Particle standard and method of calibrating or validating an optical particle analyzer
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United States of America Patent
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Jan 24, 2012
Grant Date -
Dec 17, 2009
app pub date -
Aug 28, 2009
filing date -
Sep 13, 2007
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Abstract
The present invention provides a particle standard including particles having optical properties similar to those of a carrier in which the particles are dispersed, as well as a method of calibrating or validating a subject optical particle analyzer with respect to a reference optical particle analyzer by using the particle standard. In the method, the particle standard is analyzed with the reference optical particle analyzer to obtain a reference particle concentration and a reference particle-size distribution. Analogously, the particle standard is analyzed with the subject optical particle analyzer to obtain a subject particle concentration and a subject particle-size distribution. The subject particle concentration and the subject particle-size distribution are then compared to the reference particle concentration and the reference particle-size distribution, respectively, and the subject optical particle analyzer is adjusted accordingly.
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