[Determination of 12 elements in coal ash by x-ray fluorescence spectrometry].
[Determination of 12 elements in coal ash by x-ray fluorescence spectrometry].
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发表时间：
2008-06
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通讯作者：
Yih H. Song;Fen Guo;S. Gu
中科院分区：
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作者：
Yih H. Song;Fen Guo;S. Gu
建立了熔融制样X射线荧光光谱法测定煤灰中SiO2、Al2O3、Fe2O3、CaO、SO3、TiO2、K2O、Na2O、P2O5、MgO、MnO和BaO的方法。该方法采用12：22混合熔剂和氧化物降低熔体温度，解决了硫测定准确度的问题。采用土壤标样和粉煤灰标样混合的方法，解决了X射线荧光粉煤灰分析标准样品不足的问题。该方法的准确度和精密度均可接受，测定结果与湿化学法相当。
A method for the determination of SiO2, Al2O3, Fe2O3, CaO, SO3, TiO2, K2O, Na2O, P2O5, MgO, MnO and BaO in coal ash by X-ray fluorescence spectrometry with melt sample preparation was developed. This method solved the problems of determination accuracy of S by using the 12:22 mix flux and oxide to lower the melt temperature. Using the soil standard sample and mixing the soil standard sample and coal ash standard sample solved the problem that there are not enough standard samples for coal ash analysis by XRF. The accuracy and precision of this method are acceptable, and the results are comparable to the those obtained by wet chemical method.