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 ~ 2% sulphite per h.
How stable are the sulfite standards and samples used with theTotal and Free Sulfite Assay Kit (K-SULPH) ?
Modified on: Wed, 20 Apr, 2016 at 12:36 PM
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