Liquid Chromatography

Back-to-Basics #1: Retention Factor

This technical article looks at some of the basic calculations used in HPLC, with an emphasis on their practical utility for evaluating separations, developing methods and isolating problems. The first in line is the retention factor, k, often...

Column Overload – It’s Not That Simple

In may cases chromatographic processes can be simply described, wrapped in a neat package, and tied up with a pretty bow. This in not the case though with column overload.

Buffer Lifetime

There are two aspects of buffer lifetime. One has to do with how long it is effective as a buffer and the second is related to other buffer properties – in particular, microbial growth in the buffer solution.

Back-flushing an HPLC column?

In this article, we consider whether it is ok to back-flush a column. If a C18 column is used for a routine analysis and the pressure has risen, as in this example, if the column is reversed and unplugged will this be ok or will be the column be...

Easy characterisation workflows in therapeutic protein analysis

Looking for new and improved technologies to advance your peptide mapping strategies? Do you want to overcome automation problems with your therapeutic protein workflows? If so, signup for this educational presentation...

Automated software solution for preparative HPLC

DataApex has produced a white paper providing application examples of its Clarity software for analytical and small-scale preparative separation using multivendor analytical and preparative HPLC components.

A solution for data acquisition, processing and instrument control

The Clarity Advanced Chromatography Data Station (CDS) from DataApex provides a universal solution for any commercially available chromatograph. The multi-instrument version offers multi-detector measurement capabilities, data acquisition,...

Learn how Charged Aerosol Detection can be used for both routine and complex analyses

Thermo Fisher Scientific offers a number of resources to help you learn how charged aerosol detection can be used for both routine and complex analyses and understand more about the versatility of this novel technique.

Method transfer compliance and data integrity

Do you work in a regulated laboratory? Are you struggling with method transfer? Would you like help with your compliance and data integrity issues? If so, Thermo Fisher Scientific offers a number of resources to help.

Analysis of size distribution of a protein hydrolysate with Superdex™ 30 Increase size exclusion chromatography column

There is a growing interest in protein hydrolysates. It has been shown that short bioactive peptides can have higher nutritive value, for example, as antioxidants. In the characterization of protein hydrolysates, it is important to analyse the size...

Use of Superdex™ 200 Increase size exclusion chromatography columns for screening of mAb aggregates

Screening for mAb aggregation is important in the production of mAb. When performing aggregate analysis on mAbs there is often no issue when the aggregate level is above 1%. At lower levels, however, issues can arise in integration of the aggregate...

Understanding compliance requirements for computerized titration systems

Looking for some best practice advice with your titration methods? Working in a regulated laboratory? Would you like a better understanding of compliance and data integrity requirements? If so, this webinar is aimed at you...

Automated spraying device for reagent transfer onto TLC/HPTLC plates

The CAMAG® Derivatizer is an automated spraying device for reagent transfer onto TLC/HPTLC plates setting a new standard of reproducibility and convenience in reagent transfer onto TLC/HPTLC plates by employing a unique “micro droplet” spraying...

Fully automatic high-precision sample application

Fully automatic high-precision sample application for routine work and laboratories with high sample throughput is achievable using the CAMAG® Automatic TLC Sampler 4 (ATS 4). Watch the video to see how the productivity in your HPTLC laboratory can...

The key to reproducible results by chromatography under standardized conditions

The CAMAG® Automatic Developing Chamber 2 (ADC 2) is the key to reproducible results by chromatography under standardized conditions. Watch the video to see how improvements can be made in your HPTLC laboratory...

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