Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7584152 | Food Chemistry | 2018 | 7 Pages |
Abstract
A selective and sensitive procedure for determining seven hazardous microcystins in Margarya melanioides, using tandem mass spectrometry, is presented. The product ion m/z 135.2 was selected as representative for precursor ion scanning and used to increase overall sensitivity of this shotgun method. The method was validated, and recoveries ranged from 69.3 to 87.9%, with the relative standard deviation less than 10%. Limits of detection and quantitation were less than 3.1 and 9.3â¯ng·mLâ1, respectively. A total of 60 samples were tested using this method. 38 samples were found to be contaminated with microcystins, among which there are 31 samples whose estimated daily intake (EDI) was 0-7.8 times higher than the tolerable daily intake (TDI). This method would be useful for carrying out direct, ultra-rapid quantification of microcystins in foods, and is of significant interest for environmental and food safety applications.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Shiyan Li, Yiwei Cui, Yang Wang, Zhiyuan Dai, Qing Shen,