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  • Title: Development of an analytical method for 3-monochloropropane-1,2-diol in soy sauce using 4-heptanone as derivatizing agent.
    Author: Dayrit FM, Niñonuevo MR.
    Journal: Food Addit Contam; 2004 Mar; 21(3):204-9. PubMed ID: 15195467.
    Abstract:
    3-Monochloro-1,2-propane diol is a suspected carcinogen found in hydrolysed vegetable protein products such as soy sauce. A method is described for the analysis of 3-monochloro-1,2-propane diol in soy sauce by gas chromatography-mass spectrometry at a concentration range of 1-5000 ng g-1 using 4-heptanone as the derivatizing ketone and 3-monochloro-1,2-propane diol-d5 as the internal standard. The limit of detection for the method in the soy sauce matrix was 0.48 ng g-1 and the limit of quantification was 1.2 ng g-1.
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