Sampling filters and dissolution methods for differential determination of water-soluble chromium (VI) and chromium (III) in particulate substances.
نویسندگان
چکیده
منابع مشابه
Spectroscopic Determination of Chromium(Vl) during the Reduction of Chromium(VI) to Chromium(III)
Reduction of chromium(VI) to chromium(Ill) by thiourea between pH 3.0 and 5.5 is a key aspect of the chrominm(VI)/thiourea/polyacrylamide gel polymer system used in enhanced oil recovery processes. A method has been developed to determine chromium(Vl) concentration during the reduction of chromium(VI) to chromium(III) in this pH range. The reduction reaction is run in the presence of an acetic ...
متن کاملPreconcentration and Determination of Chromium (III) from Sea Water Samples Using Ion Imprinted Activated Carbon
A simple ion imprinted amino-functionalized sorbent was synthesized by coupling activated carbon with iminodiacetic acid, a functional compound for metal chelating, through cyanoric chloride spacer. The resulting sorbent has been characterized using Fourier transform infrared spectroscopy (FT-IR), elemental analysis, thermogravimetric analysis (TGA) and evaluated for the preconcentration and de...
متن کاملPreconcentration and Determination of Chromium (III) from Sea Water Samples Using Ion Imprinted Activated Carbon
A simple ion imprinted amino-functionalized sorbent was synthesized by coupling activated carbon with iminodiacetic acid, a functional compound for metal chelating, through cyanoric chloride spacer. The resulting sorbent has been characterized using Fourier transform infrared spectroscopy (FT-IR), elemental analysis, thermogravimetric analysis (TGA) and evaluated for the preconcentration and de...
متن کاملPurification of chromium (VI) for use in the PBI determination.
In connection with the determination of serum protein-bound iodine (PBI), it is occasionally advantageous to have available reagents with a very low iodine blank. Of the reagents required in a PBI procedure employing dialysis, wet combustion with 112S04 and Cr (VI), volatilization of iodine after liberation with 113P03, and estimation of iodine by means of the Ce (IV)-As (III) reaction, the Cr ...
متن کاملsimulation and experimental studies for prediction mineral scale formation in oil field during mixing of injection and formation water
abstract: mineral scaling in oil and gas production equipment is one of the most important problem that occurs while water injection and it has been recognized to be a major operational problem. the incompatibility between injected and formation waters may result in inorganic scale precipitation in the equipment and reservoir and then reduction of oil production rate and water injection rate. ...
ذخیره 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: INDUSTRIAL HEALTH
سال: 1986
ISSN: 0019-8366,1880-8026
DOI: 10.2486/indhealth.24.111