Colorimetric determination of m-Aminophenol in Sodium p-Aminosalicylate
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چکیده
منابع مشابه
Quantitative colorimetric determination of urinary p-aminophenol with an automated analyzer.
We developed an automated colorimetric method for the quantitative determination of p-aminophenol with a Cobas Mira analyzer. The procedure can be used for the biological monitoring of human exposure to aniline. An absorbed aniline dose is extensively oxidized to p-aminophenol, which is excreted in urine mainly as glucurono- and sulfo- conjugates. After enzymatic hydrolysis, we reacted the free...
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Two methods for the determination of N-acetyl-p-aminophenol (APAP) in plasma that differ in principle from the diazotization procedure of Brodie and Axelrod (1) are described. One method based on the differential absorption peak of APAP at 266 m, which corresponds to the isosbestic point of common drugs such as acetylsalicylic and salicylic acids, is simple and most specific for APAP. The other...
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The use of a-isonitrosopropiophenone, CS& *CO * CNOH. CH3, as a reagent for the calorimetric determination of urea has been mentioned in a previous communication (1). The present report outlines a simple method for the calorimetric determination of urea in blood filtrates and urine by means of this reagent and compares the values obtained by this method with those given by the urease ((2), (3) ...
متن کاملColorimetric Determination of Urea by Reginald M. Archibald
The use of a-isonitrosopropiophenone, CS& *CO * CNOH. CH3, as a reagent for the calorimetric determination of urea has been mentioned in a previous communication (1). The present report outlines a simple method for the calorimetric determination of urea in blood filtrates and urine by means of this reagent and compares the values obtained by this method with those given by the urease ((2), (3) ...
متن کاملApplication of Mixed Micelle-Mediated Extraction for Selective Separation and Spectrophotometric Determination of P-Aminophenol Impurity in Pharmaceutical Formulations
A procedure for separation/preconcentration of para-aminophenol (PAP) in pharmaceutical formulation, based on cloud point extraction (CPE) as a prior step to determination by UV-Vis spectrophotometry has been developed. The analyte reacted with 4-dimethylamino benzaldehyde (DAB) in acidic media to form a shift base, which were separated and preconcentrated in a mixed micelle of the anionic surf...
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ژورنال
عنوان ژورنال: YAKUGAKU ZASSHI
سال: 1952
ISSN: 0031-6903,1347-5231
DOI: 10.1248/yakushi1947.72.7_972