Assay sentence example

assay
  • The method is sometimes employed in the assay of gold.

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  • In 1864 a public assay office was established.

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  • Both the St Francois and Jasper ores yield from 70 to 75% of metal in final product, and assay even higher.

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  • Varrentrapp pointed out that " cornets " from the assay of gold may retain gas if they are not strongly heated.

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  • Pieces are cut out for assay, and the bars are then ready for rolling.

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  • Helena is delightfully situated with Mt Helena as a background in the hollow of the Prickly Pear valley, a rich agricultural region surrounded by rolling hills and lofty mountains, and contains many fine buildings, including the state capitol, county court house, the Montana club house, high school, the cathedral of St Helena, a federal building, and the United States assay office.

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  • The methods used in the assay for iron are volumetric, and are all based on the property possessed by certain reagents of oxidizing iron from the ferrous to the ferric state.

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  • Sefstrom's blast furnace, used in Sweden for the assay of iron ores, is a convenient form of portable furnace applied to melting in crucibles.

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  • The receipt of bullion and the delivery of coin from the Mint is under the charge of the chief clerk, the manufacture of coin is in the hands of the superintendent of the operative department, and the valuation of the bullion by assay, and matters relating to the fineness of the coin are entrusted to the chemist and assayer.

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  • The principal buildings are the state capitol, the United States assay office, a Carnegie library, a natatorium, and the Federal building, containing the post office, the United States circuit and district court rooms, and a U.S. land office.

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  • The fire assay for copper ores was abandoned years ago and the electrolytic method took its place; this in turn is now largely replaced by volumetric methods.

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  • Various portions, each weighing 10 seers (of 23 5 lb), are selected by test assay so as to ensure the mass being of standard consistence (70% of the pure dry drug and 30% of water), and are thrown into shallow drawers and kneaded together.

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  • Members expressed concerns that the in-vivo rat liver UDS assay had not been conducted to modern standards.

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  • Relative luciferase activity of NFKBIA -689 T type was also significantly higher than A type using luciferase activity of NFKBIA -689 T type was also significantly higher than A type using luciferase assay.

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  • Negative results in such an assay would provide full reassurance with regard to oral exposure of rats to technical grade malathion.

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  • The effect of the alkaloid was also tested in an in vivo assay using BALB/c mouse bone marrow cells.

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  • In the first instance this should be in the in-vivo bone marrow micronucleus assay.

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  • Indicate that the Committee believes that routine screening for aneugenicity is possible using the in vitro micronucleus assay with centromeric staining.

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  • Of interest is the Dynabeads assay, an alternative method for providing CD4 cell counts using anti-CD4 monoclonal antibody-coated magnetic beads.

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  • In 1995 the Committee assessed all the available published literature on the use of this assay to detect chemical mutagens.

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  • No single activated oncogene can be detected in a transformation assay.

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  • Biochemical and molecular approaches are used to assay mediator release and to identify and manipulate proteins required for movement and exocytosis of secretory organelles.

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  • The potential of uveal melanoma cell lines to convert plasminogen to angiostatin was tested in an in vitro assay.

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  • A minimum of five normal sera should be used to determine the normal range in a given assay.

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  • A cell culture assay is a lab test performed on a biopsy specimen containing living cancer cells.

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  • The mouse vas deferens turned out to be an extremely sensitive quantitative assay for CB1 agonists.

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  • This research in the area of molecular biology, involved reporter assay methods to quantify gene expression and immunological techniques to measure protein concentrations.

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  • We demonstrated that Chp2 binds both C. abortus elementary bodies and reticulate bodies in an enzyme-linked immunosorbent assay.

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  • Further Development and Commercialisation Further clinical sampling is required to refine the sensitivity of the assay.

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  • In such cases a laboratory analysis and sensitivity assay is essential.

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  • Two cases of breast carcinoma and two cases of ovarian carcinoma were also included as positive controls in the telomerase assay.

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  • These studies are aimed at developing high throughput assay procedures.

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  • Indirect immunofluorescent antibody assay (or IFA) test can only find the secondary stage of the virus.

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  • Your veterinarian will likely use an ELISA (enzyme-linked immunosorbent assay) test.

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  • If the feline leukemia test is positive, your veterinarian will likely follow up with more definitive testing using a immunofluorescence assay (IFA).

