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Chemiluminescence derivatization of methylglyoxal using 2-aminonicotinic acid
1Graduate School of Pharmaceutical Sciences, Kyushu University, Higashi, Fukuoka, Japan.
Chemical & Pharmaceutical Bulletin
|August 26, 2000
Abstract:
To develop a sensitive and selective chemiluminometric method for the determination of methylglyoxal, we used 2-aminonicotinic acid as the chemiluminescence derivatization reagent. 2-Aminonicotinic acid reacts with methylglyoxal in an acidic solution at 37 degrees C for 4 h and gave a chemiluminescence in N,N'-dimethylformamide containing sodium tert-butoxide. The detection limit (blank intensity plus three-times its standard deviation of methylglyoxal) for methylglyoxal is 233 fmol in the reaction mixture.