Reliable Analysis of the Light Ends of Petroleum Fractions Using Capillary Flow Backflushing
In this article, Roger L. Firor discusses how capillary flow technology improves the time-tested practice of backflushing in petrochemical analysis.
In this article, Roger L. Firor discusses how capillary flow technology improves the time-tested practice of backflushing in petrochemical analysis. It utilizes a purged ultimate union with virtually zero dead volume and inert connections, as well as precise midpoint pressure control, for high resolution separations. The end result is the ability to fine-tune backflush times to produce precise fraction cuts, with less maintenance and better thermal control than conventional backflush technology
Best of the Week: Food Analysis, Chemical Migration in Plastic Bottles, STEM Researcher of the Year
December 20th 2024Top articles published this week include the launch of our “From Lab to Table” content series, a Q&A interview about using liquid chromatography–high-resolution mass spectrometry (LC–HRMS) to assess chemical hazards in plastic bottles, and a piece recognizing Brett Paull for being named Tasmanian STEM Researcher of the Year.
Using LC-MS/MS to Measure Testosterone in Dried Blood Spots
December 19th 2024Testosterone measurements are typically performed using serum or plasma, but this presents several logistical challenges, especially for sample collection, storage, and transport. In a recently published article, Yehudah Gruenstein of the University of Miami explored key insights gained from dried blood spot assay validation for testosterone measurement.
Determination of Pharmaceuticals by Capillary HPLC-MS/MS (Dec 2024)
December 19th 2024This application note demonstrates the use of a compact portable capillary liquid chromatograph, the Axcend Focus LC, coupled to an Agilent Ultivo triple quadrupole mass spectrometer for quantitative analysis of pharmaceutical drugs in model aqueous samples.
