等离子体发射光谱测定燃油中钠、钒和铝的研究

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摘要：利用等离子体发射光谱，通过试验优化，确定了影响钠、钒和铝元素的背景等效浓度各因素的最佳工作参数：入射功率、载气流量和辅助气流量，其中钠的入射功率(P)950 W、载气流量(N)0.6 L·min^-1、辅助气流量(A)1.0 L·min^-1;钒的入射功率1 150 W、载气流量0.5 L·min^-1、辅助气流量1.1 L·min^-1;铝的入射功率1 150 W、载气流量0.6 L·min^-1、辅助气流量1.0 L·min^-1。结果表明，该方法具有重现性好、灵敏度高、线性范围宽和精密度高等优点。本方法的精密度在1.7％～2.2％之间，线性范围0～100 mg·L^-1，加标回收试验的回收率在96％～105％之间。

关键词：燃油;等离子体发射光谱;钠;钒;铝;精密度;加标回收率

Abstract：The present paper considers synthetically all kinds of factors affecting excitation spectrum under traditional measurement conditions of fluorescence matter in liquor using plasma atomic emission spectra. The input power, carrier gas flow and assistant gas flow for BEC of Na, V, Al were optimized by testing. The input power, carrier gas flow and assistant gas flow for Na are 950 W, 0.6 L·min^-1 and 1.0 L·min^-1, respectively. The input power, carrier gas flow and assistant gas flow for V are 1 150 W, 0.5 and 1.1 L·min^-1, respectively. The input power, carrier gas flow and assistant gas flow for Al are 1 150 W, 0.6 and 1.0 L·min^-1, respectively. The result shows that the method is sensitive, accurate, linear in a wide range and highly precise. The precision is between 1.7％-2.2％, the linear ranges are between 0-100 mg·L^-1 and recoveries are between 96％-105％.

Key words：Fuel oil;Plasma atomic emission spectroscopic analysis;Natrium;vanadium and aluminum;Precision;Recovery

收稿日期: 2005-01-28 修订日期: 2005-04-28

中图分类号:

O657.3

通讯作者: 魏海军

引用本文:

魏海军¹，关德林¹，孙培廷¹，王宏志¹，王泽恩²，骆泽平²，李韶辉² . 等离子体发射光谱测定燃油中钠、钒和铝的研究[J]. 光谱学与光谱分析, 2006, 26(02): 340-343.
WEI Hai-jun¹,GUAN De-lin¹,SUN Pei-ting¹,WANG Hong-zhi¹,WANG Ze-en²,LUO Ze-ping²,LI Shao-hui² . Study on Determination of Natrium, Vanadium and Aluminum Contents in Fuel Oil by ICP-AES. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2006, 26(02): 340-343.

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https://www.gpxygpfx.com/CN/Y2006/V26/I02/340