CAJ | 학술논문

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IC P-M S法进行测定。通过向八极杆碰撞/反应池（O RS ）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0.91和0.27μg · L -1。
연구료전감우합등리자체질보（ ICP-MS）법측정맹자철양체중규화린원소적분석방법。양품용초산＋염산경미파용해，용초순수희석후직접진입IC P-M S법진행측정。통과향팔겁간팽당/반응지（O RS ）중인입양기，소제고염기체대래적다원자리자질보간우，채용Y위내표원소교정기체효응소산생적영향，우화료의기적최가공작삼수。채용NIST SRM 362화NIST SRM 364험증료방법적준학성，측정결과여표준물질소제공적삼고치일치。규화린원소적검출한분별위0.91화0.27μg · L -1。
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 ma-trix effects and the instrument drift could be commendably calibrated with Y as internal standard element .The working parame-ters 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 lim-its for Si and P is 0.91 and 0.27 μg · L -1 .