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Pubmed for Handhelds

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  • Title: Blood ammonia measurement using a simple reflectometer.
    Author: Ratnaike RN, Buttery JE, Hoffmann S.
    Journal: J Clin Chem Clin Biochem; 1984 Jan; 22(1):105-8. PubMed ID: 6421986.
    Abstract:
    We have assessed a compact Blood Ammonia Checker System (Ammonia Checker) consisting of a reflectometer which measures the intensity of colour formed by blood ammonia on a bromocresol green indicator reagent plate. The results show good correlation (r = 0.95) with our routine chemical method and a regression line y = 0.835X - 1.468. The Ammonia Checker has good precision (CV less than 10%) at the critical blood ammonia concentration and accurately measures predetermined ammonia concentrations. Blood sampling is improved with a precision pipette. The Ammonia Checker is simple, convenient and reliable and is ideally suited for a laboratory required to perform an urgent blood ammonia measurement.
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