residual solvents in edible oil samples [August 10, 2004]
Posted: Mon Aug 30, 2004 6:55 pm
By Ganesh ramachandran on Tuesday, August 10, 2004 - 12:07 am:
Can Anybody tell me how can we assay residual solvent in vegetable oils? Is head space analysis on GC reliable? Please help. Thanks.
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By chromatographer1 on Tuesday, August 10, 2004 - 05:55 am:
Static headspace will be very accurate and reproducible. Add a portion of the oil to Dimethylacetamide (10無 to 50無.... keep the volume consistent) and use 80蚓 heating with stirring for 10min. Inject amount needed to give adequate peak size..... 100 to 500無 .
Can Anybody tell me how can we assay residual solvent in vegetable oils? Is head space analysis on GC reliable? Please help. Thanks.
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By chromatographer1 on Tuesday, August 10, 2004 - 05:55 am:
Static headspace will be very accurate and reproducible. Add a portion of the oil to Dimethylacetamide (10無 to 50無.... keep the volume consistent) and use 80蚓 heating with stirring for 10min. Inject amount needed to give adequate peak size..... 100 to 500無 .