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. 2003 Nov 1;37(21):4979-81.
doi: 10.1021/es034735q.

Perchlorate in milk

Andrea B Kirk  1 , Ernest E Smith, Kang Tian, Todd A Anderson, Purnendu K Dasgupta
Affiliations

Perchlorate in milk

Andrea B Kirk et al. Environ Sci Technol. .

Abstract

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 microg/L. The levels found ranged from 1.7 to 6.4 microg/L. An evaporated milk sample contained perchlorate at 1.1 +/- 0.6 microg/L level, while we did not find detectable levels in a reconstituted powdered milk sample.

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Comment in

  • Perchlorate found in milk in Texas.
    Erickson BE. Erickson BE. Environ Sci Technol. 2003 Nov 1;37(21):377A-378A. doi: 10.1021/es0326118. Environ Sci Technol. 2003. PMID: 14620794 No abstract available.

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