title: [Study on spectrophotometric determination of trace nitrite with brilliant cresol blue].
abstract: A new spectrophotometric method for the determination of trace nitrite was studied. The method is based on the diazo-reaction of brilliant cresol blue with nitrite. The linear range for the determination is 0.5-12 microg NO2(-)/25 mL. The detection limit is 0.5 microg NO2(-)/25 mL. The method has been used for the determination of trace nitrite in water. The mechanism of the reaction was discussed.
authors.affiliation: Department of Chemistry, Huaibei Coal Teacher's College, 235000 Huaibei.
authors.forename: C
authors.initials: C
authors.lastname: Dong
authors.forename: F
authors.initials: F
authors.lastname: Ming
mesh_terms: D001557:Benzenesulfonates / Q000737:chemistry*; D007220:Industrial Waste / Q000032:analysis; D009573:Nitrites / Q000032:analysis*; D013053:Spectrophotometry / Q000379:methods*; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D001557:Benzenesulfonates; D007220:Industrial Waste; D009573:Nitrites; D014874:Water Pollutants, Chemical; C006796:brilliant blue