期刊论文详细信息
Journal of the Brazilian Chemical Society
Cloud point extraction spectrophotometric determination of trace quantities of bismuth in urine
Madrakian, Tayyebeh1  Siampour, Hajar1  University, Hamadan1  Afkhami, Abbas1 
关键词: cloud point extraction;    bismuth;    bromopyrogallol red;    spectrophotometry;    triton X-114;   
DOI  :  10.1590/S0103-50532006000400024
学科分类:化学(综合)
来源: SciELO
PDF
【 摘 要 】

A cloud point extraction process using the nonionic surfactant Triton X-114 to extract bismuth from aqueous solutions was investigated. The method is based on the complexation reaction of Bi(III) with bromopyrogallol red (BPR) and micelle-mediated extraction of the complex. The optimal extraction and reaction conditions (e.g., pH, reagent concentration, effect of time) were studied, and the analytical characteristics of the method (e.g., limit of detection, linear range) were obtained. Linearity was obeyed in the range of 4.60–120.0 ng mL-1 of Bi(III) ion. The detection limit of the method was 2.0 ng mL-1 of Bi(III) ion. The interference effect of some anions and cations was also tested. The method was applied to the determination of bismuth in human urine sample.

【 授权许可】

Unknown   

【 预 览 】
附件列表
Files Size Format View
RO201912050579976ZK.pdf 118KB PDF download
  文献评价指标  
  下载次数:12次 浏览次数:13次