TY -的A2 Di马络Antimo盟——张Xiaolong AU - Chen, Hongyan AU - Wu, Dawei AU - Gu, Wei AU - Sun, Xiao AU - Chen, Jian AU - Wu, Qinan PY - 2018 DA - 2018/12/05 TI - Determination of Free Amino Acids in Three Species of Duckweed (Lemnaceae) SP - 7673652 VL - 2018 AB - In this study, a fast, simple, precise, and sensitive hydrophilic interaction liquid chromatography (HILIC) method was established for simultaneous determination of free amino acids in three different varieties of duckweed including Spirodela polyrhiza(L.) Schleid., Landoltia punctata(G. Mey.) Les & D. J. Crawford, and Lemna aequinoctialisWelwitsch by ultrahigh performance liquid chromatography coupled with tandem mass spectrometry (UHPLC-MS/MS). Method validation was processed in terms of linearity, precision, stability, repeatability, and accuracy as well as limits of detection and quantification. The developed method was applied for quantification of 59 batches of samples. Then chemometric analysis was used to evaluate different duckweeds by principle component analysis (PCA) and orthogonal partial least squares-discriminant analysis (OPLS-DA). The results demonstrated that there was no significant difference in FAAs’ profile among three varieties of duckweed. SN - 0146-9428 UR - https://doi.org/10.1155/2018/7673652 DO - 10.1155/2018/7673652 JF - Journal of Food Quality PB - Hindawi KW - ER -