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PHOTOMETRIC DETERMINATION OF CADMIUM(II) BY THE FORMATION OF TERNARY COMPLEX WITH POTASSIUM IODIDE AND RHODAMINE B

Yuzhen Liang

Open publisher page 4 citations

Abstract

In a sulfuric acid solution of 0.12 mol.L-1and in the presence of PVA,a ternary complex was formed among Cd(Ⅱ),KI and rhodamine B,which was stable for at least 1 h.Beer′s law was held in the range of 0-3μg/25 mL of Cd(Ⅱ),giving the molar absorptivity()e 6.84×105L.mol-1.cm-1at its absorption maxima of 605 nm.It its application to the determination of cadmium in lake water.RSD′s of the analytical results were less than 0.6%,and recoveries found were in the range of 98.2%-100.1%.

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What this paper is about

In a sulfuric acid solution of 0.12 mol.L-1and in the presence of PVA,a ternary complex was formed among Cd(Ⅱ),KI and rhodamine B,which was stable for at least 1 h.Beer′s law was held in the range of 0-3μg/25 mL of Cd(Ⅱ),giving the molar absorptivity()e 6.84×105L.mol-1.cm-1at its absorption maxima of 605 nm.It its application to the determination of cadmium in lake water.RSD′s of the analytical results were less than 0.6%,and recoveries found were in the range of 98.2%-100.1%.

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Available abstract

In a sulfuric acid solution of 0.12 mol.L-1and in the presence of PVA,a ternary complex was formed among Cd(Ⅱ),KI and rhodamine B,which was stable for at least 1 h.Beer′s law was held in the range of 0-3μg/25 mL of Cd(Ⅱ),giving the molar absorptivity()e 6.84×105L.mol-1.cm-1at its absorption maxima of 605 nm.It its application to the determination of cadmium in lake water.RSD′s of the analytical results were less than 0.6%,and recoveries found were in the range of 98.2%-100.1%.

Key concepts: Molar absorptivity, Rhodamine B, Chemistry, Cadmium, Sulfuric acid, Ternary operation, Ternary complex, Nuclear chemistry

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PHOTOMETRIC DETERMINATION OF CADMIUM(II) BY THE FORMATION OF TERNARY COMPLEX WITH POTASSIUM IODIDE AND RHODAMINE B — Research Paper | ScholarLens