Sulphite as SO2 in Brown Sugars by the Optimized Monier-Williams and HPIC

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ICUMSA Method GS3-52 (2019)

online version (2 years license)

Year of Publication: 2019

Description

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Method Abstract

This method is used for the determination of sulphur dioxide (SO2) in brown sugars and speciality sugars.

The method procedure is similar to that used in Method GS3-51 where the sulphite present is oxidised to sulphate. The difference being that the resultant sulphate is determined instrumentally using HPIC.

The method has been shown to have a limit of decision in brown sugar of 10 mg/kg and a limit of detection (LoD) of 20 mg/kg. For total sulphite content up to 70 mg/kg, the absolute difference between two results obtained under repeatability conditions should not exceed 8 mg/kg and under reproducibility conditions should not exceed 15 mg/kg.

 

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Author

ICUMSA Method GS3-52 (2019)

Type

online version (2 years license)