摘要
本文研究了5-Br-PADAP-Tritonx-100析相体系中铁的析相及显色反应。在Ph5.5六次甲基四胺-盐酸缓冲液中,络合物最大吸收峰为560nm,Sandell灵敏度为0.00087μg·cm^2,铁含量0～14μg15ml,符合比耳定律。此法应用于天然水中褒量铁的测定后,获得了满意的结果。
This paper seperation studies the phase and colour reaction of iron in the system of 5-Br -PADAP-Tritonx-100 phase-seperation.The complex was formed in a buffer solution at Ph 5.5(CH_2)_5N_4-HCI having an absorption peak at 560 nm.Sandell's sensitivity was 0.00087 (μg·cm^(-2)),with an iron content of 0~14 mg/5 ml which conform to Beer's law.The method was used in determing the trace iron in natural water.The results are satisfactory.
出处
《华东地质学院学报》
1991年第2期189-194,共6页
Journal of East China Geological Institute
关键词
铁
析相光度法
测定
5-Br-PADAP
Tritonx-100
iron
phase seperation and photometry
