Perchlorate in Milk

Andrea B. Kirk; Ernest E. Smith; Kang Tian; Todd A. Anderson; Purnendu K. Dasgupta

doi:10.1021/es034735q

Perchlorate in Milk

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

Environmental Toxicology

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160 Scopus citations

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

Original language	English
Pages (from-to)	4979-4981
Number of pages	3
Journal	Environmental Science and Technology
Volume	37
Issue number	21
DOIs	https://doi.org/10.1021/es034735q
State	Published - Nov 1 2003

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title = "Perchlorate in Milk",

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

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year = "2003",

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T1 - Perchlorate in Milk

AU - Kirk, Andrea B.

AU - Smith, Ernest E.

AU - Tian, Kang

AU - Anderson, Todd A.

AU - Dasgupta, Purnendu K.

PY - 2003/11/1

Y1 - 2003/11/1

N2 - 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 μg/L. The levels found ranged from 1.7 to 6.4 μg/L. An evaporated milk sample contained perchlorate at 1.1 ± 0.6 μg/L level, while we did not find detectable levels in a reconstituted powdered milk sample.

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

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Perchlorate in Milk

Abstract

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