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Study of Spectral Character of Alkali Metals Using microwave plasma torch Simultaneous Spectrometer

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Chemical Research in Chinese Universities 2006年第6期22卷 703-707页

作者： FENG Guo-dong WAN Yi HUAN Yan-fu JIANG jie LI Ming CAO Yan-bo YU Ai-min JIN Qin-han Institute of Miniature Analytical Instrumentation College of Chemistry Jilin University Jilin Province Research Center for Engineering and Technology of Spectral Instruments Changchun 130023 P. R. China

A microwave plasma torch （MPT） simultaneous spectrometer was used to study the spectral character and the matrix effect on alkali metal ions in solution. The main parameters were optimized. The microwave forward power was 100 W. The argon flow rate that was used to sustain the Ar-MPT included the flow rate of carrier gas and the flow rate of support gas, which were 0. 8 and 1.0 L/min, respectively. The HC1 concentration in the solution was 0.02 mol/L. The observation height was 9. 0 ram. The detection limits of Li, Na, K, Rb, and Cs were 0. 0003, 0. 0004, 0. 009, 0.07 and 2.4 mg/L, respectively, and the resuhs obtained by the Ar-MPT were compared with those obtained by argon inductively coupled plasma（Ar-ICP） and argon microwave induced plasma（Ar-MIP）. The interference effects of several matrix elements were also studied.

关键词： Alkali metals microwave plasma torch Simultaneous spectrometer Matrix effects

Evaluation of Improved Ultrasonic Nebulizer for Miniature Simultaneous microwave plasma torch Spectrometer

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Chemical Research in Chinese Universities 2006年第3期22卷 297-301页

作者： FENG Guo-dong JIANG Jie HUAN Yan-fu ZHENG Jian LI Ming CAO Yan-bo JIN Qin-han YU Ai-min Department of Analytical Chemistry College of Chemistry Jilin University Changchun 130021 P. R. China

A new automatic sample solution introduction system for miniature simultaneous microwave plasma torch（MPT） atomic emission spectrometer was developed. The operating parameters were optimized. The detection limits of the spectrometer with an ultrasonic nebulizer for Ag, Al, Ba, Ca, Cr, Cu, Fe, Mg, Mn, Sr, and V are 5-10 times lower than those obtained with a pneumatic nebulizer and are also lower than those obtained by a Model JX-lOlO MPT spectrometer. Two practical samples were analyzed to test the reliability and sensitivity of the system.

关键词： microwave plasma torch Miniature simultaneous spectrometer Ultrasonic nebulizer Automatic introduction system

Photographic Analysis and Optical Diagnosis of Kilowatt microwave plasma torch with Air Carrier Gas

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Chemical Research in Chinese Universities 2023年第6期39卷 1051-1057页

作者： YU Dengjie YU Bingwen ZHANG Xuchen HUANG Shiluo YING Yangwei YAN Yuwei JIN Yining JIN Wei Research Center for Analytical Instrumentation Institute of Cyber-Systems and ControlCollege of Control Science and EngineeringZhejiang UniversityHangzhou 310058P.R.China Research Center for Analytical Instruments and Intelligent Systems Huzhou Institute of Zhejiang UniversityHuzhou 313002P.R.China Faculty of Engineering University of Alberta116 St.and 85 Ave.EdmontonAlbertaCanada

The spatiotemporal motion characteristics of the kilowatt argon microwave plasma torch with the air carrier gas(kW-AC-ArMPT)and the behavior of the plasma filaments are investigated with a digital single-lens reflex(SLR)camera and a high-speed *** with the introduction of the air,both the volume of the central channel and the rotational frequency of the plasma filament are ***,the excitation temperature(Texc),rotational temperature(Trot),and density of electron number(ne)of the kW-AC-ArMPT are measured with optical *** is clearly shown that the introduction of air contributed to the rise of Trot and ne of the plasma,which is beneficial to improving the analytical performance of the *** the detection limits of some heavy metal elements are measured by kW-AC-ArMPT,which are in the ppb *** experimental results show that the kW-ArMPT has a high tolerance to air injection at least 1.0 L/min,which allows the direct extraction of air from the environment for analysis and therefore has the potential for online and in-situ detection of ambient air quality and industrial exhaust gases.

关键词： Air carrier gas microwave plasma torch Photographic analysis Optical diagnosis

Determination of Carbon by Means of microwave plasma torch Atomic Emission Spectrometry

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维普期刊数据库

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Chemical Research in Chinese Universities 1996年第1期12卷 32-36页

作者： ZHANG Han-qi YUAN Xiang-lin YE Dong-mei ZHAO Xiao-jun and JIN Qin-han (Department Of Chemistry, Jilin University, Changchun, 130023)ZHU Zhi-ping(Department of Chemistry, Northeast Normal University, Changchun, 130024) JILIN UNIV DEPT CHEM CHANGCHUN 130023 PEOPLES R CHINA NE NORMAL UNIV DEPT CHEM CHANGCHUN 130024 PEOPLES R CHINA

The determination of carbon by means of microwave plasma torch atomic emission spectrometry(MPT-AES) was studied. Aqueous samples were introduced with a pneumatic nebulization system. The detection limit for carbon wa... 详细信息

关键词： microwave plasma torch Atomic emission spectrometry Carbon

Determination of Cd,Pb and Sr by microwave plasma torch Atomic Emision Spectrometry Using an Electrothermal Vaporization Sample Introduction System

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Chemical Research in Chinese Universities 1998年第4期14卷 22-26页

