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本品的分子式为C_(29)H_(18)ClNO_4,结构式为简称PQPP,与AuCl_4~-离子在0.5M HCl中会形成1:1离子缔合络合物,微溶于水,可用醋酸异戊酯萃取入有机层,具有萤光,可用萤光计测定,在很多离子大量存在下无干扰,如Pb~(++):Au~(+++)=1500:1;Cd~(++):Au~(+++)=15000:1。分析方法简单而灵敏,快速而准确,特别是在铅中测定微量金,可以不进行事先分离,是一个很有实用价值的分析试剂。应用方法试剂配制:PQPP溶液10~(-4)M,取0.012 gPQPP
The molecular formula of this product is C_ (29) H_ (18) ClNO_4, the structure is abbreviated as PQPP, and AuCl_4 ~ - ions will form 1: 1 ion association complex in 0.5M HCl, slightly soluble in water, Amyl ether was extracted into the organic layer, with fluorescence, which can be measured by fluorimetric method. It has no interference in the presence of many ions such as Pb ~ (++): Au ~ (+++) = 1500: 1; Cd ~ +): Au ~ (+++) = 15000: 1. Analysis method is simple and sensitive, fast and accurate, especially in the determination of trace amounts of lead in the lead, without prior separation, is a very valuable analytical reagent. Application reagent preparation: PQPP solution 10 ~ (-4) M, take 0.012 gPQPP