摘要
本文研究了PMBP及PMBP与锆形成络合物的极谱行为,并建立了微量锆极谱测定方法。该方法灵敏度高,对铪的选择性较好。测定了18个地质标样获得满意的结果。
PMBP can be adsorbed and reduced irreversibly by its enolic form on the electrode surface. Its complexes with Zr can also be adsorbed and then reduced at the dropping mercuryelectrode. The experimental condition was selected to use 4% tartaric acid and 0. 001% PMBP in 0. 5mol/L HCI. The peak potential is -1. OOV(vs.SCE). A good linear relationship was shown between the peak height and concentration in the range of 0. 02～08μg/ml. Trace amount of zirconium in rocks was determined by this method. The reduction of the complex is due to that of the enolic form of PMBP. Zirconium can form mixed complex with PMBP and tartaric acid in the ratio of zirconium: PMBP: tartaric acid=1: 3: 1.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
1990年第3期223-227,共5页
Chinese Journal of Analytical Chemistry
基金
国家自然科学基金
关键词
锆
PMBP
极谱分析
地质标样
Zirconium
1-Phenyl-3-methyl-4-benzoylpyrazolone-5
Polarography
