摘要
报道了在曲通Ｘ－１００存在下，含有０．１０ｍｏｌ／Ｌ硫酸溶液中的铁（Ⅲ）与结晶紫和硫氰酸钾形成可溶性离子缔合物，该缔合物的表观摩尔吸光系数为１．０６×１０６Ｌ·ｍｏｌ－１ｃｍ－１，本显色体系铁（Ⅲ）的浓度在０．００８～０．０９２ｍｇ·Ｌ－１范围内符合比耳定率。本法可快速测定环境水样中痕量铁（Ⅲ）。
In the presence of triton X 100 and 0.10 mol·L -1 sulfuric acid medium, Fe(Ⅲ), crystal violet and potassium thiocyanate form soluble ion association complex. Its apparent absorptivity is 1.06×10 -6 L·mol -1 ·cm -1 and Beer's law is obeyed in the rang of 0.008￣0.092 mg·L -1 of Fe(Ⅲ). This method has been applied to the determination of trace Fe(Ⅲ) in environmental water.
出处
《化学世界》
CAS
CSCD
1999年第2期101-104,共4页
Chemical World
