Determination of Trivalent Chromium Ions in Chromium Plating Solutions by Ultraviolet-Visible Spectrophotometry

1989 ◽  
Author(s):  
Samuel Sopok
Keyword(s):  
Trivalent Chromium ◽  
Visible Spectrophotometry ◽  
Chromium Ions ◽  
Chromium Plating

Determination of trivalent chromium in chromium plating electrolytes

1995 ◽  
Vol 93 (5) ◽  
pp. 12-18 ◽  
Author(s):  
S. Nikolova ◽  
T. Dobrev ◽  
M. Monev
Keyword(s):  
Trivalent Chromium ◽  
Chromium Plating

Determination of Ornithine and Lysine by Visible Spectrophotometry

1993 ◽  
Vol 26 (1) ◽  
pp. 73-86 ◽  
Author(s):  
Á. Kathó ◽  
M. T. Beck
Keyword(s):  
Visible Spectrophotometry

Trivalent chromium plating

1980 ◽  
Vol 6 (3) ◽  
pp. 222-222 ◽  
Author(s):  
D. Burrows ◽  
M. A. Cooke
Keyword(s):  
Trivalent Chromium ◽  
Chromium Plating

Trivalent chromium electrodeposition using a deep eutectic solvent

2018 ◽  
Vol 65 (5) ◽  
pp. 499-505 ◽  
Author(s):  
Vyacheslav Protsenko ◽  
Lina Bobrova ◽  
Felix Danilov
Keyword(s):  
Choline Chloride ◽  
Deep Eutectic Solvent ◽  
Diffraction Method ◽  
Trivalent Chromium ◽  
Electrolytic Deposition ◽  
Active Dissolution ◽  
Plating Bath ◽  
Content Type ◽  
Chromium Plating ◽  
New Generation

Purpose This paper aims to investigate the electrolytic deposition of corrosion-resistant chromium coatings from a trivalent chromium plating bath based on deep eutectic solvent, a new generation of room temperature ionic liquids. Design/methodology/approach The electrolyte contained chromium (III) chloride, choline chloride and the additive of extra water. The surface morphology was estimated by means of SEM technique. The microstructure of as-deposited and annealed coatings was studied using X-ray diffraction method. The kinetics of the chromium electrodeposition and the corrosion electrochemical behavior of the coatings were investigated by cyclic voltammetry technique. Findings Chromium coatings with an amorphous type of microstructure are electroplated from this bath. Some carbon and oxygen are included in deposits obtained. The step-wise mechanism of the electrochemical reduction of Cr(III) ions to Cr(0) is detected. The current efficiency in this system sufficiently exceeds that typical of usual aqueous electrolytes. The coatings fabricated using plating bath based on deep eutectic solvent showed enhanced corrosion resistance in an acidic medium: there is no current peak of active dissolution in polarization curve and the corrosion potential shifts to more positive values as compared with “usual” chromium. Originality/value The electrodeposition of chromium coatings from an environmentally acceptable trivalent chromium electrolyte, a deep eutectic solvent containing chloride choline and extra water additive has been investigated for the first time.

Design of a novel optical sensor for determination of trace amounts of copper by UV–visible spectrophotometry in real samples

2017 ◽  
Vol 32 (3) ◽  
pp. e4110
Author(s):  
Eslam Pourbasheer ◽  
Somayeh Morsali ◽  
Zhila Azari ◽  
Mohammad Ali Karimi ◽  
Mohammad Reza Ganjali
Keyword(s):  
Optical Sensor ◽  
Real Samples ◽  
Visible Spectrophotometry ◽  
Uv Visible

Validation of an analytical method for the quantitative determination of selenium in bacterial biomass by ultraviolet–visible spectrophotometry

2018 ◽  
Vol 255 ◽  
pp. 182-186 ◽  
Author(s):  
Ana Paula Mörschbächer ◽  
Anja Dullius ◽  
Carlos Henrique Dullius ◽  
Cassiano Ricardo Bandt ◽  
Daniel Kuhn ◽  
...  
Keyword(s):  
Quantitative Determination ◽  
Analytical Method ◽  
Bacterial Biomass ◽  
Visible Spectrophotometry
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