Earticle

초록

영어

Helium is widely utilized colorless and odorless inert gas, which poses a risk of hypoxia-induced asphyxiation when encountered in high concentrations, as it diminishes the partial pressure of oxygen during respiration. Accurate detection of helium from autopsy sample is essential for forensic investigations to ascertain the cause of death in suspected cases of helium asphyxiation. Conventionally, Gas Chromatography with a Thermal Conductivity Detector (GC-TCD) is employed for headspace gas analysis of autopsy samples. Nonetheless, the efficacy of this method is often compromised by helium's low reactivity and the minimal residual presence in samples, further complicated by hydrogen interference resulting from putrefaction. This study introduces a novel preprocessing technique that utilizes an electric arc to initiate a reaction with oxygen, effectively eliminating hydrogen from the headspace gas and thus enhancing the detection of helium. Experimental validation revealed that a 5-minute preprocessing period could remove 95% of hydrogen, while a 10-minute treatment achieved a 97% reduction. The successful detection of helium in putrefied autopsy samples underscores the effectiveness of this method, offering a promising approach to improve helium detection in forensic contexts.

목차

Abstract
Ⅰ. 서론
Ⅱ. 사례 보고
Ⅲ. 재료 및 방법
Ⅳ. 결과 및 고찰
Ⅴ. 결론
Ⅶ. 참고문헌

키워드

저자

• 박치현 [ Chihyun Park | 국립과학수사연구원 화학과 감정관 ]
• 박우용 [ Wooyong Park | 국립과학수사연구원 화학과 감정관 ] Corresponding Author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국법과학회지 [Korean Journal of Forensic Science]

• 간기

  반년간

• pISSN

  1598-0715

• 수록기간

  2000~2026

• 등재여부

  KCI 등재

• 십진분류

  KDC 367 DDC 347