- 분필중의 중금속에 대한 연구
- ㆍ 저자명
- Lee. Sang-Bong,Choi. Moo-Ryong
- ㆍ 간행물명
- 한국환경위생학회지
- ㆍ 권/호정보
- 1987년|13권 1호|pp.59-62 (4 pages)
- ㆍ 발행정보
- 한국환경보건학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
This study was carried out to determine the content of heavy metals in chalks. Samples were collected from 5 manufacturing companies of chalk. The content of lead and cadmium were analyzed by flame atomic absorption spectrophotometer. The results obtained were as follows: 1. The average content of lead was 22.0 ppm, and the range 6.4 - 50.9 ppm. 2. The average content and the range were 4.1 ppm and 2.8 - 4.8 ppm respectively.