光谱学与光谱分析, 2014, 34 (3): 808, 网络出版: 2014-03-14
ICP-MS法测定MnZn铁氧体中Si和P
Determination of Si and P in MnZn Ferrites by Inductively Coupled Plasma Mass Spectrometry
电感耦合等离子体质谱法 锰锌铁氧体 八极杆碰撞/反应池 硅 磷 Inductively coupled plasma mass spectrometry MnZn ferrites Octopole reaction system Silicon Phosphorus
摘要
研究了电感耦合等离子体质谱( ICP-MS)法测定锰锌铁氧体中硅和磷元素的分析方法。 样品用硝酸+盐酸经微波溶解, 用超纯水稀释后直接进入ICP-MS法进行测定。 通过向八极杆碰撞/反应池(ORS)中引入氦气, 消除高盐基体带来的多原子离子质谱干扰, 采用Y为内标元素校正基体效应所产生的影响, 优化了仪器的最佳工作参数。 采用NIST SRM 362和NIST SRM 364验证了方法的准确性, 测定结果与标准物质所提供的参考值一致。 硅和磷元素的检出限分别为091和027 μg·L-1。
Abstract
An inductively coupled plasma mass spectrometry (ICP-MS) was developed for the determination of Si and P in MnZn ferrites. The sample was digested by HNO3+HCl with microwave digestion followed by dilution with ultrapure water then the above two elements in the solution were analyzed directly by ICP-MS. The analytical elements were by introducing the helium gas into the octopole reaction system (ORS) to eliminate the polyatomic interferences caused by the high salty matrixes. The matrix effects and the instrument drift could be commendably calibrated with Y as internal standard element. The working parameters of the instrument were optimized. The NIST SRM 362 and NIST SRM 364 were used as standard reference materials. The results showed a good agreement between the certified values and the experimental results for three analytes. The detection limits for Si and P is 091 and 027 μg·L-1.
张萍, 符靓, 聂西度. ICP-MS法测定MnZn铁氧体中Si和P[J]. 光谱学与光谱分析, 2014, 34(3): 808. ZHANG Ping, FU Liang, NIE Xi-du. Determination of Si and P in MnZn Ferrites by Inductively Coupled Plasma Mass Spectrometry[J]. Spectroscopy and Spectral Analysis, 2014, 34(3): 808.