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http://dx.doi.org/10.5806/AST.2010.23.2.155

Determination of bromate in bottled mineral water in Korea  

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)
Publication Information
Analytical Science and Technology / v.23, no.2, 2010 , pp. 155-160 More about this Journal
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;
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