Thiourea is used in photography, pharmaceutical and pesticide manufacture and in textile chemicals. It is recorded on High Product Volume list of Organization for Economic Cooperation and Development presently. But thiourea is a carcinogen and mutagen and this chemical is on the Special Health Hazard Substance List(U. S. Environmental Protection Agency). It has been shown to cause thyroid, liver and other cancers in animals. Exposure can damage the bone marrow causing reduced red blood cell, white cells and reduced platelets. Repeated exposure can cause goiter and causes reduced thyroid hormone. High Performance Liquid Chromatography/Ultra Violet Detector method of thiourea on Occupational Safety and Health Administration has a complex process and bad repetition. so superior method is needed. The aim of this study is making the method. thiourea and 1 ,1,3,3-tetraethoxypropane make 2-mercaptopyrimidine in mixed solvent(c. HCI : ethanol : H20 = 1:1:8 (v/v)). then, 2-mercaptopyrimidine is detected on Gas Chromatography/Flame Ionization Detector but thiourea is not. 2-mercaptopyrimidine's Low Detection Limit is about 100ppm(mg/l).
목차
I. 서론 II. 실험 방법 1. 시약 및 기기 2. 실험방법 III. 결과 1. 2-Mercaptopyrimidine의 생성율 2. U.V spectrum profile 3. 혼합 용매별 흡광도 변화 4. 반응시간별 흡광도 변화 5. GC/MSD에서의 2-mercaptopyrimidine IV. 고찰 V. 결론 Reference
본 학회는 품질, 환경 및 안전보건 경영 및 평가와 관련된 실무, 이론 및 정책을 연구 개발하고 회원 상호간 정보와 지식을 교환 보급하며 친목을 도모함으로써 학문의 발전과 기업경영에 기여할 수 있는 품질, 환경 및 안전 보건 경영 시스템을 확대하여 국가의 산업경쟁력 확보에 공헌함을 목적으로 한다.
간행물
간행물명
한국EHS평가학회지 [KOREAN JOURANL OF EHS ASSESSMENT ; ENVIRONMENT HEALTH SAFETY]