We’ve gone andproliferated dozens of different assays, which in this case is basically more confusing than helpful.
Spit vs. Swab? Scientists say new studies support use of ‘saliva tests’ for COVID|Lee Clifford|September 5, 2020|Fortune
So far, each vaccine candidate has been tested using a different procedure—known as an assay— conducted in different labs.
Scientists to Wall Street: You don’t really understand how COVID vaccine tests work|Jeremy Kahn|August 24, 2020|Fortune
The issue of standardized antiboday assays is further complicated by the fact that different types of assays may be needed.
Scientists to Wall Street: You don’t really understand how COVID vaccine tests work|Jeremy Kahn|August 24, 2020|Fortune
Many of the same issues that bedevil comparing neutralizing antibody assays, apply equally to assays for T-cell responses.
Scientists to Wall Street: You don’t really understand how COVID vaccine tests work|Jeremy Kahn|August 24, 2020|Fortune
Such antibody assays in mid-April indicated that close to one-in-eight people who had been tested in New York State had antibodies to the new coronavirus.
Millions of likely U.S. COVID-19 cases have gone undiagnosed|Tina Hesman Saey|July 6, 2020|Science News For Students
But the next afternoon, and perhaps the next, we would return to the same cruxes, and often assay the same options.
Remembering Dmitri Nabokov, the Novelist’s Son and Literary Executor|Brian Boyd|May 10, 2012|DAILY BEAST
The ferricyanide had a small influence and, as might be expected, hyposulphite is fatal to the assay.
A Textbook of Assaying: For the Use of Those Connected with Mines.|Cornelius Beringer and John Jacob Beringer
I threw it into the fuming nitrous acid to assay it, and there arising a little effervescence, I added distilled water thereon.
Buffon's Natural History. Volume X (of 10)|Georges Louis Leclerc de Buffon
The assay should be carried out as much as possible in the same flask.
A Textbook of Assaying: For the Use of Those Connected with Mines.|Cornelius Beringer and John Jacob Beringer
The assay is doubtless correct, but the deductions therefrom are most misleading.
Getting Gold|J. C. F. Johnson
The rougher the method of assay adopted, the larger should be the quantity of ore taken.
A Textbook of Assaying: For the Use of Those Connected with Mines.|Cornelius Beringer and John Jacob Beringer
British Dictionary definitions for assay
assay
verb (əˈseɪ)
to subject (a substance, such as silver or gold) to chemical analysis, as in the determination of the amount of impurity
(tr)to attempt (something or to do something)
(tr; may take a clause as object)to test, analyse, or evaluateto assay the significance of early childhood experience
noun (əˈseɪ, ˈæseɪ)
an analysis, esp a determination of the amount of metal in an ore or the amounts of impurities in a precious metal
A quantitative determination of the amount of a given substance in a particular sample. Assays are regularly used to determine the purity of precious metals. They can be performed by wet methods or dry methods. In the wet method, the sample is dissolved in a reagent, like an acid, until the purified metal is separated out. In the dry method, the sample is mixed with a flux (a substance such as borax or silica that helps lower the melting temperature) and then the sample is heated to the point where impurities in the metal fuse with the flux, leaving the purified metal as a residue.