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罗丹明B-过氧乙酸-氢氧化钠化学发光法测定痕量硫
Determination of trace sulfide with rhodamine B-peracetic acid-sodium hydroxide system by chemiluminescence method
【摘要】 基于硫离子对罗丹明B 过氧乙酸 NaOH化学发光有较强的增敏作用,建立了流动注射化学发光增强法测定痕量硫的新方法。该法的线性范围为3.0×10-8~8.0×10-7g/mL,检出限为3.5ng/mL,相对标准偏差为2.2%(1.0×10-7g/mLS2-,n=11)。此法已用于环境水样中痕量硫的测定。
【Abstract】 A chemiluminescence enhancement method for the determination of trace sulfide based on RBCH3CO3HNaOHS2- system was established. The linear range for S2- was 3.0×10-8~8.0×10-7 g/mL with the detection limit of 3.5 ng/mL. The relative standard deviation (n=11) was 2.2% for 1.0×10-7 g/mL S2-. The method was applied satisfactorily to the determination of S2- in environmental water samples.
【基金】 安徽师范大学校青年基金资助课题(98XQL32)
- 【文献出处】 分析试验室 ,Analytical Laboratory , 编辑部邮箱 ,2003年04期
- 【分类号】O657.32
- 【被引频次】15
- 【下载频次】164