The internal standard method using ion chromatography combined with tandem mass spectrometry (IC-MS/MS) for quantifying perchlorate in different types of food was established. Because the presence of ions and other biomolecules in matrices usually interrupts accurate determination of perchlorate, it is necessary to develop efficient, reproducible method to determine perchlorate concentrations in food. In this study, the internal standard method was compared with the external standard method to determine perchlorate concentrations in standard samples. The obtained method detection limit (MDL) for perchlorate was 0.005 μg/L for bottled water, 0.12 μg/L for milk, 0.27 μg/kg for rice, 0.16 μg/kg for vegetables, and 0.07 μg/kg for seaweed, respectively. The limit of quantitation (LOQ) was calculated by multiplying the MDL by 7. The recoveries of perchlorate from food samples spiked with perchlorate ranged from 98 to 105% and their percent relative standard deviation (%RSD) levels were <20%. This method was successfully applied for the quantitative determination of perchlorate in various kinds of food.
목차
Abstract 서론 재료 및 방법 실험재료 표준용액 조제 생수 시료의 전처리 주류시료의 전처리 우유 및 분유 시료의 전처리 곡물, 채소 및 해조류 시료의 전처리 MDL과 LOQ 산출 회수율 측정 결과 및 고찰 내부표준물질 적용 유무에 따른 표준용액의 검량선 비교 식품 시료에 대한 MDL과 LOQ 산출 결과 회수율 측정 결과 요약 감사의 글 문헌
키워드
perchlorateIC-MS/MSinternal standard method
저자
양민준 [ Minjune Yang | 육군3사관학교 화학환경과학과 ]
김종성 [ Jongsung Kim | 육군3사관학교 화학환경과학과 ]
한종훈 [ Jonghun Han | 육군3사관학교 화학환경과학과 ]
허남국 [ Namguk Her | 육군3사관학교 화학환경과학과 ]
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