一个方法为 Na 的内容决心被开发， Mg ，艾尔， Si ， P ， S ， Cl ， K ， Ca ， Ti ， V ， Cr ， Mn ， Fe ， Ni ， Cu ， Zn ， Ga ， Nb ， Zr ， Y ， Sr ， Rb ， Ba ，在使用的海洋的沉积样品盖住 26 专业，未成年者，和踪...一个方法为 Na 的内容决心被开发， Mg ，艾尔， Si ， P ， S ， Cl ， K ， Ca ， Ti ， V ， Cr ， Mn ， Fe ， Ni ， Cu ， Zn ， Ga ， Nb ， Zr ， Y ， Sr ， Rb ， Ba ，在使用的海洋的沉积样品盖住 26 专业，未成年者，和踪迹元素的 La 和 Ce 等等由X光检查荧光 spectrometry 熔化了玻璃圆盘。刻度用海洋的沉积被成为证明引用材料和样品由在不同比例与流沉积和碳酸盐标准样品混合几海洋的沉积准备了的合成标准。矩阵效果用理论高山被改正哈象内部标准的系数，经验系数和散布放射(为踪迹元素) 。方法的精确性被证明参考材料 GBW07314， GBW07334 和 GSMS6 的分析评估。结果在与 RSD 的对标准的证明价值的好同意不到 2.60% 除了 Y，有 RSD 的 Cr， Ga， Ce， La， Nb， Rb，和 V 不到 9.0%(n=12 ) 。展开更多
A rapid analysis method of determining content of eight compounds of open-hearth furnace slag was developed using X-ray fluorescence spectrometry and pressed powder briquettes. Matrix effect was corrected using theore...A rapid analysis method of determining content of eight compounds of open-hearth furnace slag was developed using X-ray fluorescence spectrometry and pressed powder briquettes. Matrix effect was corrected using theoretical alpha coefficient. Grains-size effect was eliminated by optimized sample preparation technique parameters. Mineral effect was corrected with standard curve of specially made standard samples. The analysis results of TiO2, TFe, SiO2, MgO, Al2O3, CaO, MnO and P2O5 in slag samples showed that both precision and accuracy are comparable with that of chemical method.展开更多
X-ray fluorescence spectrometry was used to detect the content of eight elements in metal coating smeared on waste plastics,and effects of sample cups,elements in plastic substrate,and interaction of elements in metal...X-ray fluorescence spectrometry was used to detect the content of eight elements in metal coating smeared on waste plastics,and effects of sample cups,elements in plastic substrate,and interaction of elements in metal coating on detection results were analyzed. The results show that the RSD of the method used to detect element content in the metal coating smeared on the waste plastics ranged from 0.008% to 0.044%; the determination range of the eight elements was 0.002%-52.0%,and their detection limit ranged from 0.0002% to 0.0008%. The determination results of X-ray fluorescence spectrometry were consistent with that of ICP-AES. The method can provide technical support for the determination of damage and pollution caused by metal coating smeared on waste plastics.展开更多
A quantitative analysis method of molybdenum in FeMo alloys by X-ray spectrometry using borate fusion technique was compared with that with pressed pellet. The complete pre-oxidation of FeMo alloys for the preparation...A quantitative analysis method of molybdenum in FeMo alloys by X-ray spectrometry using borate fusion technique was compared with that with pressed pellet. The complete pre-oxidation of FeMo alloys for the preparation of homogeneous fused discs was achieved by employing an automated fusion machine equipped with specially designed O2-blowing nozzles, which used lithium tetra-borate as flux with the addition of lithium nitrate (LiNO3) as oxidizer. The calibration curves of Mo and Fe were used in the quantitative analysis of standard materials and unknown plant samples with satisfactory accuracy and precision, utilizing the corrections of the matrix effects and line overlap. It was confirmed that the newly proposed method of preparing fused glass discs of FeMo alloys can replace the conventional wet chemical analyses requiring the labor intensive and time consuming procedure.展开更多
基金Supported by China Ministry of Science and Technology (2000DEB20081)China Ocean Mineral Resources R&D Association (COMRA) (No.DY105-05-01-05)+1 种基金China Ministry of Education(No.205089)China National Natural Science Foundation (No.40076015)
文摘一个方法为 Na 的内容决心被开发， Mg ，艾尔， Si ， P ， S ， Cl ， K ， Ca ， Ti ， V ， Cr ， Mn ， Fe ， Ni ， Cu ， Zn ， Ga ， Nb ， Zr ， Y ， Sr ， Rb ， Ba ，在使用的海洋的沉积样品盖住 26 专业，未成年者，和踪迹元素的 La 和 Ce 等等由X光检查荧光 spectrometry 熔化了玻璃圆盘。刻度用海洋的沉积被成为证明引用材料和样品由在不同比例与流沉积和碳酸盐标准样品混合几海洋的沉积准备了的合成标准。矩阵效果用理论高山被改正哈象内部标准的系数，经验系数和散布放射(为踪迹元素) 。方法的精确性被证明参考材料 GBW07314， GBW07334 和 GSMS6 的分析评估。结果在与 RSD 的对标准的证明价值的好同意不到 2.60% 除了 Y，有 RSD 的 Cr， Ga， Ce， La， Nb， Rb，和 V 不到 9.0%(n=12 ) 。
文摘A rapid analysis method of determining content of eight compounds of open-hearth furnace slag was developed using X-ray fluorescence spectrometry and pressed powder briquettes. Matrix effect was corrected using theoretical alpha coefficient. Grains-size effect was eliminated by optimized sample preparation technique parameters. Mineral effect was corrected with standard curve of specially made standard samples. The analysis results of TiO2, TFe, SiO2, MgO, Al2O3, CaO, MnO and P2O5 in slag samples showed that both precision and accuracy are comparable with that of chemical method.
基金Supported by Project of Ningbo Entry-Exit Inspection and Quarantine Bureau(K21-2013)
文摘X-ray fluorescence spectrometry was used to detect the content of eight elements in metal coating smeared on waste plastics,and effects of sample cups,elements in plastic substrate,and interaction of elements in metal coating on detection results were analyzed. The results show that the RSD of the method used to detect element content in the metal coating smeared on the waste plastics ranged from 0.008% to 0.044%; the determination range of the eight elements was 0.002%-52.0%,and their detection limit ranged from 0.0002% to 0.0008%. The determination results of X-ray fluorescence spectrometry were consistent with that of ICP-AES. The method can provide technical support for the determination of damage and pollution caused by metal coating smeared on waste plastics.
文摘A quantitative analysis method of molybdenum in FeMo alloys by X-ray spectrometry using borate fusion technique was compared with that with pressed pellet. The complete pre-oxidation of FeMo alloys for the preparation of homogeneous fused discs was achieved by employing an automated fusion machine equipped with specially designed O2-blowing nozzles, which used lithium tetra-borate as flux with the addition of lithium nitrate (LiNO3) as oxidizer. The calibration curves of Mo and Fe were used in the quantitative analysis of standard materials and unknown plant samples with satisfactory accuracy and precision, utilizing the corrections of the matrix effects and line overlap. It was confirmed that the newly proposed method of preparing fused glass discs of FeMo alloys can replace the conventional wet chemical analyses requiring the labor intensive and time consuming procedure.
