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  • Title: A novel method for the rapid detection of benzo(a)pyrene in liquid milk by dimethyl sulfoxide selectively enhanced synchronous fluorescence spectrometry.
    Author: Lin LR, Luo HD, Li XY, Li N, Zhou N, Jia YZ, Liu YH, Li YQ.
    Journal: Food Addit Contam Part A Chem Anal Control Expo Risk Assess; 2014; 31(7):1219-25. PubMed ID: 24827591.
    Abstract:
    Based on the high solubility efficiency and strong fluorescence response of benzo(a)pyrene (BaP) in dimethyl sulfoxide in combination with the high-performance derivative constant-energy synchronous fluorescence spectroscopic (DCESFS) technique, a simple, sensitive and economic method was developed for the determination of BaP in liquid milk. This method comprises ultrasound-assisted solvent extraction, solvent replacement and DCESFS detection. No saponification or other tedious clean-up procedures were needed. The recoveries of BaP in different milk samples were greater than 82%. Detection limits in full- and low-fat milk were 0.03 and 0.04 μg kg(-1), respectively.
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