Total and Free Sulfite Assay Kit (K-SULPH)

What concentration of acetaldehyde in the sample causes interference in the total sulfite (TSO2) assay of the Total and Free Sulfite Assay Kit (K-SULPH)?
Interference by acetaldehyde is observed when the acetaldehyde concentration is higher than approximately 250 mg/L in the 0.05 mL sample using the TSO2 ...
Tue, 9 Aug, 2016 at 3:23 PM
How stable are the sulfite standards and samples used with theTotal and Free Sulfite Assay Kit (K-SULPH) ?
When the samples are prepared and are stored at the appropriate pH (~ pH 8 for total sulphite and ~ pH 4 for free sulphite) they will be expected to lose ...
Wed, 20 Apr, 2016 at 12:36 PM
When using the Total and Free Sulfite Assay Kit (K-SULPH) for quantitative analysis what level of accuracy and repeatability can be expected?
The test kit is extremely accurate – at Megazyme the quality control criteria for accuracy and repeatability is to be within 5% of the expected value usin...
Wed, 20 Apr, 2016 at 12:33 PM
Can Total and Free Sulfite Assay Kit (K-SULPH) be used to measure sulphite in food samples?
Yes. The Total and Free Sulfite Assay Kit can be used to measure total sulphite and free sulphite in food samples using the standard sample preparation p...
Wed, 20 Apr, 2016 at 12:37 PM
What is the range of the Total and Free Sulfite Assay Kit (K-SULPH)?
The Total Sulphite assay is linear over the range of 0.25 to 20 µg of TSO2 per assay. When prepared as per kit booklet, the 300 mg/L standard is equivale...
Wed, 20 Apr, 2016 at 12:38 PM
What is the detection limit of the Total and Free Sulfite Assay Kit (K-SULPH)?
The Total sulphite detection limit is ~ 5.28 mg/L, which is derived from an absorbance difference of 0.020 with a sample volume of 0.05 mL. The Free S...
Wed, 20 Apr, 2016 at 12:39 PM
What is the calculation of the conversion factor used for preparation of sulphite (sulfite) standards in the sulphite kits (K-SULPH, K-TSULPH, K-ETSULPH, K-FSULPH)?
The standard supplied with the sulphite kits is sodium sulphite (126.043 g/mol) and the results of the kit assays are given as mg/L of sulphur dioxide (6...
Thu, 10 May, 2018 at 3:16 PM