摘要
试验发现 ,新试剂 N-烯丙基 - N′- (对苯磺酸钠 )硫脲在氟化钠和 2 mol· L- 1 盐酸介质中与 Pd( )生成黄色配合物。在此条件下 ,能与 Pd( )共存的阳离子和阴离子在常温下均不产生沉淀或生成深色配合物。 N-烯丙基 - N′- (对苯磺酸钠 )硫脲试法是 Pd( )的一种高选择性鉴定方法。检出限为 0 .2 1 μg,最低浓度为 6.4 μg·ml- 1。该方法条件容易控制 ,操作简便 ,在对实际样品中 Pd( )的鉴定时 ,均获得满意结果。
It is found that in 2mol·L -1 HCl solution and in the presence of NaF, the new reagent N Allyl N′ (sodium p benzene sulfonate) thiourea (abbreviatdd as ABSTU) reacts with Pd(Ⅱ) to give a stable yellow colored complex. The detection limit is found to be 0.21μg. and the minimum detection concentration to be 6.4μg·ml -1 (1∶15700). No remarkable interference was observed in the tests for 36 co existing ions. Satisfactory results were obtained in its practical applications.
出处
《理化检验（化学分册）》
CAS
CSCD
北大核心
2000年第8期348-349,351,共3页
Physical Testing and Chemical Analysis(Part B:Chemical Analysis)
关键词
鉴定
定性分析
ABSTU
Selective detection Palladium N Allyl N′ (sodium p benzenesulfonate) thiourea
