title: Determination of dimethylpolysiloxane in instant coffee.
abstract: A method is described for determining dimethylpolysiloxane in instant coffee. The siloxane is extracted with chloroform in a Soxhlet apparatus and then converted to silica which is estimated by a heteropoly blue method. The method is interference-free, and 5 microgram dimethylpolysiloxane can be easily detected.
mesh_terms: D003069:Coffee / Q000032:analysis*; D004129:Dimethylpolysiloxanes / Q000032:analysis*; D005503:Food Additives / Q000032:analysis*; D008722:Methods; D012828:Silicones / Q000032:analysis*
chemical_list: D003069:Coffee; D004129:Dimethylpolysiloxanes; D005503:Food Additives; D012828:Silicones