摘要
本文分别确定了高铁、亚铁与磺基水杨酸、硫氰酸盐、α·α′—联吡啶、1.10—菲绕林、二乙胺苯酚—Tritonx—100和铬天青S—溴化十六烷基三甲基胺等生色体系的吸收曲线和摩尔吸光系数。同时,研究了天然水中高铁与亚铁同时存在时,各种方法的适用情况,并分析了各种方法的优缺点,经过比较,使用1.10—菲绕啉为显色剂,较适用于测定同时存在于天然水中的高铁与亚铁含量。
In this paper, the absorption line and the molar absorptivites coefficient of the colour complexes of Fe^(3+) and Fe^(2+) with sulfosalicylic acid. patassium thiocyanate, α. α'-Dipyridyl, 1.10-phenanthroline, Br-PADAP-Tritonx—100 and CAS—CTAB are determined seperately. In the simultaneous, the presence of Fe^(3+) and Fe^(2+) in natural water, the suitabilities of the determination methods are studied in detail, the comparison between the merits and the demerits of the methods shows that the method with 1.10—phenanthroline as coloured reagent is suited to the determination of Fe^(3+) and Fe^(2+) in natural water.
出处
《华东地质学院学报》
1989年第2期87-91,共5页
Journal of East China Geological Institute
关键词
水
高铁
亚铁
水分析
天然水
natrual
ferril iron
ferrous iron
determination
