limits: |
|
| PEO |
40,000 Da (water) |
| Polystyrene |
1 million Da (THF) |
| Shipping solvent: |
water |
| Max. pressure: |
3 MPa |
|
Literature:
Catalog -- Chromatography Catalog, SEC Columns, Overview
Catalog -- Chromatography Catalog, SEC Columns, Alpha and SuperAW
Operating Conditions and Specifications
Product Overview -- TSK-GEL Alpha Series Columns for Size Exclusion Chromatography
Separation Report -- Analyzing Polymers that are Soluble in Polar-Organic Solvents with TSK-GEL Alpha Series Columns
Application Overview -- Gel Filtration Chromatography with TSK-GEL columns
|
Applications |
Separation of sodium dodecyl sulfate
|
|
|
Ordering information:
To order or get a price, please contact Søren Jensen, sorenj@md-scientific.dk, Mobile 2421 2559.
P/N |
Description |
Particle
size |
Housing material |
ID
(mm) |
Length
(cm) |
18341 |
TSKgel Alpha-4000 |
10µm |
Stainless Steel |
7.8 |
30 |
18345 |
Guard Column for P/N 18341 |
|
Stainless Steel |
6 |
4 |
|
|
TSKgel Alpha-5000
TSK-GEL Alpha-5000 columns are packed with rigid, porous, polymer beads which show minimal shrinkage or swelling in different solvent systems. They are best used for the separation of polymers that are soluble in polar organic solvents such as methanol, ethanol, DMF, THF, HFIP, DMSO, 2-propanol, and acetonitrile. |
Product Attributes:
| Matrix: |
hydrophilic
methacrylate |
| Particle size (mean): |
10µm |
| Pore size (mean): |
1000Å |
Exclusion limits: |
|
| Polyethylene oxide |
1 million Da (water) |
| Polystyrene (THF) |
7 million Da |
| Shipping solvent: |
water |
| Max. pressure: |
3 MPa |
|
Literature:
Catalog -- Chromatography Catalog, SEC Columns, Overview
Catalog -- Chromatography Catalog, SEC Columns, Alpha and SuperAW
Operating Conditions and Specifications
Product Overview -- TSK-GEL Alpha Series Columns for Size Exclusion Chromatography
Separation Report -- Analyzing Polymers that are Soluble in Polar-Organic Solvents with TSK-GEL Alpha Series Columns
Application Overview -- Gel Filtration Chromatography with TSK-GEL columns
|
Applications |
Polyvinylalcohol characterization using TSKgel Alpha-5000 and Alpha-3000 columns in series
|
|
|
|
Ordering information:
To order or get a price, please contact Søren Jensen, sorenj@md-scientific.dk, Mobile 2421 2559.
P/N |
Description |
Particle
size |
Housing material |
ID
(mm) |
Length
(cm) |
18342 |
TSKgel Alpha-5000 |
10µm |
Stainless Steel |
7.8 |
30 |
18345 |
Guard column for P/N 18342 |
|
Stainless Steel |
6 |
4 |
|
|
TSKgel Alpha-6000
TSK-GEL Alpha-6000 columns are packed with rigid, porous, polymer beads which show minimal shrinkage or swelling in different solvent systems. They are best used for the separation of polymers that are soluble in polar organic solvents such as methanol, ethanol, DMF, THF, HFIP, DMSO, 2-propanol, and acetonitrile. |
Product Attributes:
| Matrix: |
hydrophilic
methacrylate |
| Particle size (mean): |
13µm |
| Pore size (mean): |
ND |
Exclusion limits: |
|
| Polyethylene oxide |
> 1x10^7 Da (water) |
| Polystyrene (THF) |
> 10 million Da |
| Shipping solvent: |
water |
| Max. pressure: |
2 MPa |
|
Literature:
Catalog -- Chromatography Catalog, SEC Columns, Overview
Catalog -- Chromatography Catalog, SEC Columns, Alpha and SuperAW
Operating Conditions and Specifications
Product Overview -- TSK-GEL Alpha Series Columns for Size Exclusion Chromatography
Separation Report -- Analyzing Polymers that are Soluble in Polar-Organic Solvents with TSK-GEL Alpha Series Columns
Application Overview -- Gel Filtration Chromatography with TSK-GEL columns
|
Applications |
Polyethylene oxide (PEO) calibration curves
|
|
|
Ordering information:
To order or get a price, please contact Søren Jensen, sorenj@md-scientific.dk, Mobile 2421 2559.
P/N |
Description |
Particle
size |
Housing material |
ID
(mm) |
Length
(cm) |
18343 |
TSKgel Alpha-6000 |
13µm |
Stainless Steel |
7.8 |
30 |
18345 |
Guard Column for P/N 18343 |
|
Stainless Steel |
6 |
4 |
|
|
TSKgel Alpha-M
TSK-GEL Alpha-M columns are so-called mixed-bed columns with an extended linear calibration range. They are packed with rigid, porous, polymer beads which show minimal shrinkage or swelling in different solvent systems. They are best used for the separation of polymers that are soluble in polar organic solvents such as methanol, ethanol, DMF, THF, HFIP, DMSO, 2-propanol, and acetonitrile. |
Product Attributes:
| Matrix: |
hydrophilic
methacrylate |
| Particle size (mean): |
13µm |
| Exclusion limits: |
|
Polyethylene oxide |
> 10^7 Da (water) |
| Polystyrene (THF) |
> 10 million Da |
| Shipping solvent: |
water |
| Max. pressure: |
2 MPa |
|
Literature:
Catalog -- Chromatography Catalog, SEC Columns, Overview
Catalog -- Chromatography Catalog, SEC Columns, Alpha and SuperAW
Operating Conditions and Specifications
Product Overview -- TSK-GEL Alpha Series Columns for Size Exclusion Chromatography
Separation Report -- Analyzing Polymers that are Soluble in Polar-Organic Solvents with TSK-GEL Alpha Series Columns
Application Overview -- Gel Filtration Chromatography with TSK-GEL columns
|
Applications |
TSKgel Alpha-M separation of cellulose derivatives
|
|
|
Ordering information:
To order or get a price, please contact Søren Jensen, sorenj@md-scientific.dk, Mobile 2421 2559.
P/N |
Description |
Particle
size |
Housing material |
ID
(mm) |
Length
(cm) |
18344 |
TSKgel Alpha-M |
13µm |
Stainless Steel |
7.8 |
30 |
18345 |
Guard Column for P/N 18344 |
|
Stainless Steel |
6 |
4 |
|
|
For flere detaljer og pris, kontakt venligst MD Scientific via e-mail: info@md-scientific.dk eller telefon: 7027 8565.
Top
|
