Microwave Digestion Used in Soil Total Chromium Determination / 环境与健康杂志
Journal of Environment and Health
;
(12)1992.
Artículo
en Chino
| WPRIM
| ID: wpr-545982
ABSTRACT
Objective To develop a pretreatment method with the microwave digestion for the determination of soil total chromium. Methods The nitric acid and hydrofluoric acid were added into the samples, the microwave digestion under the certain condition was conducted and then the sulfuric acid was added on the controllable electric stove. Flame atom absorption spectrophotometry or diphenylcarbohydrazide spectrophotometry was used to determine soil total chromium according to the condition. Results RSDs were from 1.20% to 11.08%. The Environmental Soil Standard test demonstrated that the results were in the guarantee value, as for ESS-1, RSD=2.57%, as for ESS-3, RSD=2.20%. Conclusion The microwave digestion is considered as a good pretreatment method for the determination of soil total chromium with the advantages of safe, rapid and accurate.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Idioma:
Chino
Revista:
Journal of Environment and Health
Año:
1992
Tipo del documento:
Artículo
Similares
MEDLINE
...
LILACS
LIS