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- W1803670113 abstract "This article discusses a spectrophotometric method that was developed for the determination of sevin (l-naphthyl-N-methylcarbamate) as well as its hydrolysis product, l-naphthol, in natural waters. The quantitative determination involves the extraction with chloroform and the hydrolysis of sevin to I-naphthol. The latter reacts with 4-aminoantipyrine and an oxidizing agent in alkaline medium to form a red-colored complex. Ammonia-phosphate buffer was used to stabilize the pH at 8.2 ± 0.3. Free I-naphthol, if present, is removed from the chloroform extract into a basic aqueous solution and can be determined separately. The sensitivity is about 5 µg/l for sevin and 8 µg/l for l-naphthol. Recoveries were 98.5 per cent for sevin and 99 per cent for I-naphthol." @default.
- W1803670113 created "2016-06-24" @default.
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- W1803670113 date "1967-07-01" @default.
- W1803670113 modified "2023-09-25" @default.
- W1803670113 title "Spectrophotometric Determination of Sevin in Natural Waters" @default.
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- W1803670113 doi "https://doi.org/10.1002/j.1551-8833.1967.tb03426.x" @default.
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