摘要
本文以PAR为显色剂,采用因子分析-导数分光光度法同时测定混合体系中镍、铜、锌.镍、铜、锌在一阶导数光谱最大波长处的一阶导数摩尔反光系数分别为3.8×105、2.7×105和5.5×105L.mol-1.cm-1,比基本光谱最大波长处的摩尔吸光系数分别提高5.8、7.1和5.7倍.对人工合成样的分析结果良好.
The factor analysis-derivative spectrophotometry method is used forsimultaneous determination of Ni,Cu,Zn with 4-(2-pyridylazo)-resorcinol reAR) asthe colour agent. The first derivative molar absorptivities of Ni, Cu and Zn are 3.8×105,2.7×105 and 5.5×105, respectively,and arc respectively 5.8, 7.1 and 5.7 times of those inconventional spectrophotometly.The results of determination of the synthetic samples arevery satisfaCtory.
出处
《石油化工高等学校学报》
CAS
1994年第2期25-31,共7页
Journal of Petrochemical Universities
关键词
因子分析
导数分光先度法
镍
铜
锌
Factor analysis, Derivative spectrophotometry, Ni
Cu
Zn