首页> 外文期刊>Acta Chimica Slovenica >Spectrophotometric Studies of 4-[N'-(4-Imino-2-oxo-thiazolidin-5-ylidene)-hydrazino]-benzenesulfonic acid as a Reagent for the Determination of Palladium
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Spectrophotometric Studies of 4-[N'-(4-Imino-2-oxo-thiazolidin-5-ylidene)-hydrazino]-benzenesulfonic acid as a Reagent for the Determination of Palladium

机译:分光光度法研究4- [N'-(4-氨基-2-氧代-噻唑烷--5-亚甲基)-肼基]-苯磺酸作为测定钯的试剂

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摘要

The spectrophotometric behavior of a new, first-time synthesized reagent -4-[N'-(4-imino-2-oxo-thiazolidin-5-ylidene)-hydrazino]-benzenesulfonic acid (ITHBA), has been investigated. A simple, rapid, accurate, selective and sensitive method for the spectrophotometric determination of Pd(II) ions using this reagent was developed. The optimal conditions for the formation of the complexes were found. The molar absorptivity at lambda = 438 nm is 7.5 x 10(3) L mol(-1) cm(-1), and Beer's law is observed for the concentrations ranging from 0.2-2.2 mu g mL(-1) Pd(II). The effects of extraneous ions were investigated. The method proved to be successful in determination of palladium in the intermetallides and resistor. The accuracy of spectrophotometric palladium assay in real objects with 4-[N'-(4-imino-2-oxo-thiazolidin-5-ylidene)hydrazino]-benzenesulfonic acid has been confirmed by voltammetric or atomic absorption spectroscopy method.
机译:研究了一种新的,首次合成的试剂-4- [N'-(4-亚氨基-2-氧代-噻唑烷丁-5-亚烷基)-肼基]-苯磺酸(ITHBA)的分光光度行为。开发了一种使用该试剂分光光度法测定Pd(II)离子的简单,快速,准确,选择性和灵敏的方法。找到了形成配合物的最佳条件。 λ= 438 nm时的摩尔吸收率为7.5 x 10(3)L mol(-1)cm(-1),并且在0.2-2.2μg mL(-1)Pd(II)范围内观察到比尔定律)。研究了外来离子的影响。实践证明该方法可成功测定金属间化合物和电阻器中的钯。通过伏安法或原子吸收光谱法已经证实了使用4- [N'-(4-亚氨基-2-氧代-噻唑烷定-5-亚甲基)肼基]苯磺酸的分光光度法测定钯的准确性。

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