电感耦合等离子体原子发射光谱法测定柴油发动机NOx-还原剂AUS32中11种痕量元素
ICP-AES Determination of 11 Trace Elements in Diesel Engines-NOx Reduction Agent AUS 32
摘 要
提出了电感耦合等离子体原子发射光谱法测定柴油发动机NOx-还原剂AUS 32中11种痕量元素钾、钠、铝、钙、铬、铜、铁、镁、镍、锌及磷含量的分析方法。选择了各元素的分析谱线,各元素的质量浓度均在一定的范围内与其信号强度呈线性关系,方法的检出限(3σ)均小于0.010 mg·L-1。方法用于分析NOx-还原剂AUS 32样品,测定结果与ISO标准方法测定值一致;方法的回收率在95.1%~115.1%之间,测定值的相对标准偏差(n=7)均小于6%。
NOx-还原剂AUS 32
痕量元素
ICP-AES
NOx reduction agent AUS 32
Trace elements
Abstract
A new method for the determination of trace amounts of 11 elements including K, Na, Al, Ca, Cr, Cu, Fe, Mg, Ni, Zn and P, diesel engines-NOx reduction agent AUS 32 was proposed. Analytical spectral lines for the 11 elements in the determination were selected. Linear relationships between values of signal intensity and mass concentration of the 11 elements were obtained in definite ranges. Values of detection limits less than 0.010 mg·L-1. The proposed method was used in the analysis of samples of NOx reduction agent AUS 32. The results obtained were in consistency with those obtained by ISO method, and with values of recovery in the range of 95.1%-115.1% and RSD′s (n=7) less than 6%.
中图分类号 O657.31
所属栏目 工作简报
基金项目
收稿日期 2011/3/11
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联系人作者罗鲲翔(LKX5166@163.com)
备注罗鲲翔(1972-),男,陕西宝鸡人,工程师,主要从事汽车零部件产品材料检测。
引用该论文: LUO Kun-xiang,LIU Feng,ZHANG Yu,PANG Mei-ling. ICP-AES Determination of 11 Trace Elements in Diesel Engines-NOx Reduction Agent AUS 32[J]. Physical Testing and Chemical Analysis part B:Chemical Analysis, 2012, 48(4): 462～464
罗鲲翔,刘峰,张煜,庞美玲. 电感耦合等离子体原子发射光谱法测定柴油发动机NOx-还原剂AUS32中11种痕量元素[J]. 理化检验－化学分册, 2012, 48(4): 462～464
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参考文献
【1】KROCHER O, ELSENER M. Chemical deactivation of V2O5/WO3-TiO2 SCR catalysts by additives and impurities from fuels, lubrication oils and urea solution part I. Catalytic studies［J］. Applied Catalysis B: Environmental, 2008(75):215-227．
【2】NICOSIA D, CZEKAJ I, KROCHER O. Chemical deactivation of V2O5/WO3-TiO2 SCR catalysts by additives and impurities from fuels, lubrication oils and urea solution Part II. Characterization study of the effect of alkali and alkaline earth metals［J］. Applied Catalysis B: Environmental, 2008(77):228-236．
【3】ISO 22241-1:2006Diesel engines-NOx reduction agent AUS 32-Part 2: Test methods［S］．
【4】DIN 70070:2005Diesel engines-NOx reduction agent AUS 32-Quality requirements［S］．
【5】JISK 2247-1:2005Diesel engines-NOx reduction additive AUS 32-Part 1: Properties［S］．
【6】DB 11/552-2008车用尿素溶液［S］．
【7】SZJG 33-2010车用尿素溶液(AUS 32)［S］．
【8】GB/T 9727-2007化学试剂 磷酸盐测定通用方法［S］．
【2】NICOSIA D, CZEKAJ I, KROCHER O. Chemical deactivation of V2O5/WO3-TiO2 SCR catalysts by additives and impurities from fuels, lubrication oils and urea solution Part II. Characterization study of the effect of alkali and alkaline earth metals［J］. Applied Catalysis B: Environmental, 2008(77):228-236．
【3】ISO 22241-1:2006Diesel engines-NOx reduction agent AUS 32-Part 2: Test methods［S］．
【4】DIN 70070:2005Diesel engines-NOx reduction agent AUS 32-Quality requirements［S］．
【5】JISK 2247-1:2005Diesel engines-NOx reduction additive AUS 32-Part 1: Properties［S］．
【6】DB 11/552-2008车用尿素溶液［S］．
【7】SZJG 33-2010车用尿素溶液(AUS 32)［S］．
【8】GB/T 9727-2007化学试剂 磷酸盐测定通用方法［S］．
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