6533b824fe1ef96bd12812a3

RESEARCH PRODUCT

Determination of platinum and iridium in reforming catalysts by second derivative and absorptiometric spectrophotometry

Jouni TummavuoriL. SiltaloppiS. Hankala

subject

medicine.diagnostic_testAnalytical chemistrychemistry.chemical_elementHydrochloric acidBiochemistryChlorideAnalytical ChemistryCatalysischemistry.chemical_compoundchemistrySpectrophotometrymedicineIridiumTinPlatinumDerivative (chemistry)Nuclear chemistrymedicine.drug

description

Investigations on the spectrophotometric determination of platinum as a complex formed by tin(II)chloride in hydrochloric acid are reported. The determination of platinum was found to be interfered with by iridium, because it also forms a complex with tin(II) chloride. The features of the derivative absorption spectrophotometry for the quantitative determination of platinum and iridium was also studied. The analytical application of the method for the determination of platinum and iridium in catalysts was investigated.

https://doi.org/10.1007/bf00324401