摘要
用PAR做显色剂,采用卡尔曼滤波-导数分光光度法同时测定镍、铜、锌。该法同时具有卡尔曼滤波和导数光谱的优点。镍、铜、锌在一阶导数光谱最大波长处的一阶导数摩尔吸光系数分别是3.8×10~5、1.6×10~3和6.2×10~5。合成样品分析结果良好。
A derivative spectrophotometric method based on Kalman filter is described for the simultaneous determination of Ni, Cu and Zn with 4-(2-pyridylazo) resorcinol (PAR). The method offers the advantages of both Kalman filter and derivative spectrophotometry. First derivative molar absorptivities of Ni, Cu and Zn are 3.8×10~5, 1.6×10~5 and 6.2×10~5 L·mol^(-1)·cm^(-1), which are 5.8, 4.2 and 6.4 times of those in conventional spectrophotometry respectively. The result of the determination of the synthetic sample is satisfactory.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
1992年第10期1195-1198,共4页
Chinese Journal of Analytical Chemistry
关键词
卡尔曼滤波
分光光度法
镍
铜
锌
Derivative spectrophotometry
Kalman filtering
Nickel
Copper
Zinc
