Abstract：The heavy metal elements in soil, which were determined by energy dispersive X-ray fluorescence spectrometry (EDXRF), usually meant eight heavy metals mentioned in national standard. At present, the pollution of soil by metal element manganese has attracted much attention. Chromium and manganese in soil was rapidly determined by EDXRF. In order to enhance the measurement accuracy of chromium and manganese, they were corrected using the elements which had absorption enhancement effect and spectral interference. The calibration curve was prepared using the standard sample of soil. The linear correlation coefficient for chromium and manganese was 0.853 and 0.717 before correction, respectively, while it increased to 0.998 and 0.991 after correction. The linearity was significantly improved. The precision test was conducted using one soil sample. The relative standard deviation (RSD, n=11) was 7.2% and 0.66%, respectively. The content of chromium and manganese in soil sample was determined by EDXRF, and the results were consistent with those obtained by wavelength dispersive X-ray fluorescence spectrometry.
倪子月, 陈吉文, 刘明博, 廖学亮, 胡少成. 能量色散X射线荧光光谱法测定土壤中铬和锰的干扰校正[J]. 冶金分析, 2016, 36(10): 10-14.
NI Zi-yue, CHEN Ji-wen, LIU Ming-bo, LIAO Xue-liang, HU Shao-cheng. Interference correction of energy dispersive X-ray fluorescence spectrometric determination of chromium and manganese in soil. , 2016, 36(10): 10-14.
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