title: [Highly sensitive spectrofluorimetric determination of trace amounts of nitrite with N-(1-naphthyl) ethylenediamine].
abstract: A simple and sensitive fluorescence quenching method for the determination of trace nitrite was developed. The method is based on the reaction of NED with nitrite in acidic medium to form a new compound, which has weak fluorescence. The linear range was 1.07-214.0 microg x L(-1) with a 3sigma detection limit of 0.069 microg x L(-1) under the optimum experimental conditions. This proposed method has been applied to the determination of trace amounts of NO2- in tap water and lake water without extraction.
authors.affiliation: College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, China.
authors.forename: Yun-You
authors.initials: YY
authors.lastname: Zhou
authors.forename: Shi-Ke
authors.initials: SK
authors.lastname: She
authors.forename: Qin
authors.initials: Q
authors.lastname: Lu
authors.forename: Chang-Qing
authors.initials: CQ
authors.lastname: Zhu
authors.forename: Lun
authors.initials: L
authors.lastname: Wang
mesh_terms: D002138:Calibration; D005029:Ethylenediamines / Q000737:chemistry*; D005453:Fluorescence; D005618:Fresh Water / Q000032:analysis / Q000737:chemistry; D006851:Hydrochloric Acid / Q000737:chemistry; D006863:Hydrogen-Ion Concentration; D008956:Models, Chemical; D009573:Nitrites / Q000032:analysis* / Q000737:chemistry / Q000592:standards; D015203:Reproducibility of Results; D013050:Spectrometry, Fluorescence; D013056:Spectrophotometry, Ultraviolet; D013696:Temperature; D014877:Water Pollution, Chemical / Q000032:analysis
chemical_list: D005029:Ethylenediamines; D009573:Nitrites; C008588:N-(1-naphthyl)ethylenediamine; D006851:Hydrochloric Acid