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  2. Nitrate test - Wikipedia

    en.wikipedia.org/wiki/Nitrate_test

    Nitrate Test by using Brown Ring Test. A common nitrate test, known as the brown ring test [2] can be performed by adding iron(II) sulfate to a solution of a nitrate, then slowly adding concentrated sulfuric acid such that the acid forms a layer below the aqueous solution. A brown ring will form at the junction of the two layers, indicating the ...

  3. N-(1-Naphthyl)ethylenediamine - Wikipedia

    en.wikipedia.org/wiki/N-(1-Naphthyl)ethylenediamine

    However, the result should be adjusted for the nitrite ions present in the original sample. [5] This method can be applied in many aspects, including determining the nitrate/nitrite concentrations in sewage or other biological samples such as intracellular fluids, given that the sample is clear and colorless.

  4. Nitrite test - Wikipedia

    en.wikipedia.org/wiki/Nitrite_test

    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' existence in the presence of a UTI is due to a bacterial conversion of endogenous nitrates to nitrites. This may be a sign of ...

  5. Griess test - Wikipedia

    en.wikipedia.org/wiki/Griess_test

    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 ...

  6. Urinalysis - Wikipedia

    en.wikipedia.org/wiki/Urinalysis

    The presence of nitrites, which causes a pink color on the reagent strip pad, therefore acts as an indicator of urinary tract infection. [51] The nitrite test is quite specific, meaning that someone is likely to have a UTI if it is positive, but it is not sensitive; a negative result does not reliably indicate that the subject does not have a UTI.

  7. What Is Heart Disease? Everything You Need to Know - AOL

    www.aol.com/heart-disease-everything-know...

    Antiplatelet agents and dual antiplatelet therapy. These drugs, which include aspirin, prevent blood clotting in patients with various types of heart disease. ... such as nitrates, are strong ...

  8. Dental pulp test - Wikipedia

    en.wikipedia.org/wiki/Dental_pulp_test

    Dental pulpal testing is a clinical and diagnostic aid used in dentistry to help establish the health of the dental pulp within the pulp chamber and root canals of a tooth. Such investigations are important in aiding dentists in devising a treatment plan for the tooth being tested. There are two major types of dental pulp tests.

  9. Sen. Blumenthal says mysterious drones spotted recently ... - AOL

    www.aol.com/sen-blumenthal-says-mysterious...

    Sen. Richard Blumenthal, D-Conn., said the mysterious drones spotted in New Jersey over the past few weeks, and most recently in Connecticut, should be “shot down, if necessary."