LIU Bo, HAN Xiaodong, ZHANG Minting, et al. Application AQC as a Pre-column Derivatization Reagent for HPLC Determination of Free Amino Acids in Borojo sorbilis Cuter.[J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 2013,52(4):100-104.
LIU Bo, HAN Xiaodong, ZHANG Minting, et al. Application AQC as a Pre-column Derivatization Reagent for HPLC Determination of Free Amino Acids in Borojo sorbilis Cuter.[J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 2013,52(4):100-104.DOI:
To determine and analyze free amino acids in Borojo.The sample was derivatized with 6-aminoquinolyl-N-hydroxysuccinimidyl carbamate (AQC) and then was analyzed with highperformance liquid chromatography (HPLC). HPLC was performed on a Phenomenex C
18
(250mm × 4.6 mm
5 μm) column with gradient elution of deionized water (A)
acetonitrile (B) and 10 mmol/L ammonium acetate buffer solution(adjusted to pH 5-10 with glacial acetic acid) (C) at the flow rate of 0.8~1.0 mL/min
detected with Ultra Voilet (UV) at 248 nm. Linear relationship equations were obtained with 18 kinds of amino acids in the range of 0.02~0.5 mmol/L
and their correlation coefficients were in the range of 0.998 3~0.999 2. Fourteen amino acids were detected and average recoveries of those added were in the range of 96.9 %~106.9 % and RSD values were in the range of 0.67 %~3.07 %. The method could be used for determination of content of free amino acids in Borojo.