Malonaldehyde를 이용한 유도체화에 의한 Thiocarbamide의 액체 크로마토그래피 분석법
The Liquid Chromatographic Determination of Thiocarbamide by Derivatization using Malonaldehyde
Thiocarbamide is used in photography, pharmaceutical and pesticide manufacture and in textile chemicals. It is recorded on HPV list of OECD presently. But thiocarbamide is a carcinogen and mutagen and this chemical is on the Special Health Hazard Substance List(U. S. EPA). 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. HPLC/UVD method of thiocarbamide on OSHA has a complex process and bad repetition. so superior method is needed. The aim of this study is making the method. Thiocarbamide and 1,1,3,3-tetraethoxypropane make 2-mercaptopyrimidine in mixed solvent(c. HCI : Et-OH :H20 = 1 : 1 : 8 (v/v)). Then, 2-mercaptopyrimidine is detected on HPLC/UVD. 2-mercaptopyrimidine's LDL(Low Detection Limit) is about 0.051 ppm(mg/l). Molar extinction coefficient of 2-mercaptopyrimidine was 29900 at 286nm in contrast of which thiocarbamide was 25800 at 208nm 2-Mercaptopyrimidine of more lower concentration will be detected , if use more sensitive detector as electrochemical detector(ECD)
목차
Abstract I. 서 론 II. 재료 및 방법 1. 시약 2. 기기 3. 실험방법 III. 결 과 1. 2-Mercaptopyrimidine의 U.V spectrophotometer에 의한 생성율 2. HPLC/UVD에서의 확인 3. 반응 및 생성물질의 U.V spectrum profile 4. 반응시간별 흡광도 변화 5. 혼합 용매별 2-mercaptopyrimidine의 흡광도 변화 6. GC/MSD에서의 2-mercaptopyrimidine 확인 IV. 고 찰 V. 결 론 References
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]