In the first GC columns, gas chromatography phases were simply coated onto the column. This was mostly the case with packed columns, but also the same with the very first capillary columns. Injecting water onto these phases dissolved the phase and caused the phase to elute from the columns.
Fasha Mahjoor is the CEO of global separations company, Phenomenex. SelectScience® spoke to Fasha to ask him about the secrets to his success. Here are his top five tips.
Last month, Phenomenex hosted the SoCal Dietary Supplements Chromatography Forum—an all-day assembly co-sponsored by Alkemist Laboratories and US Pharmacopeia (USP) to discuss “the need and approach to modernizing USP dietary supplement monographs,” particularly those based upon chromatography.
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There are several critical characteristics to take into consideration when choosing the appropriate organic solvent to use in liquid chromatography. For example, high viscosity solvents may produce backpressures that are too high for the HPLC system used.
Whether it be for a job interview or medical diagnosis, most of us have found ourselves in the vulnerable position of peeing into a cup. And though it may feel invasive or embarrassing, urine tests are remarkably helpful to doctors, courts, and hiring managers alike.
Hydrophilic interaction liquid chromatography (HILIC) is a chromatographic mode used mainly for the separation of polar compounds that are too hydrophilic to be retained in a reversed phase column.
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The Humanity in Science Award was created in 2015 to recognize outstanding developments in science that could change human lives for the better. There were many runners-up who did (and do!) amazing things for humanity. Recently, The Analytical Scientist sat down with each of them to catch up, and find out how their ventures have progressed in the last 12 months.
In the spirit of frugality, process chromatographers often want to save and store their media for future use. There are steps one can take to store bulk resins for short term and long term use, though it’s worth noting that the media will not last forever.