Spectrophotometric determination of ammonia with chloramine T and thymol
نویسندگان
چکیده
منابع مشابه
Titrimetric And Spectrophotometric Determination Of Salbutamol Sulphate In Pharmaceuticals Using Chloramine-T And Two Dyes
Four new methods are described for the assay of salbutamol sulphate(SBS) in bulk drug and in dosage forms using chloramine-T and two dyes, methyl orange and indigocarmine, as reagents. In direct titrimetry (method A), aqueous solution of SBS is titrated with chloramine-T(CAT) in hydrochloric acid medium and in the presence of excess of potassium bromide, using methyl orange indicator. Back titr...
متن کاملSpectrophotometric determination of sulfur dioxide in air, using thymol blue.
A simple and sensitive spectrophotometric method was developed for the determination of trace amounts of sulfur dioxide. The method is based on the reaction of SO2 with a known excess of ICI as the oxidant. The unreacted ICI iodinates thymol blue under acidic conditions. The lambdamax of thymol blue is at 545 nm under acidic conditions, and on lodination lambdamax shifts to 430 nm. This shift r...
متن کاملSpectrophotometric Determination of Ammonia in Inorganic Compounds
Nitrogen constitutes 78.09% by volume of dry unpolluted air, but it is a minor element with respect to its abundance in the earthj:"crust. Atmospheric nitrogen forms an important raw material for the economical synthesis of bulk chemicals of industrial importance, viz. ammonia, urea, nitrate, nitrite etc. Therefore, estimation of ammonia and its derivatives assumes a great importance for chemic...
متن کاملDetermination of chloramine T in dairy products.
A method has been developed for the quantitative determination of traces of chloramine T (Activin, Halamid) in dairy products. Proteins are removed and the hydrolysis product toluene-4-sulphonamide is extracted with ether. After evaporation of the solvent, the residue is oxidized with an alkaline potassium permanganate solution. The oxidized product is isolated by ether extraction and the resid...
متن کاملA highly sensitive spectrophotometric method for the determination of some phenothiazine antipsychotics using chloramine-T and indigocarmine.
A new simple, accurate and precise spectrophotometric method for the determination of six phenothiazine drugs in pure form and in dosage forms is described. The method is based on the oxidation of the studied drugs by a known excess of Chloramine-T in hydrochloric acid medium and subsequent determination of the unreacted oxidant by reacting it with indigocarmine in the same acid medium. The rea...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: BUNSEKI KAGAKU
سال: 1970
ISSN: 0525-1931
DOI: 10.2116/bunsekikagaku.19.1255