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.
Guest Author: Senior Scientist, Seyed Sadjadi. Congratulations! You are the proud new owner of a small stainless-steel tube packed with white sand, which will bring you fabulous results…if it lasts Continue Reading
Senior Field Application Scientist Scott Krepich answers your questions on UHPLC column selection and shares industry-specific tips In this free webinar, Scott Krepich, Senior Field Application Scientist, Phenomenex Inc., gave Continue Reading
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.
You’ve worked so hard crafting the perfect costume, decorating your home, and sneaking chocolate from your kids, we decided to treat you to the best technical guides this Halloween.
β-Gone β-Glucuronidase Removal 96-well plates and tubes are designed to target and remove β-glucuronidase from hydrolyzed urine samples without requiring additional time or method development. In a single step and in less than 1 minute, your hydrolyzed samples are ready for analysis.
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.
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.