Chemical test
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210291348
2008-05-05T10:07:28Z
Dust429
6765108
test for fat
In [[chemistry]], a '''chemical test''' is [[qualitative]] or [[quantitative]] procedure designed to prove the existence of, or to quantify, a [[chemical compound]] or [[substituent|chemical group]] with the aid of a specific [[reagent]]. A [[presumptive test]] is specifically used in medical science.
==Biochemical tests==
* [[Clinistrip]]s quantitatively test for [[sugar]] in [[urine]]
* The [[Kastle-Meyer test]] tests for the presence of [[blood]]
* [[Salicylate testing]] is a category of drug testing that is focused on detecting salicylates such as acetysalicylic acid for either biochemical or medical purposes.
* [[Tincture of iodine|Iodine solution]] tests for [[starch]]
* The [[Van Slyke determination]] tests for specific [[amino acid]]s
* The [[Zimmermann test]] for Ketosteroids
* [[Seliwanoff's_test]] for differentiating between aldose and ketose sugars
* Test for [[fat]]: add [[ethanol]] to sample, then shake; add water to the solution, and shake again. If fat is present, the product turns MILKY WHITE.
===Reducing sugars===
* [[Barfoed's test]] tests for reducing [[monosaccharide]]s or [[disaccharide]]s
* [[Benedict's reagent]] tests for [[reducing sugar]]s or [[aldehyde]]s
* [[Fehling's solution]] tests for [[reducing sugar]]s or [[aldehyde]]s, similar to [[Benedict's reagent]]
* [[Molisch's test]] for carbohydrates
===Proteins and polypeptides===
* The [[Bicinchoninic acid assay]] tests for [[protein]]s
* [[Biuret reagent]] tests for [[protein]]s and [[polypeptide]]s
* [[Bradford protein assay]] measures [[protein]] quantitatively
==Organic tests==
* The [[Carbylamine reaction]] tests for primary [[amine]]s
* The [[Griess test]] tests for organic nitrite compounds
* The [[Iodoform reaction]] tests for the presence of methyl [[ketone]]s, or compounds which can be oxidized to methyl ketones
* The [[Schiff test]] detects [[aldehyde]]s
* [[Tollens' reagent]] (Silver Mirror) tests for [[aldehydes]]
* The [[Zeisel determination]] tests for the presence of [[ester]]s or [[ether]]s
*[[Lucas' reagent]] is used to determine mainly between [[primary alcohol|primary]], [[secondary alcohol|secondary]] and [[tertiary alcohol|teriary]] alcohols.
==Inorganic tests==
* [[Barium chloride]] tests for [[sulfate]]s
* The [[Beilstein test]] tests for [[halide]]s qualitatively
* [[Borax bead test]] tests for certain [[metal]]s
* The [[Carius halogen method]] measures [[halide]]s quantitatively
* [[Chemical test for cyanide]] tests for the presence of [[cyanide]], CN<sup>-</sup>
* [[Copper sulfate]] tests for presence of water
* [[Flame test]]s test for [[metal]]s
* The [[Gilman test]] tests for the presence of a [[Grignard reagent]]
* The [[Kjeldahl method]] quantitatively determines the presence of [[nitrogen]]
* [[Nessler's reagent]] tests for the presence of [[ammonia]]
* [[Ninhydrin]] tests for [[ammonia]] or primary [[amine]]s
* The [[sodium fusion test]] tests for the presence of [[nitrogen]], [[sulfur]], and [[halide]]s in a sample
* The [[Zerewitinoff determination]] tests for any acidic hydrogen
==References==
<references/>
[[Category:Chemical tests]]
[[Category:Analytical chemistry]]