摘要
本方法应用ICP-MS校正方程模式，准确地测定了痕量钒元素。因为实验过程带进大量Cl、O干扰，对准确测定痕量钒元素产生较大偏差，所以，需要对钒元素进行校正。在测定大气颗粒物PM2.5中钒元素数据的基础上，通过对比不同仪器的校正方程模式及氦气碰撞模式，研究建立了普通模式下应用校正方程，有效地克服了测定钒元素的干扰问题。方法加标回收率在85．9—116％之间，RED≤3．77％，此方法已用于实际样品的测定。
The method using ICP-MS correction equation detected vanadium factor in atmospheric particulates effectively.The interference coming from chlorine and oxygen causes huge deviation in vanadium determination.So correction equation is needed.Meanwhile,based on the results of determination of vanadium in atmospheric particulates and comparing the results between correction equation mode and Helium collision mode.A correction equation based on normal mode was developed for Vanadium determination,it can eliminate the interferences effectively.Its recovery is between 85.9-116%, RSD≤3.77%.
出处
《现代科学仪器》
2014年第3期162-165,共4页
Modern Scientific Instruments
