He developed a nutritional assay method for vitamin B12 using Euglena that was used for many years in hospitals to test for B12 levels in blood, eventually being replaced by other methods
12.
For example IMC has been evaluated for assessing antigen-induced lymphocyte proliferation ( Murigande et al . 2009 ) and revealed aspects of proliferation not seen using a conventional non-continuous radioactive marker assay method.
13.
The BCA protein assay method maintains the high sensitivity and low variability among proteins associated with the Lowry protein assay, while providing increased tolerance to the presence of non-ionic detergents and buffer salts.
14.
With continued research, decreasing cost, greater availability and wider acceptance of other " lipoprotein subclass analysis " assay methods, including NMR spectroscopy, research studies have continued to show a stronger correlation between human clinically obvious cardiovascular events and quantitatively measured particle concentrations.
15.
Unfortunately, in laboratory testing, there is no single gold standard assay to determine clinically-accepted antioxidant capacity due to numerous available assay methods, though there are several accepted popular assays that can be merged into a final result to produce a representative antioxidative value.
16.
Hogarth concluded that since Schutz had attempted to buy all the ore himself, he was unlikely to have tampered with the tests, and the'inescapable conclusion'is that the assay method was at fault, perhaps because of contamination from additives necessarily used in the process.
17.
:: : : Well, I'm ignorant of this field, but right after the section you quoted, that page goes on to say " The stability indicating test does not have to be the assay method used to determine product strength ", and I don't see anything there stating that the expiration date is determined by the time at which the active ingredient amount falls below some percentage.
