نتایج جستجو برای: fluorometric assay
تعداد نتایج: 223370 فیلتر نتایج به سال:
We describe a simple, rapid fluorometric assay for separate quantitative analysis of procainamide and N-acetylprocainamide in mixtures. The effective lenear range (fluorescence vs. concentration) in serum is 0.1 to 10.0 mg/liter, regardless of the ratio (by weight) of the two drugs from 1:10 to 10:1. Analytical recoveries by the extraction method used were 100.0 +/- 3.0% and 98.0 +/- 4.0%, resp...
We evaluated alamarBlue as a metabolic indicator in a standardized assay for the measurement of serum bactericidal activity (SBA) to Haemophilus influenzae type b (Hib) using sera containing natural and vaccine-induced anticapsular (polyribosylribitol phosphate) antibodies. SBA assays with a colorimetric and a fluorometric end point in the presence of alamarBlue were developed and compared to a...
The fluorometric neuraminidase assay method using 4-methylumbelliferyl-N-Ac-aD-neuraminide as a substrate was investigated for the purpose of ascertaining its validity as a procedure for influenza viral neuraminidase antibody inhibition test. The enzyme antibody inhibition titer obtained by the fluorometric assay system was far weaker than that obtained by the standard colorimetric neuraminidas...
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