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Issue 12, 2000
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Derivative spectrophotometry in the analysis of mixtures of phenols and herbicides

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Abstract

Derivative spectrophotometry (zero-crossing technique) was applied to the determination of selected phenols and herbicides in two-component mixtures. Methyl- and chlorophenols (3-methylphenol, 2,3- and 3,4-dimethylphenol, 2,5-, 2,6- and 3,4-dichlorophenol and 2,4,5-trichlorophenol) and triazine, uracil and urea herbicides (simazine, propazine, hexazinone, bromacil and metoxuron) were examined. The RSD values ranged between 0.05 and 4% and the recoveries obtained were between 97 and 110%. The developed derivative spectrophotometric method was also applied as a complementary technique for the separation of overlapping peaks of sample compounds obtained by HPLC with diode-array detection. Metoxuron and 3-methylphenol, metoxuron and 2,5-dichlorophenol and simazine and 2,6-dichlorophenol were determined simultaneously by this method at the level of 1 × 10−3 g l−1.

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Article information


Submitted
24 Jul 2000
Accepted
18 Oct 2000
First published
21 Nov 2000

Analyst, 2000,125, 2335-2338
Article type
Paper

Derivative spectrophotometry in the analysis of mixtures of phenols and herbicides

I. Baranowska and C. Pieszko, Analyst, 2000, 125, 2335
DOI: 10.1039/B005962P

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