顕微フーリエ変換赤外分光光度法及びエレクトロスプレーイオン化質量分析法によるアミノ酸飲料の迅速識別

概要

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A rapid discrimination method of amino acid drinks(AADs) by microscopic Fourie-transform infrared spectroscopy(FT-IR) and electrospray ionization mass spectrometry(ESI-MS) was studied for forensic identification. The ten descriptions of PET bottle AADs(several tens μL) were used as samples. Types of saccharides contained mainly in the drinks were given by the FT-IR analysis. The results by the ESI-MS analysis of samples diluted twice with acetonitrile were as follows : amino acids and saccharides were mainly detected as [M+H]^+ and [M+Na(or K)]^+, respectively, in the positive mode. Acidity regulators and saccharides were mainly detected as [M-H]^- and [M+Cl]^-, respectively, in the negative mode. The FT-IR and ESI-MS analyses used in this study rapidly discriminated all samples of the AADs, and could be applied to screening tests of the AADs.
社団法人日本分析化学会の論文
2008-05-05