摘要
研究了将ＰＡＮ用于流动注射（ＦＩＡ）分光光度法测定微量钴，在５６０ｎｍ处绘制标准曲线，线性范围为０～４５μｇ／ｍｌ，相关系数０．９９６，方法的相对标准偏差（ＲＳＤ）小于３％，加标回收率为９５％～１０５％，进样频率８０次／ｈ。本法简单快速，用于面粉、分子筛，铝合金测定结果令人满意。
The photometric determination of micro cobalt with PAN by flow injection analytis has been studied. The calibration curve for measurement at 560nm is linear over the range 0-45μg/ml of cobalt.The relative standard deviation of results is less than 3%.The recovery of internal standardization is 95%-105%.The frequency is 80 sample per hour.The propotal method is rapid,simple and covenient and it has been applied successfuly to determine cobalt in flour of wheat,molecular sieves and aluminium alloy with satisfactory results
出处
《冶金分析》
CAS
CSCD
北大核心
1996年第4期22-24,共3页
Metallurgical Analysis
关键词
流动注射
分光光度
PAN
钴
Folw injection analysis,Spectrophotometry,1-(2-Pyridylazo)-2-naphthol(PAN), Cobalt
