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Determination of bromate in bottled mineral water in Korea

먹는 샘물 중 bromate 분석 및 분포 특성

  • Ahn, Hye-Sil (Drinking Water Research Division, National Institute of Environmental Research) ;
  • Kim, Hyun-Koo (Drinking Water Research Division, National Institute of Environmental Research) ;
  • Park, Ju-Hyun (Drinking Water Research Division, National Institute of Environmental Research) ;
  • Jung, Dong-Il (Drinking Water Research Division, National Institute of Environmental Research) ;
  • Kim, Tae-Seung (Drinking Water Research Division, National Institute of Environmental Research)
  • 안혜실 (국립환경과학원 물환경연구부 먹는물연구과) ;
  • 김현구 (국립환경과학원 물환경연구부 먹는물연구과) ;
  • 박주현 (국립환경과학원 물환경연구부 먹는물연구과) ;
  • 정동일 (국립환경과학원 물환경연구부 먹는물연구과) ;
  • 김태승 (국립환경과학원 물환경연구부 먹는물연구과)
  • Received : 2010.04.01
  • Accepted : 2010.04.05
  • Published : 2010.04.25

Abstract

This study was performed to compare international analytical methods of bromate and applied to determine bromate in bottled mineral water in Korea. Bromate in bottled mineral water was eluted by 10~50 mM potassium hydroxide (KOH) and determined by ion chromatograph-suppressed conductivity detector (ICCD). Sample was purified with on guard Ba-, Ag- and H-cartridges and $0.2\;{\mu}m$ membrane filter. The method detection limit (MDL) and the limit of quantitation (LOQ) of bromate were 0.1 and $0.5\;{\mu}g/L$, respectively. The calibration curve showed good lineality above 0.9998 in the ranges of the $0.5\sim40\;{\mu}g/L$. Bromate from 33 samples among total 157 bottled mineral water samples was detected in the concentration range of $0.5\sim6.5\;{\mu}g/L$. The detected concentrations were within bottled mineral water quality criteria ($10\;{\mu}g/L$) in Korea.

Keywords

bromate;IC-CD;bottled mineral water

Acknowledgement

Supported by : 국립환경과학원

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