ISO 2992:1974 工业用硫酸铵.铁含量的测定.2,2'-联吡啶光度法

标准编号：ISO 2992:1974

中文名称：工业用硫酸铵.铁含量的测定.2,2'-联吡啶光度法

英文名称：Ammonium sulphate for industrial use — Determination of iron content — 2,2'- Bipyridyl photometric method

发布日期：1974-04

标准范围

适用于铁含量等于或大于0.0001%（m/m）的情况。该反应以氯化羟胺还原铁（III）为基础。在缓冲介质（pH值在4.5和6之间）中形成铁（II）和2,2'-联吡啶之间的络合物。在约522nm波长下对有色络合物进行光度测量。也得到了IUPAC的批准。

Applicable to Fe contents of equal to or more than 0.0001 % (m/m). The reaction bases on the reduction of iron(III) by hydroxylammonium chloride. Formation of the complex between iron(II) and 2,2'-dipyridyl in a buffered medium (pH value between 4.5 and 6). Photometric measurement of the coloured complex at a wavelength of about 522 nm. Has also been approved by the IUPAC.

标准预览图