Perchlorate in milk

被引：149

作者：

Kirk, AB

Smith, EE

Tian, K

Anderson, TA

Dasgupta, PK

机构：

[1] Texas Tech Univ, Inst Environm & Human Hlth, Lubbock, TX 79409 USA

[2] Texas Tech Univ, Dept Chem & Biochem, Lubbock, TX 79409 USA

来源：

ENVIRONMENTAL SCIENCE & TECHNOLOGY | 2003年 / 37卷 / 21期

关键词：

D O I：

10.1021/es034735q

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Perchlorate was unambiguously detected by ion chromatography-suppressed conductivity (IC-CD) and/or ion chromatography-electrospray mass spectrometry (IC-MS) in seven of seven supermarket milk samples bought randomly in Lubbock, TX. Quantitation by IC-MS and IC-suppressed conductivity detection in conjunction with a preconcentration-preelution method provided comparable results. With a sample cleanup procedure that involved protein removal by ethanol and sequential passage though activated alumina and C-18 silica, the limit of detection for perchlorate in milk was 0.5 mug/L. The levels found ranged from 1.7 to 6.4 mug/L. An evaporated milk sample contained perchlorate at 1.1 +/- 0.6 mug/L level, while we did not find detectable levels in a reconstituted powdered milk sample.

引用

页码：4979 / 4981

页数：3

共 13 条

[1]

*CAL DEP HLTH SERV, 2002, PERCHL DRINK WAT ACT

[2] Predicting fetal perchlorate dose and inhibition of iodide kinetics during gestation: A physiologically-based pharmacokinetic analysis of perchlorate and iodide kinetics in the rat [J].