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An evaluation of the Vickers Instruments J12 cell counter
  1. D. E. Pegg,
  2. A. C. Antcliff1
  1. Westminster Medical School and the Westminster Hospital, London


    The Vickers J12 cell counter uses an optical hydraulic counting system to perform rapid automatic counts of leucocytes and erythrocytes in liquid suspension. The effect of sample storage, the use of different diluents, variation in cell dimensions and other relevant factors have been studied. A counting accuracy of ± 1·19% for replicate erythrocyte counts and ± 2·94% for leucocyte counts was obtained.

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    • 1 Present address: Department of Chemical Pathology, Postgraduate Medical School, Hammersmith, London.