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R. F. Black, G. P. Kurtz and H. Baum, Association of Official Analytical Chemists Journal, Vol. 54, 1971, p. 1237.

has been cited by the following article:

  • TITLE: Spectrophotometric Determination of Kelthane in Environmental Samples

    AUTHORS: Etesh K. Janghel, Y. Pervez

    KEYWORDS: Spectrophotometry, Kelthane, Acaricide, Benzidine, Environmental Samples

    JOURNAL NAME: American Journal of Analytical Chemistry, Vol.2 No.6, October 11, 2011

    ABSTRACT: Sensitive spectrophotometric method for determination of kelthane in sub parts per million level is described, which is based on Fujiwara reaction. Kelthane on alkaline hydrolysis gives chloroform, which can be reacted with pyridine to produce red colour. The colour is discharged by addition of glacial acetic acid. Then Benzidine (4,4’-Bianiline) reagent is added due to which a yellowish-red colour is formed which has an absorption maximum at 490nm. Beer’s law is obeyed in the range of 3.3 - 26.0 µg (0.13 - 1.04 ppm) of Kelthane per 25ml of final solution. The molar absorptivity and Sandell’s sensitivity were found to be 4.32 × 105 L?mol–1?cm–1 and 0.022 µg?cm–2 respectively. The method is found to be free from interferences of other organochlorine pesticides and various co-pollutants and can be successfully applied for the determination of kelthane in environmental samples.