质谱法证实速溶咖啡中存在N-亚硝基吡咯烷。

Mass spectrometric confirmation of the presence of N-nitrosopyrrolidine in instant coffee.

作者信息

Sen N P, Seaman S W, Weber D

机构信息

Food Research Division, Bureau of Chemical Safety, Ottawa, Ontario, Canada.

出版信息

J Assoc Off Anal Chem. 1990 Mar-Apr;73(2):325-7.

Abstract

Traces of N-nitrosopyrrolidine (NPYR) may occur in some samples of both instant coffee and fine-ground roasted coffee. The identity of NPYR in 2 samples of instant coffee was confirmed by mass spectrometry as well as by liquid chromatography-thermal energy analysis. A 2-step cleanup procedure, involving fractionation on basic alumina followed by gradient elution on reverse-phase C18 cartridge, is described that allows full-scan mass spectrometric confirmation of NPYR in tested samples.

摘要

速溶咖啡和细磨烘焙咖啡的某些样品中可能会出现N-亚硝基吡咯烷（NPYR）的痕迹。通过质谱以及液相色谱-热能分析确认了2个速溶咖啡样品中NPYR的成分。本文描述了一种两步净化程序，该程序包括在碱性氧化铝上进行分馏，然后在反相C18柱上进行梯度洗脱，可对测试样品中的NPYR进行全扫描质谱确认。

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