Blood ammonia measurement using a simple reflectometer.

  title={Blood ammonia measurement using a simple reflectometer.},
  author={Ranjit Nihal Ratnaike and J. E. Buttery and Stephan Hoffmann},
  journal={Journal of clinical chemistry and clinical biochemistry. Zeitschrift fur klinische Chemie und klinische Biochemie},
  volume={22 1},
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… CONTINUE READING