A sensitive fluorimetric method for determination of trace amounts of nitrite based on luminescence energy transfer

作者：Wang, Lun^*; Chen, Jingguo; Chen, Hongqi; Zhou, Cailing; Ling, Bo; Fu, Jie

来源：Journal of Luminescence, 2011, 131(1): 83-87.

DOI：10.1016/j.jlumin.2010.09.003

• Luminescence energy transfer
• Nitrite
• Terbium(III) sodium hexametaphosphate chelate
• Determination

An efficient luminescence energy transfer (LET) system based on terbium(III)-sodium hexametaphosphate (Tb/SHMP) chelates as donor and 4-((4-(2-aminoethylamino)naphthalen-1-yl)diazenyl)benzenesulfonic acid dihydrochloride (ANDBS) as acceptor was developed for sensitive determination of trace nitrite Stable and strong fluorescence Tb/SHMP chelates were prepared in aqueous solution Based on Griess Reaction ANDBS was generated by the quantitative reaction of nitrite sulfanilamide and N-(1-naphtyl)-ethylenediamine dihydrochloride (N1NED) The degree of the overlap was effective for LET between the emission spectrum of Tb/SHMP chelates and the absorption spectrum of ANDBS Based on the luminescence intensity quenching of Tb/SHMP chelates in proportion to the trace amounts of nitrite a new assay for the selective and sensitive determination of nitrite was developed Under the optimum conditions the linear calibration graph was obtained with a linear range of 0 00040-0 20 mu g mL(-1) (R=0 99

• 出版日期2011-1
• 单位安徽师范大学