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AOCS Official Method Cd 11b-91

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AOCS Official Method Cd 11b-91
Reapproved 2017
Mono- and Diglycerides by Capillary Gas Chromatography

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DEFINITION
This method is for the determination of mono- and diglycerides by capillary GLC. Mono- and diglycerides are converted with bis(trimethylsilyl)trifluoroacetamide (BSTFA) and trimethylchlorsilane (TMCS) in pyridine into more volatile trimethylsilylether derivatives and determined by capillary GLC.

SCOPE
This method is applicable to mono- and diglyceride concentrates and mono- and diglycerides in fats and oils (see References, 1). Other emulsifiers and components of fats and oils, such as glycerol, fatty acids, sterols, etc., may be converted into the trimethylsilylether derivatives and analyzed by the same GLC procedure. For the identification of the components, coupled GC/MS may be advantageous.

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