摘要
铜试剂亚铜分光光度法常被用于测定地表水中丁基黄原酸,但影响因素较多。文章就温度和共存离子对丁基黄原酸显色反应的影响进行了试验。结果表明,温度升高会导致丁基黄原酸的吸光度显著下降,共存离子Fe、Pb和Cd呈现抑制作用,而Ni和Se则基本没有抑制作用。
The butyl xanthic acid in water is usually determined by spectrophotometry with the cuprous diethyl dithiocarbamte, however, it may be interfered by some factors. The interferences from temperature and coexisting ions were studied. The results show that, higher temperature would reduce the absorbance, and the measurement would be inhibited by the coexisting ions of iron, lead, and cadmium, but no interference from nickel and selenium.
出处
《广州环境科学》
2012年第2期15-15,24,共2页
Guangzhou Environmental Science
关键词
丁基黄原酸
分光光度法
温度
共存离子
butyl xanthic acid spectrophotometry temperature coexisting ions
