Brewing white spirit and alcohol concocted white spirit discrimination method
A liquor and alcohol technology, applied in the field of identification of brewed liquor and alcohol-blended liquor, can solve problems such as difficulty in sensory indicators, and achieve the effect of avoiding the calculation process
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Embodiment 1
[0088] Example 1: Identification of Fen-flavor Brewed Liquor and Liquor Clear Blended Liquor
[0089] (1) Establish fingerprints of brewed liquor and alcohol blended liquor
[0090] a. Preparation of test samples.
[0091] According to the national standards for blending liquor, an enterprise is entrusted to prepare alcohol-blended liquor and provide brewed liquor, including 10 samples of brewed liquor and 7 samples of alcohol-blended liquor.
[0092] b. Carry out coulometric array high performance liquid chromatography detection on the test sample.
[0093] Instrument: Model 5600A produced by ESA Company in the United States, equipped with a high performance liquid chromatograph (HPLC-ECD) with a Coulomb array electrochemical detector.
[0094] Methanol and acetonitrile are chromatographically pure, sodium dihydrogen phosphate is analytically pure, and water is distilled water.
[0095] Chromatographic conditions: Phase A in the mobile phase is: 30mmol aqueous solution of ...
Embodiment 2
[0122] Example 2: Classify and identify liquors with different blending ratios
[0123] Four different proportions of brewed liquor (100%, 75%, 15% and 10%) were selected for high-performance liquid chromatography analysis, and the analysis method was the same as in Example 1. The liquid chromatograms of four kinds of liquor brewed in different proportions are shown in Figure 17 to Figure 20. From each figure, it can be clearly distinguished the liquor with a concentration below 15% and above 75%, while 10% and 15%, 75% and There is not much difference in the spectra between 100%, and because there are many peaks, it is difficult to visually select substances for comparison. A large amount of data in the spectrogram was further statistically analyzed using the Pirouette data processing software using the fingerprint model established above, and the data map is shown in Figure 21.
[0124] Cluster analysis was performed on four liquor samples with different concentrations, amo...
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