Polarographic Studies on Pharmaceuticals. IV. : Determination of Free Sulfur in Anethole Trithione
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چکیده
منابع مشابه
determination of maximal singularity free zones in the workspace of parallel manipulator
due to the limiting workspace of parallel manipulator and regarding to finding the trajectory planning of singularity free at workspace is difficult, so finding a best solution that can develop a technique to determine the singularity-free zones in the workspace of parallel manipulators is highly important. in this thesis a simple and new technique are presented to determine the maximal singula...
15 صفحه اولPolarographic Analysis of Quetiapine in Pharmaceuticals
The voltammetric behaviour of quetiapine (QTP) was studied using direct current (DCt), differential pulse (DPP) and alternating current (ACt) polarography. The drug manifests cathodic waves over the pH range of 6 – 11.8. The waves were characterized as being irreversible, diffusion-controlled with limited adsorption properties. At pH 8, the diffusion current-concentration relationship was recti...
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A procedure is proposed for the determination of malononitrile by differential pulse polarography in methanolic 0.1M tetraethylammonium iodide/0.001M tetramethylammonium hydroxide as the supporting electrolyte. In this medium malononitrile is chemically converted into an electroactive species. With close control of timing of the steps in the procedure the error of the method is +/-1.5% in the c...
متن کاملThe polarographic determination of selenium in urine.
Polarographicdata are presented for the reduction of selenite ion in 3M sulfuric acid, 1M potassium chloride, and 1M ammonia-ammonium chloride. In these first two media two waves are obtained correspondingto the diffusion-controlled reduction of selenite ion to selenium amalgam and the adsorption of selenite ion on the mercury drop, respectively. One wave is obtained in ammonia-ammonium chlorid...
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The absorbance at 450 mJ.Lof serum diluted with acidified ethylene glycol is used as a measure of the serum’s total bilirubin content in a single-tube, single-extraction method for rapid determination of free and total bilirubin in 0.1 ml. of serum. With the addition of chloroform, free bilirubin is extracted into the chloroform but conjugated bilirubin remains in the ethylene glycol. Free bili...
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ژورنال
عنوان ژورنال: YAKUGAKU ZASSHI
سال: 1970
ISSN: 0031-6903,1347-5231
DOI: 10.1248/yakushi1947.90.4_491