摘要
本文报道以偶氮氯膦Ⅲ为显色剂,利用流动注射pH梯度技术测定多个不同pH下的吸光度,借助卡尔曼滤波算法进行数据处理,对不同比例的钡锶(Ba:Sr=1:8～8:1)标准混合样品进行了测定,取得了满意的结果。
This paper covers the simultaneous spectrophotometric determination of Ba(Ⅱ) and Sr(Ⅱ)by pH gradient technique with chlorophosphonazo Ⅲ as the chromogenic reagent. Kalman Filterwas used to analyze the complex absorbances allected by a micro-computer system. Themethod wasused for the determination of Ba(Ⅱ) and Sr(Ⅱ) in the mixing standard samples witha content ratio of Ba: Sr in the range from 1:8 to 8:1, and satisfactory results were obtained.
出处
《分析测试学报》
CAS
CSCD
1993年第6期56-59,共4页
Journal of Instrumental Analysis
基金
上海市自然科学基金
上海市高教局基金
关键词
流动注射
卡尔曼滤波
钡
锶
Flow injection analysis
pH gradients
Kalman filter
Spectrophotometry
Simultaneous determination
Barium
Strontium
