Rapid Iodometric Method for Determination of Chromium in Chromite.
نویسندگان
چکیده
منابع مشابه
Rapid Determination of Chromium (M)lli Natural Water and Industrial Effluents Using Kinetic Speetrophotometric Method
A new simple arid rapid catalytic kinetic method for determination of trace amounts of chromium (110 isdescribed. The method is based on the catalytic effect of chromium (III) on the reduction of Methylene blue byascorbic acid in acidic media. The reaction monitored smectrophotomenically by measuring the decrease ofabsorbance at 664 nm at 25 C. The fixed-time method was used for the first 300 s...
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Tropicamide is an antimuscarinic agent used as eye drops for refractive examinations. The aim of this study was to develop a simple and suitable analytical method for determination of tropicamide in eye drops in the presence of excipients. A zero-crossing third and fourth derivative spectrophotometric method was described for determination of tropicamide in eye drops. The measurements wer...
متن کاملapplication and construction of carbon paste modified electrodes developed for determination of metal ions in some real samples
ساخت الکترودهاِی اصلاح شده ِیکِی از چالشهاِی همِیشگِی در دانش شیمِی بوِیژه شیمِی تجزیه مِی باشد ،که با در نظر گرفتن سادگِی ساخت، کاربردی بودن و ارزان بودن روش مِی توان به باارزش بودن چنِین سنسورهاِی پِی برد.آنچه که در ادامه آورده شده به ساخت و کاربرد الکترودهاِی اصلاح شده با استفاده از نانو ذرات در اندازه گِیرِی ولتامترِی آهن وکادمِیم اشاره دارد. کار اول اختصاص دارد به ساخت الکترود خمِیر کربن اصلاح شده با لِیگاند داِ...
15 صفحه اولrapid determination of chromium (m)lli natural water and industrial effluents using kinetic speetrophotometric method
a new simple arid rapid catalytic kinetic method for determination of trace amounts of chromium (110 isdescribed. the method is based on the catalytic effect of chromium (iii) on the reduction of methylene blue byascorbic acid in acidic media. the reaction monitored smectrophotomenically by measuring the decrease ofabsorbance at 664 nm at 25 c. the fixed-time method was used for the first 300 s...
متن کاملTHE IODOMETRIC DETERMINATION OF CYSTlNE IN THE URINE
The iodometric titration of thiol compounds, first introduced by Rosenheim and Davidsohn (1) and modified by Klason and Carlson (2), was applied to the determination of cysteine and related compounds by Okuda, who studied the reaction of cysteine with iodine in acid solution (3). The reaction would be a valuable one if the conditions for the conversion of -SH to -SS(cysteine to cystine) could b...
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ژورنال
عنوان ژورنال: Journal of Industrial & Engineering Chemistry
سال: 1921
ISSN: 0095-9014,1943-2968
DOI: 10.1021/ie50135a020