Molecules are chemicals. A particular chemical posses a characteristic feature of forming an unique product when it undergoes chemical reaction along with another chemical. So to identify the chemical "A", one may use chemical "B" or "X" to react with chemial "A" to identify the formation of a product "AB" or "AX". This may many times evident by changes in color.
The preferred methods of diagnosis use simple and very accurate blood and cerebrospinal fluid (CSF) tests that detect the presence of an antigen produced by the fungus.
Pus in the urine is called by an infection. To know which kind tests must be run. If you are sexually active, it could be gonorrhea.
Starch
Employment tests, pregnancy tests, drug tests, blood and urine tests for medical examinations, etc.
because the indicator used will only react with certain substances, as such the sudan IV test, sudan IV only soluble in lipid, not water...
Blood and urine tests can reveal the presence of amyloid protein, but tissue or bone-marrow biopsy is necessary to positively diagnose amyloidosis.
Sudan tests for the presence of lipids ;D
chemical tests used to detect or quantify a specific substance, the analyte, in a blood or body fluid sample, using an immunological reaction
Osteopetrosis is usually diagnosed when x rays reveal abnormalities or increases in bone density. Bone biopsy can confirm the presence of osteopetrosis, but additional tests may be needed to distinguish one type of the disorder from another.
The amount of body fat affects the storage in the system, but for most people this is 48-72 hours. However, drug testing can reveal the "fingerprint" of the THC for a month, with some tests (not typically used) able to reveal presence as much as 3 months later.
basis of molisch testMolisch's Test is a sensitive chemical test for the presence of carbohydrates, based on the dehydration of the carbohydrate by sulfuric acid to produce an aldehyde, which condenses with two molecules of α-naphthol, though other phenols (e.g. resorcinol, thymol) also give colored products) resulting in a purple-colored compound (indicated by appearance of a purple ring at the interface between the acid and test layers).
It tests for the presence of starches in an organic compound..
Blood tests will determine the cell counts and obtain information on how well the organs, such as the kidney and liver, are functioning.
lipid
Iodine turns blue in the presence of starch.
The Resin of a tree used as a reagent in tests for the presence of blood
Molisch's Test is a chemical test for the presence of carbohydrates, based on the dehydration of the carbohydrate by sulfuric acid to produce an aldehyde. Its importance is that it tests the presence of carbohydrates based on their dehydration,