A TLC-densitometric method for determination of the triazine herbicides atrazine and simazine in natural and tap water is described. Separation was carried out on silica gel G, followed by detection with silver nitrate and UV exposure. Alumina column cleanup was required for tap water. Recovery of samples fortified at 10 ppb was > 80%, and the relative standard deviation was better than 7.5%.
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Sherma et al. (1980) studied this question.
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