The official analytical method for the analysis of harmful heavy metals in Meju, distributed in Korea, employs a strong acid to decompose the organic components. This analysis is time consuming and harmful to the users and/or the environment. This study aimed to develop a new pre-treatment technology using laser ablation, to rapidly analyze harmful heavy metals without using strong acids. The results obtained from this method were validated by the National Institute of Food and Drug Safety Evaluation guideline (NIFDS, 2016). Moreover, a comparison of the two methods showed that the analytical time for 55 Meju samples was shortened by 96% or more in the new method. The results showed no significant difference in the recovery ranging from 90–120%. The proposed method proved suitable for detecting harmful heavy metals in Meju.

ABSTRACT
재료 및 방법
    시료
    시약 및 초자
    ICP-MS를 이용한 카드뮴, 납 분석
    fs LA-ICP-MS를 이용한 카드뮴, 납 분석
    유효성 검증
결과 및 고찰
    fs LA-ICP-MS를 이용한 분석법의 유효성 검증
    메주의 중금속(카드뮴, 납) 농도 분석
    기존 분석법과의 비교
cknowledgement
국문요약
Conflict of interests
ORCID
References

• 신희창(국립농산물품질관리원 시험연구소 안전성분석과, 충북대학교 식품생명공학과) | Hee-Chang Shin (Division of Safety Analysis, Experiment&Research Institute, National Agricultural Products Quality Management Service, Department of Food Science and Biotechnology, Chungbuk National University) Corresponding Author
• 최지혜(국립농산물품질관리원 시험연구소 안전성분석과) | Ji-Hye Choi (Division of Safety Analysis, Experiment&Research Institute, National Agricultural Products Quality Management Service, GimCheon, Korea)
• 김용경(국립농산물품질관리원 시험연구소 안전성분석과) | Yong-Kyoung Kim (Division of Safety Analysis, Experiment&Research Institute, National Agricultural Products Quality Management Service, GimCheon, Korea)
• 김대중(국립농산물품질관리원 시험연구소 안전성분석과) | Dae-Jung Kim (Division of Safety Analysis, Experiment&Research Institute, National Agricultural Products Quality Management Service, GimCheon, Korea)
• 안재민(국립농산물품질관리원 시험연구소 안전성분석과) | Jae-Min An (Division of Safety Analysis, Experiment&Research Institute, National Agricultural Products Quality Management Service, GimCheon, Korea)
• 김성연(국립농산물품질관리원 시험연구소 안전성분석과) | Sung-Youn Kim (Division of Safety Analysis, Experiment&Research Institute, National Agricultural Products Quality Management Service, GimCheon, Korea)