摘要
本文采用示波极谱法,提出了在氯化铵-六次甲基四胺-柠檬酸三铵-硫酸底液体系中测定血清中痕量铂的方法。在该体系内样品中铂于滴汞电极上产生一灵敏的催化波,峰电位为-0.92V。建立了适宜血清样品的消化条件和最佳底液体系。方法检出限为0.01ng·ml^-1,加标回收范围为80.2%~117.6%,平均回收率为97.4%,变异系数为2.5%~12.9%,线性范围为0.1~100ng·ml。本法灵敏快速,
A methed for determination of trace platinum in serum with oscillographic polarography was reported. In a basesolution of ammonium chloride-hexamethylene tetramine (urotropine)-ammonium citrate-sulphuric acid, platium in the samplecan produce a sensitive polarographic wave at the potential of-0. 92V (vs. SCE),The digestion condition for serum samplesand the composition of the supporting electrolyte were optimized. The deterction limit was 0. 01 ng·ml-1, The spiked recoverieswere in the range of 80. 2 %~117. 6 % (x=97. 4 %). The coefficients of variation were 2. 5 %~12. 9 %. The method was sensitive and rapid without the need of expensive equipment. It was succesfully applied to the determina-tion of the serum samples from normal and patients having taken medicine containing cisplatin.
出处
《理化检验(化学分册)》
CAS
CSCD
北大核心
1993年第6期329-331,共3页
Physical Testing and Chemical Analysis(Part B:Chemical Analysis)
关键词
铂
血清
示波极谱法
Platinum
Serum
Oscillopolarographic analysis