What are acceptable sample hold times for samples submitted for low level metals analysis in waters?

Modified on: Fri, 3 May, 2019 at 1:08 PM


As a rule, it is ideal to analyse environmental samples as soon as possible after collection to minimize any changes to the sample or the parameters of interest over time.  


Maximum hold time for  preserved samples submitted for ultratrace metals analyses is 180 days and 28 days for mercury,



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