Detection of Nitrogen in an Organic Compound – MeitY OLabs

Detection of Nitrogen in an Organic Compound There are many organic compounds such as amines, amides, nitro compounds and urea containing nitrogen as one of the main elements. Nitrogen is covalently bonded to the organic compound. Upon fusion with sodium metal, the covalently bonded nitrogen is converted to ionic sodium cyanide, which can be extracted […]

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Voges-Proskauer Test – Amrita University

In 1898 Voges and Proskauer characterized the fermentation of sugars by various bacterial isolates. This method was suggested for differentiation between bacterial isolates that produced coloration and those that did not. Both the methyl red and Voges-Proskauer tests are commonly used in conjunction with the indole and citrate tests, to form a group of tests […]

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Detection of Elements: Lassaigne’s Test – MeitY OLabs

Detection of Elements: Lassaigne’s Test Preparation of Lassaigne’s Extract We require china dish, organic compound, funnel, tripod stand, wire gauze, distilled water, Bunsen burner, fusion tubes, test tube, sodium metal, small spatula, forceps etc. Take a small piece of sodium metal using the forceps. Place the sodium metal piece on a filter paper and dry […]

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Detection of Adulteration in Milk – Amrita University

Detection of Adulteration in Milk Adulteration in milk considerably reduces the quality of milk. Soap, acid, starch, table sugar and chemicals like formalin are some of the adulterants added to milk. Most of the chemicals used as adulterants are poisonous and can cause health hazards. Here are some tests to find out some of the […]

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