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KMID : 0385520120250060435
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Analytical Science & Technology
2012 Volume.25 No. 6 p.435 ~ p.440
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Determination of perchlorate in the Gum-River surface water by LC-ESI-MS/MS
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Lee Young-Joon
Lee Jun-Bae
Hong Seon-Hwa
Kim Hyun-Ji
Shin Ho-Sang
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Abstract
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A liquid chromatography-electrospray ionization-tandem mass spectrometry method (LC-ESI-MS/MS) was used for determining perchlorate in the Gum-River surface water. Sample was directly injected into LCESI-MS/MS after the filtrations using PTFE filter paper. The coefficient of variation of perchlorate was less than 3% and the limit of quantification was 0.17 μg/L. Water samples were collected from thirty-five basins of Gum-River on February, April and June 2012, respectively. As a result, perchlorate was detected in the concentration range of 0.23-3.73 μg/L (mean 0.20 μg/L) in the frequency of 15% in general surface water and in the concentration range of 0.36-25.10 μg/L (mean 1.69 μg/L) in the frequency of 36% in surface water samples near industry area.
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KEYWORD
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LC-ESI-MS/MS, perchlorate, surface water, trace analysis
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