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- W2016115942 abstract "Abstract The coupling reaction of 1-naphthylamine with diazotized 4-aminobenzophenone in acidic media has been studied by a spectrophotometric method in order to determine trace amounts of 1-naphthylamine. the reaction involves coupling with the diazotized reagent to form an intense pink, water-soluble azo dye which shows maximum absorption at 530 nm. A graph of absorbance versus 1-naphthylamine concentration is linear, indicating that Beer's law is obeyed over the range of 5−00 μg of 1-naphthylamine in a final volume of 25 ml, i.e. 0–4 p.p.m., with a molar absorptivity of 5.15 × 104 1 m1−1 cm−1, a relative error of −2.3 to +0.63% and a relative standard deviation of 0.84–3.0%, depending on the concentration level. the method represents a sensitive, rapid and simple determination of trace amount of 1-naphthylamine in aqueous solution. Interferences due to foreign organic compounds have been investigated." @default.
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- W2016115942 date "1989-08-01" @default.
- W2016115942 modified "2023-09-26" @default.
- W2016115942 title "Spectrophotometric Determination of 1-Naphthylamine in Aqueous Solution by Coupling with Diazotized 4-Aminobenzophenone" @default.
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- W2016115942 doi "https://doi.org/10.1080/00032718908051239" @default.
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