assays
Chemical composition checks
Assays are tests that analyze a substance to determine its composition, quality, or potency.
The word appears most often in scientific and medical contexts: laboratory assays, drug assays, the assay detected trace amounts of lead.
In older usage, to assay meant to attempt or try—a sense now largely replaced by essay as a verb.
The testing sense dominates: to assay a sample is to subject it to analysis.
Test using living tissue
- titrationMeasuring concentration by addition
- reagentSubstance prompting chemical change
- specimenIndividual for examination
- calibrationAdjusting for measurement accuracy
in-vitro · microbiology · toxicology · biochemistry · control · baseline · protocol · pipette
Concerning measurable amounts
- qualitativeRelating to characteristics, not quantities
- measurementDetermining size or amount
- evaluationDetermining worth or quality
- validationConfirming truth or accuracy
interpretation · results · findings · diagnostic · screening · determination · concentration · purity
Metal-bearing rock
- goldElement seventy-nine
- silverLustrous white precious metal
- sampleSubset for study
- purityUncontaminated quality
concentration · mineralogy · prospecting · refining · smelting · precious · metallurgy · bullion
bioassay
Test using living tissue
- titrationMeasuring concentration by addition
- reagentSubstance prompting chemical change
- specimenIndividual for examination
calibration · in-vitro · microbiology · toxicology · biochemistry · control · baseline · protocol · pipette · culture
quantitative
Concerning measurable amounts
- qualitativeRelating to characteristics, not quantities
- measurementDetermining size or amount
- evaluationDetermining worth or quality
validation · interpretation · results · findings · diagnostic · screening · determination · concentration · purity · potency
ore
Metal-bearing rock
purity · concentration · mineralogy · prospecting · refining · smelting · precious · metallurgy · bullion · grade
- lab suppliesbeakers, beaker, test tubes, test tube, pipettes
- laboratorybeaker, test tube, flask, microscope, pipette
- Gold RushCalifornia Gold Rush, gold miners, gold mining, gold flakes, gold nuggets
- chemistryatom, atoms, organic chemistry, molecule, chemistry
- lab sciencebiology, chemistry, physics, microbiology, biochemistry
- Analytical Chemistryanalyte, titration, chromatography, spectroscopy, concentration