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High Throughput Sub-4 Min Separation of Antibodies Using Size Exclusion Chromatography
February 1st 2015Gel filtration chromatography (GFC) is a powerful analytical tool in the separation of antibodies. Traditionally, GFC columns with a dimension of 7.8 mm i.d. × 30 cm are used for analytical purposes.
Automated Extraction of Organochlorine Pesticides with In-Line Florisil Cleanup
February 1st 2015Organochlorine pesticides are among the more notorious organic pollutants. Gaining wide spread attention into the latter part of the 20th century, and ultimately leading to their ban, OCPs remain with us as a legacy contaminant in the environment.
Analysis of Diacetyl and Other Vicinal Diketones (VDKs) in Alcoholic Beverages
February 1st 2015Vicinal diketones (VDKs) are naturally produced compounds in the fermentation process. The monitoring of VDK levels is of great importance as the concentration of these compounds can greatly alter the flavor of a beverage.
Simultaneous Analysis of Vitamins B1, B2, B3, and B6 in Protein Powders and Supplements
February 1st 2015B vitamins are a group of water soluble vitamins that play an important role in cell metabolism. This group consists of a number of compounds including thiamine (vitamin B1), riboflavin (vitamin B2), niacin and nicotinamide (vitamin B3), and pyridoxine and pyridoxal (vitamin B6).
A Better Way to Profile Your Ion Beam in Instrument Design for More Accurate Analysis
February 1st 2015Photonis has combined two of our superior detection and analysis technologies into a new digital ion beam profiling unit. The new Ion Beam Profiler combines a large microchannel plate (up to 120 mm) in a complete assembly with the Photonis Nocturn, a high-resolution digital CMOS low-light camera which is immune to sudden light damage.
Ruggedness of YMC Cyano-High Strength Stationary Phase Under Acidic and Basic Extremes
February 1st 2015Silica-based cyano stationary phases have historically exhibited poor stability and short column lifetime at pH extremes. This application note details an investigation of the stability of YMC's Cyano-HG (high strength) 10 ?m silica-based stationary phase, which was performed at a customer's request.
SPE and Analysis Of Organochlorine Pesticides and Inline Cleanup from Water
October 28th 2014In water samples, OCPs are monitored by the U.S. Environmental Protection Agency by various methods including methods EPA 508, EPA 608, and EPA 8081. The use of solid phase extraction (SPE) can rapidly increase both extraction efficiency and reduce lab solvent usage. By implementing the FMS TurboTrace® ABN system with its dual cartridge functionality, an in-line Florisil cartridge can be added to perform automated extract clean-up during the elution step.
Analysis of Oligopeptide Hormones at Low and High pH on EternityXT Columns
September 1st 2014Polypeptide hormones play key endocrine functions in humans. In particular, angiotensins are oligopeptide hormones, critical in the regulation of body fluids which ultimately affect blood pressure levels in individuals.
Amino Acid Analysis According to European Pharmacopoeia 8.0
September 1st 2014The European Pharmacopoeia (Ph. Eur.) defines requirements for the qualitative and quantitative composition of medicines, as well as the tests to be carried out on medicines and on substances and materials used in their production.