Synthesis of 1,5-bis(4,6-dichloro-1,3,5-triazinylamino)naphthalene and its application to spectrofluorimetric determination of aniline.
A new fluorescent reagent 1,5-bis(4,6-dichloro-1,3,5-triazinylamino)naphthalene (DTAN) was synthesized. The optimum conditions of fluorescent reaction of this reagent with aniline (PA) were also investigated. Based on this reaction, a new spectrofluorimetric method was developed for the determination of aniline. The fluorescent intensity was directly proportional to the concentration of aniline in the ranges 0.05-2.0 microg mL(-1) and 2.0-50 microg mL(-1) with the detection limits of 34 ng mL(-1) and 90 ng mL(-1). This method is simple, practical and can afford good precision and accuracy and can be successfully applied to assess aniline in water samples. A possible mechanism of the change of fluorescence intensity introduced by putting the aniline into the system is also discussed.
Wei
Wei
W
College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, PR China.
Wang
Hong-Jian
HJ
Jiang
Chong-Qiu
CQ
D015057:1-Naphthylamine / Q000031:analogs & derivatives* / Q000138:chemical synthesis / Q000737:chemistry; D000814:Aniline Compounds / Q000032:analysis*; D006863:Hydrogen-Ion Concentration; D012722:Sewage / Q000737:chemistry; D013050:Spectrometry, Fluorescence; D013696:Temperature; D013997:Time Factors; D014227:Triazines / Q000138:chemical synthesis* / Q000737:chemistry; D014867:Water / Q000737:chemistry
C528187:1,5-bis(4,6-dichloro-1,3,5-triazinylamino)naphthalene; D000814:Aniline Compounds; D012722:Sewage; D014227:Triazines; D014867:Water; D015057:1-Naphthylamine; C023650:aniline