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Title: Trace level determination of titanium in real samples by alternating current voltammetry

Abstract

The fundamental and second harmonic alternating current voltammetric determination of titanium(IV) in the presence of a large excess of iron(III) is reported. The measurements were carried out with a semistationary mercury electrode (long-lasting sessile-drop mercury electrode) as the working electrode. The analytical procedure was controlled by the analysis of standard reference materials: Portland cement BCS 372, stainless steel (AISI 321) SRM 121 d, and highly alloyed steel (Eurostandard 281-1). The confidence interval of the experimental data was in agreement with the certified values for the titanium(IV) content of the samples. The precision, expressed by the relative standard deviation, and the accuracy, expressed by the relative error, were on the order of 3-5%. The standard addition technique was found to improve the resolution of alternating current voltammetric methods, even in the case of very high c/sub Fe:c/sub Tl/ concentration ratios.

Authors:
; ; ;
Publication Date:
Research Org.:
Univ. of Ferrara (Italy)
OSTI Identifier:
6149221
Resource Type:
Journal Article
Journal Name:
Anal. Chem.; (United States)
Additional Journal Information:
Journal Volume: 60:21
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; TITANIUM; VOLTAMETRY; ELECTRODES; EXPERIMENTAL DATA; IRON; QUANTITATIVE CHEMICAL ANALYSIS; RESOLUTION; TRACE AMOUNTS; CHEMICAL ANALYSIS; DATA; ELEMENTS; INFORMATION; METALS; NUMERICAL DATA; TRANSITION ELEMENTS; 400102* - Chemical & Spectral Procedures; 400400 - Electrochemistry

Citation Formats

Locatelli, C, Fagioli, F, Garai, T, and Bighi, C. Trace level determination of titanium in real samples by alternating current voltammetry. United States: N. p., 1988. Web. doi:10.1021/ac00172a017.
Locatelli, C, Fagioli, F, Garai, T, & Bighi, C. Trace level determination of titanium in real samples by alternating current voltammetry. United States. https://doi.org/10.1021/ac00172a017
Locatelli, C, Fagioli, F, Garai, T, and Bighi, C. 1988. "Trace level determination of titanium in real samples by alternating current voltammetry". United States. https://doi.org/10.1021/ac00172a017.
@article{osti_6149221,
title = {Trace level determination of titanium in real samples by alternating current voltammetry},
author = {Locatelli, C and Fagioli, F and Garai, T and Bighi, C},
abstractNote = {The fundamental and second harmonic alternating current voltammetric determination of titanium(IV) in the presence of a large excess of iron(III) is reported. The measurements were carried out with a semistationary mercury electrode (long-lasting sessile-drop mercury electrode) as the working electrode. The analytical procedure was controlled by the analysis of standard reference materials: Portland cement BCS 372, stainless steel (AISI 321) SRM 121 d, and highly alloyed steel (Eurostandard 281-1). The confidence interval of the experimental data was in agreement with the certified values for the titanium(IV) content of the samples. The precision, expressed by the relative standard deviation, and the accuracy, expressed by the relative error, were on the order of 3-5%. The standard addition technique was found to improve the resolution of alternating current voltammetric methods, even in the case of very high c/sub Fe:c/sub Tl/ concentration ratios.},
doi = {10.1021/ac00172a017},
url = {https://www.osti.gov/biblio/6149221}, journal = {Anal. Chem.; (United States)},
number = ,
volume = 60:21,
place = {United States},
year = {Tue Nov 01 00:00:00 EST 1988},
month = {Tue Nov 01 00:00:00 EST 1988}
}