所谓X射线荧光光谱滤纸片法,即试样溶解后分取少量溶液于固定面积的定量滤纸上制成薄样直接测定的方法。该方法能有效地消除基体效应,並且用人工合成标准样品,克服了化学法标定的困难,同时采用内标技术,既控制了制样误差又可消除仪器波动对测量的影 The so-called X-ray fluorescence spectroscopy filter paper method, that is, after the sample was dissolved in a small amount of solution on a fixed area quantitative filter made of thin film direct determination of the method. The method can effectively eliminate the matrix effect and overcome the difficulties of chemical calibration by using synthetic samples, meanwhile, adopting the internal standard technique can control the sample preparation error and eliminate the influence of instrument fluctuation on the measurement