Polarographic and Spectrophotometric Determination of Zinc in Zinc Stearate
نویسندگان
چکیده
منابع مشابه
Simultaneous spectrophotometric determination of cadmium, copper and zinc.
A method for the simultaneous spectrophotometric determination of cadmium, copper and zinc based on the formation of their complexes with 1,5-bis(di-2-pyridylmethylene)thiocarbonohydrazide is proposed. The absorption curves of these complexes overlap severely in the scanning range 380-480 nm. The analyte concentrations are calculated by a least squares fit of the pure spectra to the mixture spe...
متن کاملSome enquiries into the toxicology of zinc stearate.
At the International Congress of Industrial Medicine in Naples (Noro and Uotila, 1954), it was stated that " the inhalation of zinc stearate dust is known as a cause of pneumonia in children, but its effects in the working environment are not so well known. The authors describe the fatal case of a worker employed for 29 years in a rubber plant. Clinical examination and necropsy showed diffuse f...
متن کاملA pulse polarographic method for the analysis of zinc dithiocarbamates
An extremely sensitive pulse polarographic method for the determination of zinc dimethyldithiocarbamate (an agricultural fungicide) and zinc di-n-pentyldithiocarbamate (a petroleum additive), has been developed based on the reaction of their dithiocarbamate moiety with copper(II) perchlorate in acetonitrile medium. Well defined diffusion-controlled peaks are observed at –140 mV and –130 mV (vs ...
متن کاملA spectrophotometric method for the determination of zinc, copper, and cobalt ions in metalloproteins using Zincon.
Zincon (2-carboxy-2'-hydroxy-5'-sulfoformazylbenzene) has long been known as an excellent colorimetric reagent for the detection of zinc and copper ions in aqueous solution. To extend the chelator's versatility to the quantification of metal ions in metalloproteins, the spectral properties of Zincon and its complexes with Zn(2+), Cu(2+), and Co(2+) were investigated in the presence of guanidine...
متن کاملChromatomembrane Method as Sample Preparation for Spectrophotometric Determination of zinc and copper in Pharmaceuticals
Since its existent, the principle of the chromatomembrane mass transfer has been used in flow injection analysis mainly for determining of inorganic and organic substances in environmental samples and coupled with several detection systems such as photometry, voltammetry, inductively coupled plasma-atomic emission spectroscopy, gas chromatography, ion chromatography, and high performance liquid...
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: Bulletin of the Chemical Society of Japan
سال: 1963
ISSN: 0009-2673,1348-0634
DOI: 10.1246/bcsj.36.746