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Displaying 1-4 of 4 results for Tag: Derivatization

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Determination of Acrolein and Other Process Contaminants in Beer, Wine, and Potato Chip Matrices by Liquid Chromatography-Single Quadrupole Mass Spectrometry

Instrument Type: LCMSMS

Carbonyl compounds are widely found in food products. Acrolein is the a,ß-unsaturated carbonyl compound also called prop-2-enal or acrylic aldehyde. Acrolein has a high volatility and very high reactivity.1 To evaluate risk assessment, more information on its occurrence needs to be generated. The aim of this study was to develop an in-house validated method for the determination of a wide range of carbonyl compounds to quantify these process contaminants in beer, wine, and potato chips using LC/MS.

Analysis of derivatized chlorinated acetic acids using a Thermo Scientific TRACE TR-5 column

Instrument Type: GC

The analysis demonstrates the advantages of using the Thermo Scientific TRACE GC Ultra with the Thermo Scientific TRACE TR-5 0.25 μm column for the separation of derivatized chlorinated acetic acids using FID detection.

An improved separation of derivatized amino acids using a Thermo Scientific TRACE TR-5 GC column

Instrument Type: GC

This method shows the advantages of using the Thermo Scientific TRACE GC Ultra with the Thermo Scientific TRACE TR-5 0.25 µm column for the separation of derivatized amino acids with FID detection.

OSHA Method 41 for improved analysis of Diethylamine using the Thermo Scientific Acclaim Mixed-Mode HILIC-1 HPLC column

Instrument Type: HPLC

As shown here, the Thermo Scientific Acclaim Mixed-Mode HILIC-1 can analyze the diethylamine derivative under the normal-phase conditions of OSHA Method 41. In this case, 4-chloro-7-nitro-1,2,3-benzoxadiazole (NBD-chloride) reacts with amines in the trap, to produce a highly-colored, fluorescent derivative. The unreacted reagent and a trace of monoethylamine eluted at 2.3 and 4.4 minutes, respectively, and neither interferes with the analyte of interest. Compared to the existing OSHA method, the new column provides improved peak shape and faster analysis time.