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  • Quantification of short chain amines in aqueous matrices using liquid chromatography electrospray ionization tandem mass spectrometry.

Quantification of short chain amines in aqueous matrices using liquid chromatography electrospray ionization tandem mass spectrometry.

Journal of chromatography. A (2016-12-21)
Jyrki Viidanoja
ABSTRACT

A new liquid chromatography-electrospray ionization-tandem Mass Spectrometry (LC-ESI-MS/MS) method was developed for the determination of more than 20 C1-C6 alkyl and alkanolamines in aqueous matrices. The method employs Hydrophilic Interaction Liquid Chromatography Multiple Reaction Monitoring (HILIC-MRM) with a ZIC-pHILIC column and four stable isotope labeled amines as internal standards for signal normalization and quantification of the amines. The method was validated using a refinery process water sample that was obtained from a cooling cycle of crude oil distillation. The averaged within run precision, between run precision and accuracy were generally within 2-10%, 1-9% and 80-120%, respectively, depending on the analyte and concentration level. Selected aqueous process samples were analyzed with the method.

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Sigma-Aldrich
1-Methylimidazole-d6, 98 atom % D
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Propylamine hydrochloride, ≥99%
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2-Methylimidazole, 99%
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4(5)-Methylimidazole, 98%
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Sigma-Aldrich
Cyclohexylamine, ReagentPlus®, ≥99.9%
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tert-Butylamine hydrochloride, ≥98.0% (AT)
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Milli-Q
LC-Pak® Polisher, Placed at the point of dispense of Milli-Q® IQ/EQ 7 series water systems. Suitable for HPLC, UHPLC, LC-MS and LC-MS/MS analyses.
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0.2 mL
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N-Methylpropylamine, 96%
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Dimethylamine hydrochloride, 99%
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