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    Mercury Analysis in Water - Avoid Background Contamination 2

    mercuryanalyser

    by mercuryanalyser

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    http://mercuryanalyser.com/mercury-testing/mercury-analysis-in-water-how-to-prepare-your-reductant/ It is imperative to keep the background level under control otherwise you fail the QC automatically because of it. The high mercury background can come from the following sources:

    Deionized water
    Hydrochloric acid
    Tin(II) chloride
    Bromine solution
    Hydroxylamine hydrochloride
    Containers
    Carrier gas – argon
    Your lab environment
    Personal hygiene

    How to lower the background

    Use highest purity available for the chemicals
    Keep the concentrations as low as possible
    Use clean containers
    Boil your reductant and then purge it
    Filter your argon carrier gas
    Operate in environment
    Change gloves often to avoid cross contamination

    Part 2 of 2