Abstract

A new spectrographic method for the determination of boron in carbon and alloy steels has been developed by which accurate, precise, and rapid determinations of boron in the range 5–90 ppm are obtained. In this new procedure, a condensed overdamped discharge is used to excite the spectrum, the sample's electrical polarity is negative, and the graphite counter electrode has a pointed tip with an included angle of 15°. The repeatability of the method expressed as the coefficient of variation is ±5.8%; and at a 95% confidence interval, the spectrographic results agree with chemical determinations within ±22% of the amount present in the sample.

The Use of Briquetted Samples in the Spectrochemical Analysis of Carbon and Alloy Steels and Other Metals

J. F. Woodruff
J. Opt. Soc. Am. 40(4) 192-196 (1950)

Determinations of trace boron in superalloys and steels using laser-induced breakdown spectroscopy assisted with laser-induced fluorescence

Changmao Li, Zhongqi Hao, Zhimin Zou, Ran Zhou, Jiaming Li, Lianbo Guo, Xiangyou Li, Yongfeng Lu, and Xiaoyan Zeng
Opt. Express 24(8) 7850-7857 (2016)

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Timur A. Labutin, Sergey M. Zaytsev, Andrey M. Popov, and Nikita B. Zorov
Opt. Express 22(19) 22382-22387 (2014)

The Spectrochemical Analysis of Nickel Alloys*

Edwin K. Jaycox
J. Opt. Soc. Am. 37(3) 159-162 (1947)