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| Determination of four kinds of chloropropanols fatty acid esters in edible vegetable oil by GC-MS |
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| DOI： |
| KeyWord:edible vegetable oil 3-MCPD ester 2-MCPD ester 1,3- DCP ester 2,3-DCP ester GC-MS |
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| Abstract: |
| A method for the simultaneous determination of the contents of 3-monochloropropane-1,2-diol (3-MCPD ester), 2-monochloropropane-1,3-diol (2-MCPD ester), 1,3-dichloropropane-2-ol (1, 3- DCP ester) and 2,3-dichloropropane-1-ol(2,3-DCP ester) in edible vegetable oil was established by gas chromatography-mass spectrography (GC-MS). The method showed good linear relationship in the range of 0.005-0.5 mg/L. The detection limit and quantification limit were 0.1 mg/kg and 0.2 mg/kg respectively. The recovery rate was between 97.2%- 106.0%, and the relative standard deviation was between 3.4%- 7.1%. The method was easily operated with good sensitivity, good repeatability, precise quanlification and quantification and little pollution to instrument, and it could meet the determination demand of chloropropanols fatty acid esters in edible vegetable oil. |
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