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  • Unlike the preliminary test, this test or assay will need to be sent out to a lab for further analysis.

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  • Any puppy or dog suspected of suffering from parvo should undergo an enzyme-linked immunosorbent assay antigen test (ELISA), commonly called the CITE test.

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  • A liver biopsy may be performed to test for levels of enzymes present (aldolase assay) and to evaluate the extent of damage to the liver.

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  • Immunological tests such as Enzyme-linked immunosorbent assay (ELISA) are also widely used for diagnosis, and several commercial kits are available.

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  • A related blood test, fructosamine assay, measures the amount of albumin in the plasma that is bound to glucose.

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  • This screening procedure is referred to as the Guthrie test (Guthrie bacterial inhibition assay).

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  • Radioallergosorbent assay test (RAST) or skin testing can identify food hypersensitivity.

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  • If the ring has been hallmarked, then the metal has actually been tested by an independent assay office, thus giving you an assurance of what you are buying.

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  • These rings are created in 14k and 18k gold and hallmarked by the Irish Assay Office.

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  • There are several public assay offices in Italy for silk; the first in the world was established in Turin in 1750.

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  • In 1859 the mines were worked only for their gold; the ignorant miners threw away the " black stuff " which was really valuable silver ore with an assay value four times as great as that of their ores of gold; and when this was discovered there came a period of unprecedented silver production.

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  • The metals he produced are said to have proved genuine on assay; when, however, in the following year he was challenged to repeat the experiments he was unable to do so and committed suicide.

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  • A third addition becomes necessary to remove the rest of the silver, when the lead will assay only o I oz.

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  • At present all gold bullion brought to the Mint is weighed and portions are cut off for assay.

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  • There is a United States assay office, established as a branch mint in 1837, during the days of North Carolina's great importance as a gold producing state, and closed from 1861 to 1869.

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  • The goldsmiths had the assay of metals, the fishmongers the oversight of fish, the vintners of the tasting of wine, &c. The companies enforced their regulations on their members by force.

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  • One of the customs which has grown out of our peculiar system of weights is the form of statement of the results of such an assay.

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  • The .amount of ore taken for assay is generally one-half "A.T.," but in very low-grade ores one, two, and sometimes even four "A.T.s" are used.

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  • As the slag thus formed flows off to the sides of the scorifier, the assay clears and the melted metallic lead forms an "eye" in the middle.

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  • Ores containing much arsenic or sulphur are generally roasted at a low heat and the assay is made on the roasted material.

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  • The "dry" or fire assay for lead is largely used for the valuation of lead ores, although it is being gradually replaced by volumetric methods.

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  • One gramme of ore is usually taken for assay and treated in a small flask or beaker with 10 cc. of hydrochloric acid.

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  • Will the assay results provide any clues not only to possible sources but also to purity or the possible adulteration of the specimens?

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  • A reliable assay is needed to be able to measure binding affinity.

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  • Internal quality control was performed by regular analyzes of stored plasma aliquots, and was satisfactory during the assay period.

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  • The comparator was an enzyme-linked immunosorbent assay (ELISA ).

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  • A negative result had been reported in an adequate oral bone marrow mouse micronucleus assay.

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  • A positive result has been obtained in a mouse lymphoma assay 13,14.

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  • Furthermore the Committee felt that there was little to be gained by the additional in-vitro assay for DNA damage.

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  • A similar result was obtained by Kinghorn & Evans (1975a) with the latex using a mouse ear irritancy assay.

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  • Comet assay results were given for 8 organs in the mouse with 208 chemicals for which carcinogenicity bioassay data were available.

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  • However, the luciferin-luciferase bioluminescence assay proved extremely reliable and suitable for automation.

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  • Further consideration was given to the negative results in the single dose UDS assay in the forestomach of mice using gavage dosing.

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  • Members stated that the 72 hour incubation period used in the micronucleus assay was inappropriate.

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  • Bullion, whether in the form of coins, or of bars and ingots stamped, is subject, as a general rule of the London market, not only to weight but to assay, and receives a corresponding value.

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  • Alwar was the first native state to accept a currency struck at the Calcutta mint, of the same weight and assay as the imperial rupee, with the head of the British sovereign on the obverse.

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