Spectrophotometric determination of zinc ions with the use �?�?�?¯�?�?�?�?�?�?¢-correction method

Joanna KarpiÃƒÂƒÃ‚ÂƒÃƒÂ‚Ã‚Â±ska; Marta Kulikowska; Helena Puzanowska-Tarasiewicz; Barbara Starczewska

Analytical Chemistry: An Indian Journal
ISSN (PRINT): 0974-7419

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Abstract

Spectrophotometric determination of zinc ions with the use �?�?�?¯�?�?�?�?�?�?¢-correction method

Author(s): Joanna Karpi�?�?�?�?�?�?�?±ska, Marta Kulikowska, Helena Puzanowska-Tarasiewicz, Barbara Starczewska

The ïÃ‚Â¢-correction method for the spectrophotometric determination of zinc based on colour reaction with PAR is proposed. The use of this modification improved the precision and accuracy of the method. Using the ïÃ‚Â¢-correctionmethod zinc was determined in range 0.5-10ppmwith limit of detection 0.07ppm. The RSD%of determinationwas 0.35%at 5ppmlevel.