Noun
A substance capable of producing with another a reaction, especially when employed to detect the presence of other bodies; a test.
Source: Webster's dictionaryAfter proper mixing of the sample and the reagent, the mixture is incubated for 10 minutes at ambient temperature and the absorbance of the solution is read at 440 nm. Source: Internet
A further oxidation reaction involves Fehling's reagent as a test. Source: Internet
A curium compound is then selectively extracted using multi-step chromatographic and centrifugation techniques with an appropriate reagent. Source: Internet
Also, TLC plates can be visualized if the compounds or a coloring reagent is fluorescent. Source: Internet
Buffer capacity for a 0.1 M solution of an acid with pK a of 7 Water itself is a buffering medium, even in the absence of an added buffering reagent. Source: Internet
As a reagent and solvent in the laboratory Sulfur dioxide is a versatile inert solvent widely used for dissolving highly oxidizing salts. Source: Internet