期刊
出版社
IEEE
关键词
erythrocytes; leukocytes; cell concentration; reference measurement procedure; dead time correction; external quality assurance
A method is described to determine cell concentrations for erythrocytes and leukocytes with typical uncertainties of 0.8% and 2%, respectively. The unique method is designed in such a way that results are traceable to SI derived units. The sample suspensions are prepared under gravimetric control. The sample volume measured in cell counting is determined by weighing, including separate density measurements. Random coincidences are a significant challenge in particle counting leading to underestimated cell concentrations. In the method described here this challenge is met by recording the integrated dead time in particle counting and applying dilution series. This method is now routinely applied to provide reference measurement values for external quality assurance of German hematology laboratories for the complete blood count.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据