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A positive result in Barfoed's test is the formation of a brick-red precipitate within 1-2 minutes upon heating a solution of the carbohydrate being tested with Barfoed's reagent (copper acetate in acetic acid). This indicates the presence of a monosaccharide, particularly glucose or fructose, in the solution.
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What does a positive Molisch's test on an unknown substance indicate?
A positive Molisch's test result indicates the presence of carbohydrates.
Biochemical test results for proteus vulgaris?
Biochemical tests commonly used to identify Proteus vulgaris include urease test (positive result), indole test (negative result), motility test (positive result), citrate test (negative result), and carbohydrate fermentation tests (positive results for lactose and sucrose, negative result for glucose). These tests together help in confirming the presence of Proteus vulgaris in a given sample.
Is acetaminophen will give positive result to Lassaigne's test and ferrox paper test?
Acetaminophen is not expected to give a positive result in Lassaigne's test for nitrogen and sodium due to its lack of nitrogen-containing functional groups. Similarly, it is unlikely to give a positive result in the ferrox paper test, which is typically used for detecting the presence of phenols.
What is the result of citrate test for bacillus subtilis?
blue/positive
Name a nonfermentative test in which gas production indicates a positive test result?
The oxidase test is a nonfermentative test in which the presence of gas bubbles indicates a positive result. Gas bubbles result from the reaction of the test reagent with cytochrome c oxidase, which is present in certain bacteria like Pseudomonas species.
What is barfoed test?
The Barfoeds test will allow us to make a distinction between reducing monosaccharides and reducing disaccharides. If the Red tetrazolium test is done first and is positive for a reducing sugar, then the Barfoeds test will tell us if it is mono or di.
Did gelatin give positive result with xanthoprotic test?
yes,it give positive test
Will a pregnancy test show positive if I miscarried?
A pregnancy test can show a positive result if you have miscarried. There is still enough hormone in your body to produce a positive result.
What dosage of Vyvanse will result in positive amphetamine result?
Any amount of Vyvanse could result in a positive amphetamine test.
What is the positive result of nitroprusside test?
RED
What is the positive result for molisch test?
all carbohydrates show positive result to Molisch test. this is because Molisch test is used to distinguish carbohydrates from other organic compound.
Will Widal Test after positive resul after treatment in Typhoid?
I mean widal test result positive after treatment
What color is positive test result for glucose?
A positive test result for glucose is typically indicated by a color change to green, orange, or red, depending on the specific test method used.
What is the positive result for sakaguchi test?
A positive result for the Sakaguchi test is the formation of a white or yellow precipitate in the presence of arginine or histidine in the test sample. This precipitate forms when ninhydrin (reagent used in the test) reacts with the guanidine group of arginine or the imidazole group of histidine.
What does a positive Molisch's test on an unknown substance indicate?
A positive Molisch's test result indicates the presence of carbohydrates.
Can Lidoderm patch result in a positive test for cocaine?
No
Will superpump250 give a positive drug test result?
No
