同位素內(nèi)標-液相色譜-串聯(lián)質(zhì)譜法同時測定糧食及其制品中的5種真菌毒素
[Abstract]:A new isotope internal standard-liquid chromatography-tandem mass spectrometry was developed for the rapid determination of zearalenone (ZON), (NIV), in grain and its products. Methods for the determination of 5 mycotoxins of deoxynivalenol (DON) and its derivatives, 3-acetyl-deoxy-nivalenol (3-ACDON) and 15-acetyl-deoxy-nivalenol (15-ACDON). Acetonitrile-water (84 渭 16, vv) was used as the extractant, purified by multi-function purification column and quantified by isotope internal standard method. The linear range of the five mycotoxins was good, and the correlation coefficient (r 2) was more than 0.999, and the correlation coefficient (r 2) was higher than 0.999, and the correlation coefficient (r 2) was higher than 0.999. Detection limit (LOD,S/N=3) is 5 ~ 20 渭 g / kg. The recoveries of barley, wheat, oat and corn were 84.2% and 114.5% respectively, and the relative standard deviation (RSD) was 0.4% and 9.9% (n = 6). The method has the advantages of simple operation, low cost, accurate and reliable, high sensitivity, and can be used to detect 5 kinds of mycotoxins in grain and its products at the same time.
【作者單位】: 中糧營養(yǎng)健康研究院營養(yǎng)健康與食品安全北京市重點實驗室;
【分類號】:O657.63;TS210.7
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