Can ethyl acetate in liquor be detected by other methods without chromatograph?

Application and methods of gas chromatograph in liquor industry At present, most gas chromatographs used in liquor industry are hydrogen flame detectors, so here I mainly talk about the analysis columns and methods commonly used in liquor industry. Selection of 1. chromatographic column 1. Packed column method is the most widely used analysis method in liquor factory at present, which adopts DNP column successfully developed by Inner Mongolia Institute of Light Industry. This method has been included in the national standard for controlling the contents of ethyl caproate in Luzhou-flavor liquor and ethyl acetate in Fen-flavor liquor. Packed column method operates at constant temperature, which has relatively low requirements for instruments, good stability and simple operation, and is generally used for routine detection and production quality control. With direct injection, more than ten kinds of components such as alcohol, aldehyde and ester can be analyzed in one injection (see figure 1), and the analysis time is generally about 35 minutes (Luzhou-flavor liquor). Disadvantages: the content of organic acids in liquor can not be detected. 2. Thin tube method (1) Large-diameter capillary column The analysis method of large-diameter capillary column introduced by Lanzhou Institute of Chemical Technology in 1990s. Because it can directly sample and analyze more than twenty kinds of components in liquor, such as alcohol, aldehyde, ester, acetic acid, butyric acid, etc., the analysis time is short, and the instrument requirements are relatively low by using stigma sampling and constant temperature operation, so it has been well applied in liquor industry. The disadvantage is that the column is compared with ethyl acetate and n-propanol, acetal and n-butanol. ...