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In our November/December issue:
COLUMNS
LC TROUBLESHOOTING
Sample Diluent Effects
The sample solvent can have a big impact on peak shape in both reversed-phase and HILIC separations, especially when large volumes are injected. Diluting the sample with weak solvent can be an effective solution to mitigate this problem, but we have to be careful to not lose analytes of interest to precipitation or phase separation. Read more >>
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GC CONNECTIONS
Essential GC Accessories
Most manufacturers ship gas chromatographs with a small collection of consumable parts and accessories, such as extra ferrules, inlet liners, or septa, and a few instrument-specific tools. In earlier times, some convenience items might have been included as well, like a bubble flow meter or a small set of tools, but now it's rare to find such things in the shipping boxes. In this edition of "GC Connections", John Hinshaw lists a number of essential items that should be on hand in every GC laboratory, their function, and how to use them effectively.
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THE ESSENTIALS
What a GC–MS Tune Report Can Tell You
A tune report is invaluable because it indicates how well the instrument is operating, and is an essential tool when troubleshooting is required.
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Application Note
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PEER-REVIEWED ARTICLES
Determining Size-Variants in Bispecific mAbs Using SE-UHPLC
The versatile size-exclusion ultrahigh-performance liquid chromatography (SE-UHPLC) platform method described here provides superior separation for bispecific monoclonal antibody formats compared to a previous method.
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If you would like to submit an article to LCGC, contact Alasdair Matheson, Editor-in-Chief - amatheson@mmhgroup.com
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