作者： ZHAO Li-wei ZHANG Han-qí CAO Yan-bo YANG Wen-jun JIN Qun JIN Qin-han FU Yao Department of Chemistry Jilin UniversityChangchun130023 Foundational Department Jilin Architecture and Engineering CollegeChangchun130021

ＩｎｔｒｏｄｕｃｔｉｏｎＥｌｅｔｒｏｔｈｅｒｍａｌｖａｐｏｒｉｚａｔｉｏｎ（ＥＴＶ）ａｓａｍｅａｎｓｏｆｓａｍｐｌｅｉｎｔｒｏｄｕｃｔｉｏｎｉｎｍｉｃｒｏｗａｖｅｉｎ－ｄｕｃｅｄｐｌａｓｍａ（ＭＩＰ）ｓｏｕｒｃｅｓｐ... 详细信息

ＩｎｔｒｏｄｕｃｔｉｏｎＥｌｅｔｒｏｔｈｅｒｍａｌｖａｐｏｒｉｚａｔｉｏｎ（ＥＴＶ）ａｓａｍｅａｎｓｏｆｓａｍｐｌｅｉｎｔｒｏｄｕｃｔｉｏｎｉｎｍｉｃｒｏｗａｖｅｉｎ－ｄｕｃｅｄｐｌａｓｍａ（ＭＩＰ）ｓｏｕｒｃｅｓｐｅｃｔｒｏｍｅｔｒｙｈａｓｂｅｅｎ...

关键词： Atomic emission spectrometry microwave plasma torch Electrothermal vaporization

On Line Anion Exchange Preconcentration in microwave plasma torch Atomic Emission Spectrometry

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Chemical Research in Chinese Universities 1994年第1期10卷 43-44页

作者： Liang, Feng Zhang, Han-qi Jin, Qin-han

ＯｎＬｉｎｅＡｎｉｏｎＥｘｃｈａｎｇｅＰｒｅｃｏｎｃｅｎｔｒａｔｉｏｎｉｎＭｉｃｒｏｗａｖｅＰｌａｓｍａＴｏｒｃｈＡｔｏｍｉｃＥｍｉｓｓｉｏｎＳｐｅｃｔｒｏｍｅｔｒｙＬＩＡＮＧＦｅｎｇ；ＺＨＡＮＧＨａｎ－ｑｉａｎｄＪ... 详细信息

ＯｎＬｉｎｅＡｎｉｏｎＥｘｃｈａｎｇｅＰｒｅｃｏｎｃｅｎｔｒａｔｉｏｎｉｎＭｉｃｒｏｗａｖｅＰｌａｓｍａＴｏｒｃｈＡｔｏｍｉｃＥｍｉｓｓｉｏｎＳｐｅｃｔｒｏｍｅｔｒｙＬＩＡＮＧＦｅｎｇ；ＺＨＡＮＧＨａｎ－ｑｉａｎｄＪＩＮＱｉｎ－ｈａｎ（Ｄｅｐａｒｔｍ...

关键词： microwave plasma torch Atomic emission spectrometry Preconcen-tration

Studies on Combination of Flow Injection and microwave plasma torch-Atomic Emission Spectrometry

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Chemical Research in Chinese Universities 1993年第3期9卷 246-247页

作者： YE Dong-mei, ZHAO Jing-hong, ZHANG Han-qi and JIN Qin-han (Department of Chemistry, Jilin University, Changchun, 130023)DONG De-fan (Hebei College of Geology, Shijiazhuang, 050031)

Although the flow injection(FI) as a sample introduction technique has been extensively applied to atomic spectrometry, such as ICP-AES and AAS, very little has been done so far on coupling FI to microwave plasma syst... 详细信息

关键词： microwave plasma torch Flow injection Atomic emission spectrometry

Determination of Elements of Groups Ⅲ A and ⅣA Using microwave plasma torch Atomic Emission Spectrometry

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Chemical Research in Chinese Universities 1997年第2期13卷 34-40页

作者： ZHANG Han qi YUAN Xiang lin LIANG Feng LIU Si pei ZHAO Li wei JIN Qin han Department of Chemistry Jilin UniversityChangchun130023

The determination of the elements of groups ⅢA and ⅣA by means of microwave plasma torch atomic emission spectrometry(MPT AES) was studied systematically. Sample solutions were introduced into the plasma with a pneumatic nebulizer in continuous sampling mode and flow injection (FI) mode. The emission characteristics of these elements were investigated in details, and the basic data obtained are very important to the development of MPT AES. The analytical performances were examined. For most elements, the detection limits obtained by this method were principally the same as those obtained by inductively coupled plasma atomic emission spectrometry (ICP AES).

关键词： Atomic emission spectromery microwave plasma torch Groups ⅢA and ⅣA

Evaluation of microwave plasma torch (MPT) as an Excitation Source for Determination of Mercury

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Chemical Research in Chinese Universities 1992年第1期8卷 31-32页

作者： Duan Yixiang, Du Xiaoguang and Jin Qinhan (Department of Chemistry, Jilin University, Changchun)

The microwave plasma atomic spectrometry is an important branch of the plasma atomic spectrometry. Since the first use of microwave induced plasma（MIP） as an excitation source for spectral Chemical analysis by Broida and Chapmanin in 1958, especially the introduction of TM;cavity by Beenakker in 1976 and of surfatron by Moisan in 1979 with which an atmospheric pressure helium MIP could be obtained, MIP has received considerable attention as a new excitation source for spectrometric analysis. However, since MIP suffers from the in ability to analyse the aqueous sam-

关键词： microwave plasma torch Atomic spectrometry Mercury determination