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The Application Notebook-02-01-2015

The Application Notebook

Automated Extraction of Organochlorine Pesticides with In-Line Florisil Cleanup

February 01, 2015

Environmental

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Organochlorine 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 01, 2015

Food & Beverage

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Vicinal 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 01, 2015

Food & Beverage

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B 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).

Separation of Lactulose and Epilactose

February 01, 2015

Food & Beverage

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Lactulose, a semi-synthetic disaccharide, is a useful indicator for heat induced modifications in milk. Lactulose can be derived from lactose by alkaline isomerization or enzymatic transgalactosylation of fructose.

A Better Way to Profile Your Ion Beam in Instrument Design for More Accurate Analysis

February 01, 2015

General

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Photonis 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 01, 2015

General

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Silica-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.