Tan Guo-xin
2003
Citations
0
Influential Citations
1
Citations
Journal
Journal of Analytical Science
Abstract
The color reaction of sulfide with p-diethylamino phenylamine to form ethyl thionine has been studied. The addition sodium dodecyl sulfonate could enhance the sensitivity of the reaction. The maximum absorption of the association compound was at 675 nm and the molar absorptivity was 4.25×10~4 L·mol~(-1)·cm~(-1). The Beer's law was obeyed in the range of 0~0.8 μg/mL. The present method has been applied to the determination of sulfide in natural water with satisfactory results.