论文部分内容阅读
武汉大学江祖成、陈浩等提出了用FIAICP-AES联用技术测定工艺流程试液中痕量钪的新方法。使用PGS-2型二米平面光栅光谱仪、2kW高频等离子体发生器,三层同轴石英矩管,同轴型气动雾化器。蠕动泵泵速6.5ml/min,进样体积0—2ml(可调)。当采用0.5ml体积进样,以Sc363.075nm为分析线,Sc的检出限为8.4ng/ml,RSD％为2.5％。此法可以直接用于基体浓度在Fe≤30mg/ml和Ti≤10mg/ml范围内痕量钪的测定,而无需分离基体或在标样和试样之间进行基体浓度的匹配。众所周知、ICP-AES测定中常规溶液进样方法存
Wuhan University Jiangzu Cheng, Chen Hao and other proposed by FIAICP-AES technology used in the determination of trace concentrations of scandium in the test method. Using PGS-2 two-meter plane grating spectrometer, 2kW high-frequency plasma generator, three coaxial quartz tube, coaxial aerodynamic atomizer. Peristaltic pump speed 6.5ml / min, injection volume 0-2ml (adjustable). When using 0.5ml volume injection, with Sc363.075nm as the analytical line, the detection limit of Sc was 8.4ng / ml and RSD% was 2.5%. This method can be used directly for the determination of trace scandium in the matrix concentration range of Fe ≤ 30 mg / ml and Ti ≤ 10 mg / ml without the need to separate the matrix or to match the matrix concentration between the standard and the sample. It is well-known that conventional solution sampling methods are used in ICP-AES