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提出了几种与ICP摄谱法分析校准曲线形状相似的数学模式,编制了引用线性化系数K′以使分析较准曲线线性化的程序及单侧高斯拟合和三次幂函数拟合程序、并对各种数学模式的拟合结果进行了比较研究。结果表明,在一定浓度范围内,各种拟合方式与人工绘制标准曲线分析结果相吻合。但任一数学模式和拟合方式都有一定的应用范围和局限性。不同波长范围采用不同的拟合方式,可使拟合效果更佳。
Several mathematical models similar to those of the calibration curve of ICP spectroscopy were proposed. A program of linearization coefficient K ’to make the analysis of the calibration curve linearized and a fitting program of one-sided Gaussian fitting and cubic power function were developed. The mathematical results of various mathematical models were compared. The results show that, in a certain range of concentration, various fitting methods are consistent with those of artificial standard curve analysis. However, any mathematical model and fitting methods have certain applications and limitations. Different wavelength range using different fitting methods, the fitting effect can be better.