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New GPC/SEC Combination Detector

Testa Analytical Introduces an advanced detector package combining Multiple Angle Light Scattering and Differential Refractive Index (MALS/DRI) for more demanding Gel Permeation Chromatography (GPC/SEC) Applications. Click to read more. ....

Testa Analytical Introduces , Multiple Angle Light Scattering , Differential Refractive Index , Gel Permeation Chromatography ,

Refractive Index Detector Kits for HPLC and uHPLC

Flexible detectors for liquid chromatography Based on decades of experience in the chromatography field, Testa Analytical Solutions eK has designed a Differential Refractive Index (DRI) detector kit adaptable to fulfil the specific demands of different HPLC system manufacturers. Click to read more. ....

Testa Analytical Solutions , Differential Refractive Index ,

Process and Control Today | Refractive Index Detector Kits for HPLC & uHPLC

Process and Control Today | Refractive Index Detector Kits for HPLC & uHPLC
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Analytical Solutions , Testa Analytical Solutions , Refractive Index Detector Kits , Differential Refractive Index ,

Optimised Refractive Index Detectors for HPLC and GPC/SEC

Testa Analytical Solutions eK reports on growing interest in OEM versions of its Differential Refractive Index (DRI) detector to enhance the performance of both HPLC and GPC/SEC systems. Click to read more. ....

Charlotte Stentzler , Testa Analytical Solutions , Differential Refractive Index , Technical Manager , Testa Analytical ,

Highly Stable Detector Improves GPC/SEC Results

Jan 06 2021 Read 1616 Times
The Differential Refractive Index (DRI) detector from Testa Analytical Solution eK offers unmatched accuracy and reliability for determination of absolute concentration and total mass balance in Gel Permeation Chromatography/Size Exclusion Chromatography (GPC/SEC) applications.
The baseline signal stability of any liquid chromatography detector is very important, as it is a limiting factor in peak determination. Detector stability gains even more importance where analysis time is long, such as is commonly encountered in high resolution GPC/SEC applications.
Use of multiple columns is common in GPC/SEC as a technique to increase resolution and also to increase the available dynamic range in terms of molecular weight. As such, high resolution GPC/SEC measurements can often take 30 to 60 minutes for a single separation. As a result, most HPLC detectors adapted for use in GPC/SEC will show a significant baseline drift between ....

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