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| Determination of Trace Boron Element in Silicon Steel Sheets by Glow Discharge Optical Emission Spectrometry (GD-OES) |
| Received:May 19, 2011 Revised:June 28, 2011 |
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| DOI：10.3969/j.issn.2095-1035.2011.03.0008 |
| KeyWord:direct curren glow discharge spectrometry；boron；silicon steel sheets |
| Author | Institution |
| DENG Junhua |
鞍钢股份有限公司技术中心，辽宁 鞍山 |
| CAO Xinquan |
鞍钢股份有限公司质检中心， 辽宁 鞍山 |
| LI Hua |
鞍钢股份有限公司质检中心， 辽宁 鞍山 |
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| Abstract: |
| A glow discharge optical emission spectrometry (GD-OES)
method for determining trace boron element in silicon steel sheets were established through optimization of instrumental parameters and using Fe element as an internal standard to eliminate the matrix effect. The optimized instrumental parameters included discharge voltage, discharge current, pre-sputtering time and integration time, which are 1200 V, 50 mA, 40 s, and 10 s, respectively. The content of boron element that can be determined from the calibration curve ranges from 0.0001% to 0.022% and the linear correlation coefficient is more than 0.999. The testing results are consistent with the certified values and the relative standard deviations are below 10%. |
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