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Determination of Impurities in Tris(triphenylphosphine) Rhodium(I) Chloride by ICP-AES
Pages: 56-59
Year: Issue:  3
Journal: Precious Metals

Keyword:  analytical chemistrytris(triphenylphosphine) rhodium(I) chlorideimpurities;
Abstract: A method for the determination of Al, Cu, Fe, Mg, Pd, Ni, Pb, Pt, Zn in tris(triphenylphosphine) rhodium(I) chloride by ICP-AES was developed. The samples were digestion by HNO3 and HClO4, then dissolved with HCl+HNO3. The matrix effects come from Rh to Fe, Ni, Pb, Pt, Zn were eliminated by background point correction. The determination range is 0.001%~0.1%. The recoveries andRSD were 93.25%~117.0% and 0.18%~15.41%, respectively. Comparing with DC arc emission spectrometry, the method is more accurate and precise, less comsumption of high purity rhodium and easy to operate.
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