Determination of Trace Boron in Iron and Steel by Adsorptive Stripping Voltammetry with Beryllon III

Content Provider	Semantic Scholar
Author	Tanaka, Tatsuhiko Nishu, Kumi Nabekawa, Hidenori Hayashi, Hideo
Copyright Year	2005
Abstract	Synopsis : Adsorptive stripping voltammetry is proposed for the determination of boron at the low ƒÊg g-1 level in iron and steel. Beryllon III was used as a complexing agent for boron(III). Optimum conditions for a complex formation of boron(III)-Beryllon III complex were as follows: 0.06 M nitrate-0.04 M sulfate supporting electrolyte at pH 4.5; 1.0 X 10-5 M BeryllonIII; 24 h complexation time. The complex was accumulated on a hanging mercury drop electrode at 0.35 V for 60 s under stirring, and subsequently was cathodically stripped to 0.8 Vat a scan rate of 10 mV s-1 by using a differential pulse mode. The interference of iron(III) was eliminated by complexing it with metaphosphoricacid. The cathodic stripping resulted in only a single well-defined peak around 0.5 V. The influence of foreign elements on the determination was evaluated. The calibration graph (peak height vs. boron(III) concentration) in the presence of 1 mg mL-1 iron(III) was linear over the concentration range of 1-25 ng mL-1 (correlation coefficient >0.999), with a relative standard deviation (n=4) of 2.6% at 10 ng mL-1. The minimum limit of determination was 1 ƒÊg g-1 of boron in iron and steel. The proposed method could be applied to the determination of trace boron in iron and steel with good precision and accuracy.
Starting Page	589
Ending Page	594
Page Count	6
File Format	PDF HTM / HTML
DOI	10.2355/tetsutohagane1955.91.7_589
Volume Number	91
Alternate Webpage(s)	https://www.jstage.jst.go.jp/article/tetsutohagane1955/91/7/91_7_589/_pdf/-char/en
Alternate Webpage(s)	https://doi.org/10.2355/tetsutohagane1955.91.7_589
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article