Determination of primary biogenic amines in various food products using isocratic HPLC with 3-(4-chlorobenzoyl)-quinoline-2-carboxaldehyde as a new precolumn fluorogenic reagent.
A simple HPLC approach has been successfully established for the sensitive determination of six biogenic amines (BAs) in food samples. The method involves derivatization with 3-(4-chlorobenzoyl)-quinoline-2-carboxaldehyde newly synthesized as a new fluorogenic reagent followed by LC isocratic elution mode. The optimization of both derivatization and separation conditions is carefully studied. Related analyses of the eluted compounds, in the presence of MeOH/THF/H(2)O (78:2.5:19.5 v/v/v) as a mobile phase containing 8 mM, pH 6.0 phosphate buffer solution, have been carried out on a C(18) column. The LOD (S/N = 3) of 2.5 nM, RSD value from 1.0 to 5.1% in peak areas, and good response linearity (R(2) >0.9936) are provided with fluorescence detection at lambda(ex)/lambda(em) = 480/545 nm. Obviously, recovery ranging from 95 to 107% in this method demonstrates its accuracy for determination of histamine, tyramine, 2-phenylethylamine, putrescine, cadaverine, and spermidine in the storage fish sample. Thus, the present method could be developed to monitor BAs in fish, cucumber, and spinach samples.
Zhang
Niu
N
Department of Chemistry, Wuhan University, Wuhan, PR China.
Wang
Hong
H
Guo
Xiao-Feng
XF
Zhang
Hua-Shan
HS
D000818:Animals; D001577:Benzophenones / Q000138:chemical synthesis / Q000737:chemistry*; D001679:Biogenic Amines / Q000032:analysis* / Q000737:chemistry; D002851:Chromatography, High Pressure Liquid / Q000295:instrumentation / Q000379:methods; D018553:Cucumis sativus / Q000737:chemistry*; D005399:Fishes; D005456:Fluorescent Dyes / Q000138:chemical synthesis / Q000737:chemistry*; D005504:Food Analysis / Q000295:instrumentation / Q000379:methods; D015394:Molecular Structure; D011804:Quinolines / Q000138:chemical synthesis / Q000737:chemistry*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D018724:Spinacia oleracea / Q000737:chemistry*; D013997:Time Factors
C532738:3-(4-chlorobenzoyl)quinoline-2-carboxaldehyde; D001577:Benzophenones; D001679:Biogenic Amines; D005456:Fluorescent Dyes; D011804:Quinolines