X射线荧光光谱法直接测定燃料油中铝、硅、硫、钒  

XRFS Determination of Aluminum,Silicon,Sulfur and Vanadium in Fuel Oil

作　　者：邬蓓蕾[1] 王松青[1] 王谦[1] 林振兴[1] 

机构地区：[1]宁波出入境检验检疫局,宁波315012

出　　处：《理化检验（化学分册）》2008年第10期913-916,共4页Physical Testing and Chemical Analysis(Part B:Chemical Analysis)

摘　　要：提出了应用波长色散X射线荧光光谱法直接测定燃料油中铝、硅、硫及钒含量的方法，用理论α影响系数及内标法校正基体效应，试样预先在60℃及59kHz超声水浴中搅拌45min，达到有效地使样品均匀化。测得铝、硅、钒及硫4元素的检出限依次为1．0，0．9，0．7，0．6mg·kg^-1，对两个已知样品中4元素分别按所提出的方法测定7次，从而计算得方法的相对标准偏差在0．5％～12．6%范围内。对4个燃料油样品分别用此方法及标准方法作了分析，所测得4元素的含量互相吻合。A method of direct determination of aluminum, silicon, sulfur and vanadium in fuel oil by wavelength dispersion-XRFS was proposed. Matrix effect was corrected by applying the theoratical α coefficient and the internal standard methods. The sample was effectively homogenized by agitation in an ultrasonic water bath at 60 ℃ and 59 Hz for 45 min. Values of detection limit found for Al, Si, V and S were 1.0, 0. 9, 0. 7 and 0. 6 mg · kg^-1 respectively. Tests for precision were made by analyzing 2 known samples with 7 determinations, giving values of RSD＇s in the range of 0. 5% to 12. 6%. The results obtained by analyzing 4 different fuel oil samples were found to be in consistency with the results obtained by the standard methods.

关 键 词：X射线荧光光谱法 铝 硅 硫 钒 燃料油 

分 类 号：O657.31[理学—分析化学]