| 横向和纵向加热涂钨平台石墨炉原子吸收光谱法测定镓的比较 |
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| 引用本文： | 吴静娜,龚琦.横向和纵向加热涂钨平台石墨炉原子吸收光谱法测定镓的比较[J].理化检验(化学分册),2011(8). |
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| 作者姓名： | 吴静娜 龚琦 |
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| 作者单位： | 广西大学化学化工学院; |
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| 摘 要： | 分别优化了横向加热和纵向加热涂钨平台石墨炉原子吸收光谱法测定镓的条件。结果显示,纵向加热方式的原子化温度比横向加热低,在灰化温度、进样量、酸介质的影响和化学改进剂等方面,两者没有显著差别。纵向加热的灵敏度高于横向加热,线性范围也比横向加热宽;但是采用横向加热方式能获得更低的检出限和更强的抗干扰能力。
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| 关 键 词： | 石墨炉原子吸收光谱法 平台石墨管 钨涂层平台 横向加热 纵向加热 |
Comparative Study on the Mode of Transverse and Longitudinal Heating of Tungsten-coated Platform in GF-AAS Determination of Gallium |
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| WU Jing-na,GONG Qi.Comparative Study on the Mode of Transverse and Longitudinal Heating of Tungsten-coated Platform in GF-AAS Determination of Gallium[J].Physical Testing and Chemical Analysis Part B:Chemical Analgsis,2011(8). |
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| Authors: | WU Jing-na GONG Qi |
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| Institution: | WU Jing-na,GONG Qi~* (College of Chem.and Chem.Eng.,Guangxi University,Nan'ning 530004,China) |
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| Abstract: | A comparative study on the mode of heating of the W-coated platform(heating transversely or longitudinally) in the GF-AAS determination of gallium was made.It was shown that a lower temperature of atomization,higher sensitivity and a wider range of linearity were found in the mode of longitudinal heating,but lower detection limit and better anti-interference ability were obtained in the mode of transverse heating.No significant differences were found in respect to the ashing temperature,amount of sample int... |
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| Keywords: | GF-AAS Platform of graphite tube Tungsten coated platform Transverse heating Longitudinal heating |
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