Determination of 19 Organochlorine Pesticides Residues in Milk Powder by GPC-GC-MS
International Journal of Nutrition and Food Sciences
Volume 7, Issue 4, July 2018, Pages: 129-133
Received: Jun. 5, 2018;
Accepted: Jun. 22, 2018;
Published: Jul. 17, 2018
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Zhaofeng Wu, China Customs Guangdong Inspection and Quarantine Technology Center, Guangzhou, China
Xiaoyan Peng, China Customs Guangdong Inspection and Quarantine Technology Center, Guangzhou, China
Sheng Chen, China Customs Guangdong Inspection and Quarantine Technology Center, Guangzhou, China
Zhanteng Zeng, China Customs Guangdong Inspection and Quarantine Technology Center, Guangzhou, China
To establish the GPC - GC - MS detection method for determination of organochlorine pesticide residues in milk powder. After simple processing samples, concentration with multi-position concentrator, and online cleaning with GPC-GC-MS, injection into the mass spectrometer for analysis. Results showed that in the linear range of 5～100 ug/L, the correlation coefficient were >0.998, and the method detection limits (MDLs) were <0.5 ug/kg. The spiked recoveries at three levels of 10, 50, 100 ug/kg were in the range of 70 ~ 95%, the relative standard deviations (RSDs) (n=6) were<10%. This method had advantages of good accuracy and precision, simple operation, rapid, and was suitable for routine analysis.
Determination of 19 Organochlorine Pesticides Residues in Milk Powder by GPC-GC-MS, International Journal of Nutrition and Food Sciences.
Vol. 7, No. 4,
2018, pp. 129-133.
Copyright © 2018 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/
) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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