Summary
2-Mercaptoquinoline is introduced as a sensitive and selective reagent for copper and palladium. Spot test detections and spectrophotometric determinations of these metals have been carried out. 0.03 μg Cu at a limiting concentration of 1 ∶ 430,000 can be detected by the spot technique on a filter paper, and 0.025 μg Cu at a limiting concentration of 1 ∶ 106 by means of the spot plate method. Palladium was determined by measuring the optical density of the orange-yellow colour at 450 mμ developed in alcoholic medium at pH 1.4–2.8. The sensitivity is 0.009 μg Pd per cm2 (Sandell).
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References
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The author feels deeply indebted to Professor P. Rây, Director and Professor (Hony) of Inorganic Chemistry, for his helpful suggestions, and to Dr. P. C. Banerjee for his kind interest in the work.
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Xavier, J. 2-Mercaptoquinoline (thiocarbostyril) as an analytical reagent for copper and palladium. Z. Anal. Chem. 163, 182–187 (1958). https://doi.org/10.1007/BF00453287
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DOI: https://doi.org/10.1007/BF00453287