大连大学学报
大連大學學報
대련대학학보
JOURNAL OF DALIAN UNIVERSITY
2012年
3期
30-33
,共4页
范晓燕%徐嫔%于媛
範曉燕%徐嬪%于媛
범효연%서빈%우원
三元配合物%铬天青S(CAS)%OP乳化剂%显色反应
三元配閤物%鉻天青S(CAS)%OP乳化劑%顯色反應
삼원배합물%락천청S(CAS)%OP유화제%현색반응
ternary complexes%chrome azurals S%OP microemulsion%colour reaction
本文主要研究了Al(III)-CAS—OP三元配合物显色体系。在pH=5.5的HAc-NaAc介质中,该配合物的λmax=560nm,εmax=4.8×104L.mol-1.cm-1。Al(III)量在0~3.2mg/L范围内线性关系良好,符合比尔定律,其线性回归方程为A=47833C-0.0103;相关系数r=0.9990。摩尔比法测定了该配合物配位比为1:2:4。以抗坏血酸作掩蔽剜,利用该体系测定粉条中的铝含量,回收率为91%~101%。
本文主要研究瞭Al(III)-CAS—OP三元配閤物顯色體繫。在pH=5.5的HAc-NaAc介質中,該配閤物的λmax=560nm,εmax=4.8×104L.mol-1.cm-1。Al(III)量在0~3.2mg/L範圍內線性關繫良好,符閤比爾定律,其線性迴歸方程為A=47833C-0.0103;相關繫數r=0.9990。摩爾比法測定瞭該配閤物配位比為1:2:4。以抗壞血痠作掩蔽剜,利用該體繫測定粉條中的鋁含量,迴收率為91%~101%。
본문주요연구료Al(III)-CAS—OP삼원배합물현색체계。재pH=5.5적HAc-NaAc개질중,해배합물적λmax=560nm,εmax=4.8×104L.mol-1.cm-1。Al(III)량재0~3.2mg/L범위내선성관계량호,부합비이정률,기선성회귀방정위A=47833C-0.0103;상관계수r=0.9990。마이비법측정료해배합물배위비위1:2:4。이항배혈산작엄폐완,이용해체계측정분조중적려함량,회수솔위91%~101%。
The chromogenic system of Al(III)-CAS-OP ternary complex was investigated. In the medium of HAc-NaAc, maximum absorb wave-length of the complex was 560 nm and εmax was 4.8×104L.mol.cm-1. Beer's law was obeyed for Al(III) in the range of 0-3.2 mg/L. The linear equation was A=47833C-0.0103, and the correlation coefficient was 0.990. The composition ratio of the ternary complexes was 1:2:4 by using the method of molar ratio. The Al(III) content in vermicelli was meatrued by using the system with ascorbic acid as masking agent. The recovery was 91%-106%.