Journal of the Korean Chemical Society (대한화학회지)
- Volume 40 Issue 2
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- Pages.109-116
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- 1996
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- 1017-2548(pISSN)
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- 2234-8530(eISSN)
Matrix Modification for Atomic Absorption Spectrophotometric Determination of Volatile Elements (Ⅱ). Determination of Trace Germanium by Electrothermal Atomization
휘발성 원소들의 원자흡수 분광분석을 위한 매트릭스 개선에 관한 연구(제2보). 전열 원자화에 의한 흔적량 게르마늄의 정량
- Choi, Ho Sung (Department of Chemistry Korea University) ;
- Choi, Jong Moon (Department of Chemistry Korea University) ;
- Kim, Young Sang (Department of Chemistry Korea University)
- Published : 19960200
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44 13
Abstract
A matrix modification was studied for the determination of trace germanium in mineral waters by electrothermal atomic absorption spectrophotometry (ET-AAS). For this, the type and quantity of modifier as well as the use of auxiliary modifier were investigated to realize the efficient modification. Germanium suffers from low sensitivity and poor reproducibility in ET-AAS determination because of the premature loss of germanium via volatile germanium monoxide formation when heated in the presence of carbon. Therefore, the addition of a matrix modifier is necessary to stablize the germanium, thermally and chemically. By the addition of palladium (10
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