Identification Tests Acetate

Aconitine produces an intense tingling sensation when a drop of a solution, 1 in 10,000, is applied to the tip of the tongue. It also gives a characteristic unstable, crystalline precipitate when a few drops of potassium permanganate solution are added to a solution of the alkaloid in dilute acetic acid. The formation of acetic acid when the alkaloid is heated dry, or of benzoic acid when it is hydrolysed by alkali, have also been suggested as identification tests. For the recognition of minute quantities a biological test is probably the best procedure. ... 

This solution is extracted several times with 5% acetic acid, until the silico-tungstate test (an identification test for alkaloids) yields a negative result, and the acetic solutions are washed with 10 ml ether. 

A number of identification tests are described for cortisone acetate in the British Pharmacopoeia [3],... 

The following identification tests are mentioned under cortisone acetate in the USP [71]. 

B. Place 1 drop of the solution from Identification Test A on a filter paper, and evaporate the solvent. Add 1 drop of a saturated solution of o-toluidine in glacial acetic acid, and place the paper over ammonium hydroxide. A green-blue spot develops. 

Identification A sample meets the requirements of Identification Tests A and B in the monograph for RRR-a-Tocopheryl Acetate. 

Borneol, (S3)66, 96 Bornyl Acetate, 460, 648 Z-Bornyl Acetate, 460 Bound Styrene, 782 Bovine Rennet, 133, (S3) 18 Brewer s Yeast, 440 Brilliant Blue FCF, 139, (S3)24 Bromelain, 132, 786, (S3)18 Bromide Identification Test, 753 Brominated Vegetable Oil, 48 Bromine, 0.1 N, 856 Bromine TS, 850 Bromine Water, 850 Bromocresol Blue, 860 Bromocresol Blue TS, 850... 

Cinnamyl Propionate, 472, 614, (Sl)64 cis and lruns Changed to (Z) and (E), xvi Citral, 472, 651, (Sl)64 Citrate Identification Test, 753 Citric Acid, 102, (S3)12 Citridic Acid, 15 Citronellal, 472, 652, (Sl)64 Citronellol, 472, 683 Citronellyl Acetate, 472, 652 Citronellyl Butyrate, 472, 614 Citronellyl Formate, 474, 683 Citronellyl Isobutyrate, 474, 614, (Sl)66 Citronellyl Propanoate, 474 Citronellyl Propionate, 474, 652 Citrus Oils, Ultraviolet Absorbance of,... 

Cobalt(II) ion forms a deep blue solution with an excess of monothiophosphate ion in a solution made slightly alkaline with sodium acetate. This reaction can be used as a qualitative identification test for cobalt(II) ion in the presence of nickel(II) ion.8 Monothiophosphate ion reacts with lead ion in cool solution to form a white precipitate, which turns brown to black when the suspension is heated. 

The methods for measuring impurities in samples should be sensitive. In contrast identification tests should be rather insensitive. For example the flame test for sodium ions will give a positive even with trace amounts present hence the use of the precipitation method with zinc uranyl acetate in pharmacopoeias. 

A new HP-TLC method has been applied for the quantitative analysis of flavonoids in Passiflora coerulea L. The objective of the experiments was the separation and identification of the compound(s) responsible for the anxiolytic effect of the plant. Samples were extracted with 60 per cent ethanol or refluxed three times with aqueous methanol, and the supernatants were employed for HPTLC analysis. Separation was performed on a silica layer prewashed with methanol and pretreated with 0.1 M K2HP04, the optimal mobile phase composition being ethyl acetate-formic acid-water (9 1 l,v/v). It was established that the best extraction efficacy can be achieved with 60 - 80 per cent aqueous methanol. The HPTLC technique separates 10 different flavonoids, which can be used for the authenticity test of this medicinal plant [121],... 

Tauber test (analy chem) A color test for identification of pentose sugars the sugars produce a cherry-red color when heated with a solution of benzidine in glacial acetic acid. tau-bor, test ... 

In the Franchimont test [42], nitramines are reduced to nitrite ions by zinc and acetic acid and then subjected to the Griess reaction. A modification of this test was used for the identification of nitramine impurities in RDX [43]. 

A simple spot test was used for the identification of procaine, and other drugs [30], The method uses one or more of the following reagents 0.4% Alizarin red S (C.I. Mordant Red 3) in 20% acetic acid, 0.3% indigo carmine (C.I. Acid Blue 74), 0.4% indigo carmine in 30% acetic acid,... 

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