Method for determining contents of six Strecker aldehydes in Baijiu

The invention relates to a method for determining the content of six Strecker aldehydes in white spirit, in particular to a method for simultaneously determining six aldehydes components with low content but high aroma in the white spirit, namely n-propionaldehyde, 2-methylpropionaldehyde, 3-methylbutyraldehyde, 2-methylbutyraldehyde, benzaldehyde and phenylacetaldehyde through sample pretreatment, purging and trapping and a gas chromatography-mass spectrometry technology. The method is good in accuracy, high in sensitivity and convenient to operate, and can meet rapid quantitative analysis of six low-content aldehyde components in the white spirit. 本发明涉及一种测定白酒中六种Strecker醛含量的方法，通过样品前处理、吹扫捕集、气相色谱质谱联用技术同时测定正丙醛、2-甲基丙醛、3-甲基丁醛、2-甲基丁醛、苯甲醛和苯乙醛六种白酒中含量较低但呈香较大的醛类组分的方法；该方法准确度好、灵敏度高、操作便捷，可以满足白酒中低含量的六种醛类组分快速定量分析。