Assay of vitamin B12.
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Biomedical subjects
Publications and source records attributed to C J Priest.
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The Clay Adams Ultra-Flo 100 whole blood platelet counter is a semiautomated instrument. The count is made on dilute whole blood by the detection of comparatively small current changes induced by the cells suspended in a conducting diluent as they flow thrugh an orifice. Alarm systems are incorporated in the instrument to detect sample irregularities due to microcytosis, and large and small platelets. The results of this evaluation are given, and confirm that the results using the Ultra-Flo 100 compare very favourably with those obtained using phase contrast microscopy.
A new rapid slide test for the detection of infectious mononucleosis heterophile antibody has been compared with the Paul-Bunnell absorption test. Out of 200 sera, 46 were seropositive for infectious mononucleosis by the Paul-Bunnell test and 43 of these were detected by the Monosticon test; the three Monosticon-negative sera were of low titre. There was no problem with false positive reactions due to heterophile antibody not specific for infectious mononucleosis.
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