摘要
研究了在柠檬酸存在的硫酸介质中,矿石中的铋与硫脲-碘化钾-马钱子碱络合染色,用三氯甲烷在室温及100r/min条件下震荡4min萃取其络合物.络合物的最大吸收峰位于460nm处,B i(Ⅲ)含量在0～20μg范围内符合比尔定律,回归方程为Y=0.09967+0.00586X,相关系数r=0.99964.对伊犁尼勒克铜矿矿石溶液进行7次平行测量,结果表明,矿石中原矿、精矿、尾矿铋的含量分别为0.003%、0.00064%、0.0028%,RSD在0.3%～2.0%之间,摩尔吸光系数分别是5.3139×104、5.3464×104、5.3514×104,回收率在96.44%～96.74%之间,该测量方法简便易行.
Studied the presence of citric acid in the medium, and bismuth ores thiourea - potassium iodide - Brucine complex staining with Chloroform at room temperature and under the conditions of 100r/min concussion concussion 4min extraction instrument its complex. Maximum absorption peak of the complex is located at 462 nm wavelength, Bi （Ⅲ） concentration in the range of 0-20~tg Beer＇s law is obeyed, the regression equation is Y=0.09967＋0.00586X, correlation coefficient r is 0.99964. Nileke solution of copper ore to 7 parallel measurements, the results show that the ore （ore, concentrate, railings） in the bismuth content of 0.003%, 0.00064%, 0.0028%. RSD 0.3%-2.0%, and molar absorptivity is 5.3139 × 10^4, 5.3464 × 10^4, 5.3514 × 10^4, the recovery rate from 96.44% to 96.74%, and the measurement method is very simple.
出处
《伊犁师范学院学报（自然科学版）》
2011年第4期28-31,共4页
Journal of Yili Normal University：Natural Science Edition
基金
教育部留学回国人员科研启动基金资助项目(2008890)
关键词
铋
硫脲
碘化钾
马钱子碱
分光光度法
bismuth
potassium iodide
thiourea
brucine
spekctrophotometr
