井冈山大学学报（自然科学版）2016，Vol.37Issue(3)：30-34,5.DOI:10.3969/j.issn.1674-8085.2016.03.007
核固红-亮绿双指示剂催化光度法测定痕量Pb（Ⅱ）
DUAL-INDICATOR CATALYTIC SPECTROPHOTOMETRIC DETERMINATION OF TRACE LEAD(Ⅱ) WITH NUCLEAR FAST RED-BRILLIANT GREEN SYSTEM
沈淑君1
作者信息
- 1. 漳州职业技术学院食品与生物工程系，福建，漳州 363000
- 折叠
摘要
Abstract
Lead (Ⅱ) was determined by dual-indicator catalytic spectrophotometric method which was based on the lead (Ⅱ) catalyzing oxidation of nuclear fast red (NFR) and brilliant green by potassium bromate in the sulfuric acid medium. A new catalytic spectrophotometric method for the determination of trace lead (Ⅱ) was established by the absorbance system at 455 and 595 nm. The linear range of the determination was 0.025~2.0μg/25mL, the detection limit for lead (Ⅱ) was 9.6×10-11 g/mL. It is a highly sensitive and effective method for the determination of trace lead (Ⅱ) in water and soil samples.关键词
光度法/核固红/亮绿/双指示剂/铅Key words
catalytic spectrophotometry/nuclear fast red/brilliant green/dual-indicator/lead分类
化学化工引用本文复制引用
沈淑君..核固红-亮绿双指示剂催化光度法测定痕量Pb（Ⅱ）[J].井冈山大学学报（自然科学版）,2016,37(3):30-34,5.
