ISO 6685-1982 工业用化学品 测定铁含量的一般方法 1,10-菲罗啉分光光度法

标准号：ISO 6685-1982
中文标准名称：工业用化学品 测定铁含量的一般方法 1,10-菲罗啉分光光度法
英文标准名称：Chemical products for industrial use; General method for determination of iron content; 1,10-Phenanthroline spectrophotometric method
标准类型：G04;N33
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：G04;N33
国际标准分类号：71.040.50
适用范围：All the iron(III) present in the test solution is reduced to iron(II) with ascorbic acid. At a pH between 2 and 9 1,10-phenanthroline is added. the measurement of the absorbance of the orange-red complex formed is carried out at the wavelength of maximum absorption (510 nm). The method is applicable to test solutions from which an aliquot portion can be taken containing between 10 and 500 g of Fe in a volume of not more than 60 m. Details of certain interferences and means by which they can be overcome are given in an annex.