摘要
催化动力学法测定微量Co^(2+)已有报道,方法灵敏度一般在10^(-6)～10^(-10g)数量级,多数用于测定水、血液和高纯物质中的Co^(2+),而测定中药內的痕量CO^(2+)还未见报道。本文研究了氨水介质中Co^(2+)
Go(Ⅱ) in ammonium hydroxide can accelerate the decolorizing indicative reaction of diphenylcarbazone being oxidized by air. A new high-selective method for determining trace Co(Ⅱ) is described. The sensitivity of the method is 2×10-12g/mL, In the range of Cobalt 0-0.11μg/25.7mL the method was used to determine trace Co(Ⅱ) in Chinese medicinal herb with satisfactory results.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1989年第2期200-202,共3页
Chemical Journal of Chinese Universities
关键词
钴
二苯偶氮酰肼
动力学光度法
Catalytic decolorization, Spectrophotometry, Dlphenylcarbazone, Gobalt(Ⅱ)
