The Viscotek TDAmax is a complete, advanced, multidetector GPC/SEC system suitable for all macromolecular applications.
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OmniSEC |
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| Acquisition |
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6 channels, 5Hz, unlimited acquisition time |
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| Calculation modules |
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Conventional, Universal, Light Scattering, Triple, Copolymer, Protein specific, FIPA |
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| Results output |
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Mn, Mw, Mz, Mp, Mw/Mn, IV [η], Rh, Rg, Branching Number, Branching Frequency, Number of Arms, Weight Fraction, Concentration, MH-a, MH-k, dn/dc, dA/dc. A2 |
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| Minimum PC specification |
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Windows XP or higher, 100 GB HD, 2GB RAM, 1.8 GHz processor,
Graphics 1024x768, 16-bit colour depth |
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TDA |
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| Temperature control |
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Ambient to 80ºC all detector cells and columns |
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| Detector configuration |
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All detector cells in series for full signals |
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| Column capacity |
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Up to 5 x 30cm GPC/SEC columns |
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| Interface |
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6 channel digital interface to OmniSEC software
2 analog inputs, RI and UV/LS |
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| Dimensions |
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41cm x 28cm x 54cm (W x H x D); 30Kg |
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Light scattering detector |
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| Measuring principle |
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RALS, 90º angle; LALS, 7º angle, with high efficiency optics |
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| Light Source |
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Temperature controlled laser diode, 3mW, 670nm |
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| Cell |
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Ultra low volume 18μL |
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| Data rate |
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100Hz collection, DSP with 5Hz to OmniSEC |
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Refractive index detector |
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| Measuring principle |
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Deflection |
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| Light Source |
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LED |
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| Cell |
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45° quartz glass, 12μL volume |
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| Purging |
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3 modes, Manual, Automatic and Programmable |
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| Data rate |
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100Hz collection, DSP with 5Hz to OmniSEC |
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Viscometer detector |
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| Measuring principle |
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Inert, 4 capillary differential Wheatstone bridge configuration |
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| Transducers |
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Digital Inert Transducer technology with over-pressure protection |
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| Measuring volume |
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18μL |
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| Purging |
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3 modes, Manual, Automatic and Programmable |
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| Data rate |
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100Hz collection, DSP with 5Hz to OmniSEC |
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UV detector |
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| Wavelength |
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190 to 740nm |
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| Light Source |
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Deuterium; Tungsten halogen is optional |
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| Cell volume |
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10μL |
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| Data rate |
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Analog collection of single wavelength (programmable), A-to-D with 5Hz to OmniSEC |
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UV-PDA detector |
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| Wavelength/resolution |
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190 to 500nm or 430 to 710nm on 256 diode array |
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| Light Source |
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Deuterium (190-500nm) or Tungsten (430-710nm) |
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| Cell volume |
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10μL |
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| Data rate |
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256 channels at 1Hz direct to OmniSEC |
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GPCmax |
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| Operation and Control |
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By OmniSEC software or from front panel |
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| Dimensions |
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55cm x 38cm x 53cm (W x H x D); 37kg |
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Degasser |
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| Channels/volume |
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Two channels, 8ml per channel |
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| Performance |
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<0.5 ppm oxygen at 0.5 mL/min |
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| Eluent Sensor |
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User selectable, stops GPC pump when eluent runs out |
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Pump |
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| Flow rate range |
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0.01 to 9.99 mL/min |
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| Pulsation |
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Less than 1% (measured with viscometer) |
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| Pressure Reading |
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MPa or PSI |
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| Soft start/stop |
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User programmable in mL/min/min |
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Autosampler |
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| Capacity (Standard) |
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120 vials, freely programmable position sequence |
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| Range |
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Variable injection volume, between 20 and 150μL |
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| Reproducibility |
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Better than 0.5 % |
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| Carryover |
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Less than 0.1%, depending on wash program |
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| Cooling option |
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4°C to 40°C |
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| Capacity (with cooling option) |
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60 vials cooled, freely programmable position sequence |
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| Heated tray option |
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65°C fixed in one tray |
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| Capacity (with heating option) |
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60 vials heated, 60 unheated, freely programmable position sequence |
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