Clinical Chemistry
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Clinical Chemistry 26: 1883-1886, 1980;
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Clinical Chemistry, Vol 26, 1883-1886, Copyright © 1980 by American Association for Clinical Chemistry

Measurement of urinary constituents with the Astra-8 Multichannel Analyzer

TA Blumenfeld and B Griffith

The Beckman Astra-8 is a computerized, discrete-microsample, multiple- test clinical chemistry analyzer. We have examined its capability to measure urine Na+, K+, Cl-, urea nitrogen, glucose, and creatinine and found that (a) the Astra measurements are linear, accurate, and precise in concentration ranges of urine analytes; (b) urine analyte concentrations measured with the Astra correlate well with those by comparison micromethods (p < 0.001); and (c) the Astra has no significant carryover from adjacent urine samples or from adjacent urine and serum samples.




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Copyright © 1980 by the American Association for Clinical Chemistry.