摘要
本文用反相高效液相色谱法研究了铁、钴,钯-3,5-diBr-PADAT-SLS体系。在pH5.5的HAc-NaAc介质中,七种金属离子可与试剂生成配合物。用Spherisorb 5 ODS柱,含有4.02×10^(-2)mol/L KCl和0.06mol/L pH3.0HAc-NaAc甲醇/乙腈/水(83/0.5/16.5)溶液作为流动相,分离出了Fe^(2+)、Co^(2+)和Pd^(2+)配合物。对分离机理进行了初步研究。建立了铁、钴、钯的同时测定的HPLC-光度法。用于对虾饵料中铁、钴的测定,结果令人满意。
In the HAc-NaAc buffer of pH 5.5, the micellar complexes of seven metal ions can be formed with 3,5-diBr-PADAT and Sodium lauryl sulfate(SLS). The complexes of Fe(Ⅱ), Co(Ⅱ) and Pd(Ⅱ) were separated by chromatography on a Spherisorb ODS column and using a mixture of MeOH/MeCN/water (83/0.5//16.5) containing 4.02×10^(-2) mol/L KCl and 0.06 mol/L HAc-NaAc bufter (pH 3.0))as a mobile phase. The separation mechanism was investigated. A HPLC-spectrophotometric method for simultaneous determination of iron, cobalt and palladium has been developed and applied to the determination of iron and cobalt in flshfood with satisfactory results.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
1989年第11期971-974,970,共5页
Chinese Journal of Analytical Chemistry
基金
国家自然科学基金
关键词
铁
钴
高效液相色谱
胶束增溶
钯
Iron
Cobalt
Palladium
5-(3,5-Dibromo-2-Pyridylazo-2,4-aminotoluenesodium lauryl sulfate
High-Performance Liquid Chromatography
Micellar selubilization complex
