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A new spectrophotometric method for the determination of zinc in milk and standard samples

  • Part II Environmental Chemistry and Cycling of Metals
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Abstract

In the present communication a simple spectrophotometric method for the determination of Zn is described. The method is based on the reaction of Zn with the newly synthesized reagent o-carboxyphenyl-diazoaminoazobenzene in an alkaline medium where the reagent is in the aci-form. The complex exhibits an absorption maximum at 530 nm and Beer's law is valid over the concentration range of 0.0001 to 0.0008 mg mL−1. Various analytical parameeters for colour development have been studied. The method has been successfully applied for the determination of Zn in tap water, milk and standard Zn samples.

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Authors and Affiliations

  1. Department of Chemistry, Ravishankar University, 492 010 MP, Raipur, India

    Lata Cherian & V. K. Gupta

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  1. Lata Cherian
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  2. V. K. Gupta
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Cherian, L., Gupta, V.K. A new spectrophotometric method for the determination of zinc in milk and standard samples. Water Air Soil Pollut 57, 505–512 (1991). https://doi.org/10.1007/BF00282914

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  • DOI: https://doi.org/10.1007/BF00282914

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