Ads
related to: nitrite test kit
Search results
Results From The WOW.Com Content Network
A nitrite test is a standard component of a urinary test strip. A positive test for nitrites in the urine is called nitrituria. This test is commonly used in diagnosing urinary tract infections (UTIs). A positive nitrite test indicates that the cause of the UTI is a Gram-negative organism, most commonly Escherichia coli. The reason for nitrites ...
In this test, a solution of diphenylamine and ammonium chloride in sulfuric acid is used. In the presence of nitrates, diphenylamine is oxidized, giving a blue coloration. This reaction has been used to test for organic nitrates as well, [7] and has found use in gunshot residue kits detecting nitroglycerine and nitrocellulose. [8]
The test for nitrites is a rapid screening method for possible asymptomatic infections caused by nitrate-reducing bacteria. Some of the gram negative bacteria species that most commonly cause urinary tract infections ( Escherichia coli , Enterobacter , Klebsiella , Citrobacter and Proteus ) have enzymes that reduce the nitrate present in urine ...
The test was used in forensics for many years to test for the traces of nitroglycerine. Caustic soda is used to break down sample containing nitroglycerine to produce nitrite ions. The test involves the taking of a sample with ether and its division into two bowls. Caustic soda is added to the first bowl followed by the Griess reagent; if the ...
A Pesticide detection kit is a kit that scientific test kit detects the presence of pesticide residues. Various organizations create them, among them Defence Food Research Laboratory of India . [ 1 ]
The Liebermann reagent named after Hungarian chemist Leo Liebermann (1852-1926) is used as a simple spot-test to presumptively identify alkaloids as well as other compounds. It is composed of a mixture of potassium nitrite and concentrated sulfuric acid. [1] [2] 1 g of potassium nitrite is used for every 10 mL of sulfuric acid. [3]
Ad
related to: nitrite test kit