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  • Title: Simple validated method for simultaneous determination of deoxynivalenol, nivalenol, and their 3-β-D-glucosides in baby formula and Korean rice wine via HPLC-UV with immunoaffinity cleanup.
    Author: Lee SY, Woo SY, Malachová A, Michlmayr H, Kim SH, Kang GJ, Chun HS.
    Journal: Food Addit Contam Part A Chem Anal Control Expo Risk Assess; 2019 Jun; 36(6):964-975. PubMed ID: 31034333.
    Abstract:
    A simple and reliable method for the simultaneous determination of major type B trichothecene mycotoxins, deoxynivalenol (DON) and nivalenol (NIV), along with their 3-β-d-glucosides (DON-3-glucoside (DON3G) and NIV-3-glucoside (NIV3G)) in baby formula and Korean rice wine was validated in the present study. The method was based on immunoaffinity cleanup followed by analysis using an HPLC-UV technique. The method was validated in-house for two matrices as follows: linearity (R2 > 0.99) was established in the range of 20-1000 μg kg-1; accuracy (expressed as recovery) ranged from 78.7 to 106.5% for all the analytes; good intermediate precision (relative standard deviation < 12%), and adequate detection and quantitation limits (< 4.4 and < 13.3 μg kg-1, respectively) were achieved. Furthermore, the estimated measurement expanded uncertainty was determined to be 4-24%. The validated method was successfully applied to the analysis of 31 baby formulas and Korean rice wines marketed in Korea.
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