1961
DOI: 10.1093/ajcp/36.3_ts.277
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Standardization of the Electronic Counter of Blood Cells

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1966
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Cited by 10 publications
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“…5 In actual test, our preparation was highly suitable for this purpose. Latex and pollen suspensions used for standardization of electronic leukocyte counts may aggregate and clog the electronic counter, 3,5 but this leukocyte preparation never caused such a problem. Leukocytes in fresh preparations for quality control are usable for only 24 hours when stored at 4 C. 2 Stabilized erythrocytes 5 and platelets 6 have been successfully used for quality control in electronic counting of both types of cells before; the present report, to the best of our knowledge, appears to be the first description of a stabilized leukocyte suspension for quality control.…”
Section: Discussionmentioning
confidence: 99%
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“…5 In actual test, our preparation was highly suitable for this purpose. Latex and pollen suspensions used for standardization of electronic leukocyte counts may aggregate and clog the electronic counter, 3,5 but this leukocyte preparation never caused such a problem. Leukocytes in fresh preparations for quality control are usable for only 24 hours when stored at 4 C. 2 Stabilized erythrocytes 5 and platelets 6 have been successfully used for quality control in electronic counting of both types of cells before; the present report, to the best of our knowledge, appears to be the first description of a stabilized leukocyte suspension for quality control.…”
Section: Discussionmentioning
confidence: 99%
“…Latex particle, 3,7 pollen, 3 and commercial preparations of unspecified origin have been used for this purpose. A suspension of human leukocytes if made to be highly stable during simple and prolonged storage should serve the purpose well.…”
mentioning
confidence: 99%
“…Suitable red cell controls have been achieved by the use of glutaraldehyde-fixed red cells (Lewis and Burgess, 1966) and preserved human cells (Carville and Lee, 1969) and various artificial cell suspensions have been used such as polystyrene latex (Gabrielli and Wertheimer, 1961) Preliminary tests showed that yeast cells stored in formaldehyde/saline solution (10:90 v/v) were easily resuspended by gentle mixing, but thereafter sedimented quickly in the sample containers. It was found that the addition of Intradex to a final concentration of 10% raised the viscosity of the suspending fluid sufficiently to give a sedimentation rate of yeast cells similar to that of leucocytes.…”
mentioning
confidence: 99%
“…Suitable red cell controls have been achieved by the use of glutaraldehyde-fixed red cells (Lewis and Burgess, 1966) and preserved human cells (Carville and Lee, 1969) and various artificial cell suspensions have been used such as polystyrene latex (Gabrielli and Wertheimer, 1961) but it is difficult to prepare an even suspension of latex particles within the required size range.…”
mentioning
confidence: 99%