Hassan, Hassan M. A. published the artcileValidated spectrophotometric assessment of 1,4-dioxane in drinking water by amionhydroxynaphthlene sulfonic acid (AHSA), Application of 4-Amino-3-hydroxynaphthalene-1-sulfonic acid, the publication is International Journal of Environmental Analytical Chemistry, database is CAplus.
A selective, facile, and highly efficient spectrophotometric approach was established for the determination of 1,4-dioxane in drinking water quant. This approach depends on the reaction selectively of 1,4-dioxane with 1-Amino-2-naphthol-4-sulfonic acid (AHSA) to give an instantly complex measured at 340 nm. The maximum spectra development with high intensity of dioxane-AHSA complex was obtained at 15 min. Variable parameters that affecting the dioxane-AHSA efficacy were estimated and optimized. Under optimal conditions, the dioxane-AHSA complex obeyed Beer′s law within the range of 0.5-15 mg/L of 1,4-dioxane with a regression factor of 0.996 (n = 5) and a detection limit of 16 μg/L. The results of precision and accuracy within-day were ≤2.0% in terms of relative standard deviation (RSD%), which confirmed the reproducibility of the anal. performance. The proposed method was applied successfully in the simultaneous assessment of 1,4-dioxane in an aqueous solution The accuracy and reliability of the developed approach recommended being applied in all quality control of water companies without the use of sophisticated instrumentation and procedure.
International Journal of Environmental Analytical Chemistry published new progress about 116-63-2. 116-63-2 belongs to naphthyridine, auxiliary class Sulfonic acid,Amine,Naphthalene,Alcohol,Organic Pigment, name is 4-Amino-3-hydroxynaphthalene-1-sulfonic acid, and the molecular formula is C10H9NO4S, Application of 4-Amino-3-hydroxynaphthalene-1-sulfonic acid.
Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem