DIN ISO 20279:2006
Soil quality - Extraction of thallium and determination by electrothermal atomic absorption spectrometry (ISO 20279:2005);English version of DIN ISO 20279:2006-01
- Standard No.
- DIN ISO 20279:2006
- Release Date
- 2006
- Published By
- German Institute for Standardization
- Latest
- DIN ISO 20279:2006
- Scope
- Thallium is extracted from soil by a mixture of nitric acid and hydrogen peroxide, and determined in solution by electrothermal atomic absorption spectrometry, in which discrete volumes of sample solution are dispensed into a graphite tube. By increasing the temperature of this tube stepwise, the processes of drying, thermal decomposition of the matrix and thermal dissociation into free atoms occur. The resulting absorption signal should (under optimum conditions) be a sharp symmetrical peak with a height proportional to the element concentration in solution.
DIN ISO 20279:2006 history
- 2006 DIN ISO 20279:2006 Soil quality - Extraction of thallium and determination by electrothermal atomic absorption spectrometry (ISO 20279:2005);English version of DIN ISO 20279:2006-01
