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  • 한국과학기술정보연구원(KISTI) 서울분원 대회의실(별관 3층)
  • 2024년 07월 03일(수) 13:30
 

  • P-ISSN1225-0163
  • E-ISSN2288-8985
  • SCOPUS, ESCI, KCI

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  • P-ISSN 1225-0163
  • E-ISSN 2288-8985

숙련도시험을 위한 소변 중 N-메틸아세트아미드 표준시료 검증

Validation of urinary N-methylacetamide reference material for proficiency test

분석과학 / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2014, v.27 no.6, pp.339-346
https://doi.org/10.5806/AST.2014.27.5.339
이미영 (한국산업안전보건공단 산업안전보건연구원)
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초록

근로자 건강진단 실무지침 상의 필수 검사항목 항목 중, N-메틸아세트아미드의 소변 표준시료를 제조하여 그 신뢰도를 확인하고자 하였다. DB-624 컬럼을 사용한 GC/MSD 분석 방법에 의해 기존분석 컬럼보다 우수한 분리능과 선택성으로 N-메틸아세트아미드를 분석하였다. -60, -20, 5, 25 oC에서 5-50 mg/L의 농도 범위의 소변 중 N-메틸아세트아미드의 안정성을 6개월 보관 시점까지 검토한 결과 모든 보관 조건에서 안정하였으며, 각 시료에 대한 균질성 검사 결과도 양호하였다. 이상의 결과로부터 유리형 NMAC를 첨가하는 방법으로 제조한 소변 중 NMAC 표준시료가 분석정도관리용으로 실용화하기에 적합한 균질성과 장기간 보관 시의 안정성을 모두 만족시킴을 확인하였고, 2008년부터 분석정도관리표준시료로 활용하였다.

keywords
reference material, urinary N-methylacetamide, proficiency test, biological monitoring

Abstract

The author assessed the availability of urine reference material for proficiency test provided forlaboratories in occupational health. N-methylacetamide is the biomarker of exposure to N,N-dimethyl acetamide,which was used as the substitute for hepatotoxic N,N-dimethylformamide (DMF). N-methylacetamide (NMAC)urine samples of 3 different levels covering the 0.2~2 times of the exposure limit were tested. Stability testup to 180 days (0, 7, 30, 60, 180 days) at 4 different temperatures (-60, -20, 5, 25 oC) and homogeneity testwere performed for these samples. New analytical condition by GC/MSD using SIM mode (m/z 58, 59) andDB-624 column was investigated for better selectivity, sensitivity and resolution. Urinary NMAC samplesshowed good homogeneity for 3 levels. These samples also showed good stability up to 180 days. The dataof stability and homogeneity of urinary DMAC confirmed the basis of including this item into Korean proficiencytest for occupational health laboratories since 2008.

keywords
reference material, urinary N-methylacetamide, proficiency test, biological monitoring


참고문헌

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