| 直流辉光放电发射光谱法测定电工钢中多元素含量 |
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| 引用本文： | 邓军华,曹新全,李化.直流辉光放电发射光谱法测定电工钢中多元素含量[J].化学分析计量,2010,19(6):39-41. |
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| 作者姓名： | 邓军华 曹新全 李化 |
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| 作者单位： | [1]鞍钢集团股份有限公司技术中心,鞍山114009 [2]鞍钢集团股份有限公司质检中心,鞍山114009 |
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| 摘 要： | 采用直流辉光发电发射光谱法对电工钢中15种元素的含量进行测定。以铁为内标元素,确定实验条件为:激发电压1200 V,激发电流50 mA,预溅射时间45 s,积分时间10 s。15种元素测定结果的相对标准偏差小于2.0%(n=11),方法的检出限小于3μg/g,各元素的测定结果与标准物质的认定值吻合。
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| 关 键 词： | 直流辉光放电发射光谱法 电工钢 多元素测定 |
DETERMINATION OF MULTI - ELEMENTS IN ELECTRICAL STEEL BY DIRECT CURRENT GLOW DISCHARGE OPTICAL EMISSION SPECTROMETRY |
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| Deng Junhua,Cao Xingquan,Li Hua.DETERMINATION OF MULTI - ELEMENTS IN ELECTRICAL STEEL BY DIRECT CURRENT GLOW DISCHARGE OPTICAL EMISSION SPECTROMETRY[J].Chemical Analysis And Meterage,2010,19(6):39-41. |
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| Authors: | Deng Junhua Cao Xingquan Li Hua |
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| Institution: | (Teehology Center of Ansteel Co. Ltd. , Anshan 114009, China) (Qualification Test Centre of Ansteel Co. Ltd. , Anshan 114009, China) |
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| Abstract: | The content of 15 kind of elements in electrical steel was determined by DC glow discharge optical emission spec- trometry, Iron was used as internal standard element, optimum conditions were found as follow： discharge of voltage 1200 V, discharge of cun＇ent 50 mA, preburn time of 45 s and integrating time of 10 s. The relative standard deviations（RSD） of 15 elements determina- tion results were below 2.0% （ n = 11 ）. The detection limit of this method was less than 3 μg/g. The determination values of all ele- ments were in good agreement with the certified values. |
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| Keywords: | direct currentt glow discharge optical emission spectrometry electrical steel determination of nmhi - elements |
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