DETERMINATION OF ULTRATRACE NEODYMIUM IN HIGH-PURITY LANTHANUM COMPOUNDS BY HIGH-ACCURACY ISOTOPE-DILUTION INDUCTIVELY-COUPLED PLASMA-MASS SPECTROMETRIC ANALYSIS WITH CHEMICAL PRECONCENTRATION

被引：8

作者：

BEARY, ES

PAULSEN, PJ

机构：

[1] Center for Analytical Chemistry, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, Building 222

来源：

ANALYTICAL CHEMISTRY | 1994年 / 66卷 / 04期

关键词：

D O I：

10.1021/ac00076a004

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Direct, accurate quantitation of ultratrace Nd in La compounds was not possible by ICPMS. The La/Nd ratio of > 10(6) required chemical separations to provide a suitable sample solution for instrumental analysis. Separation of Nd from the La matrix is problematic since the two elements are close in mass and similar in chemical behavior. The ICPMS in a semiquantitative survey mode proved to be a valuable tool in developing the required separations. Nd was quantified using isotope dilution which requires neither 100% recovery nor absolute isolation of the Nd, resulting in considerable flexibility in the design of preconcentration procedures. Nanogram per gram quantities of Nd in high-purity La compounds were determined using this procedure.

引用

页码：431 / 439

页数：9

共 18 条

[1] LASER ABLATION OF SOLIDS FOR ELEMENTAL ANALYSIS BY INDUCTIVELY COUPLED PLASMA MASS-SPECTROMETRY [J].

ARROWSMITH, P .

ANALYTICAL CHEMISTRY, 1987, 59 (10) :1437-1444

[2] APPROACHES TO THE ACCURATE CHARACTERIZATION OF HIGH-PURITY METAL FLUORIDES AND FLUORIDE GLASSES [J].

BEARY, ES ;

PAULSEN, PJ ;

RAINS, TC ;

EWING, KJ ;

JAGANATHAN, J ;

AGGARWAL, I .

JOURNAL OF CRYSTAL GROWTH, 1990, 106 (01) :51-60

[3] DETERMINATION OF TRACE-METALS IN REFERENCE WATER STANDARDS BY INDUCTIVELY COUPLED PLASMA MASS-SPECTROMETRY WITH ONLINE PRECONCENTRATION [J].

BEAUCHEMIN, D ;

BERMAN, SS .

ANALYTICAL CHEMISTRY, 1989, 61 (17) :1857-1862

[4]

DREXHAGE MG, 1988, SCI AM, P110

[5] ISOTOPE-DILUTION MASS-SPECTROMETRY FOR ACCURATE ELEMENTAL ANALYSIS [J].

FASSETT, JD ;

PAULSEN, PJ .

ANALYTICAL CHEMISTRY, 1989, 61 (10) :A643-&

[6] INDUCTIVELY COUPLED ARGON PLASMA AS AN ION-SOURCE FOR MASS-SPECTROMETRIC DETERMINATION OF TRACE-ELEMENTS [J].

HOUK, RS ;

FASSEL, VA ;

FLESCH, GD ;

SVEC, HJ ;

GRAY, AL ;

TAYLOR, CE .

ANALYTICAL CHEMISTRY, 1980, 52 (14) :2283-2289

[7] DETERMINATION OF IRON, COBALT, NICKEL, AND COPPER IN HAFNIUM FLUORIDE BY GF-AAS [J].

JAGANATHAN, J ;

AGGARWAL, I .

APPLIED SPECTROSCOPY, 1993, 47 (02) :190-191

[8] DETERMINATION OF RHENIUM IN GROUNDWATER BY INDUCTIVELY COUPLED PLASMA MASS-SPECTROMETRY WITH ONLINE CATION-EXCHANGE MEMBRANE SAMPLE CLEANUP [J].

KETTERER, ME .

ANALYTICAL CHEMISTRY, 1990, 62 (23) :2522-2526

[9] NBS CLEAN LABORATORIES FOR TRACE-ELEMENT ANALYSIS [J].

MOODY, JR .

ANALYTICAL CHEMISTRY, 1982, 54 (13) :1358-&

[10] INDUCTIVELY COUPLED PLASMA MASS-SPECTROMETRIC ANALYSIS OF ULTRAPURE ACIDS [J].

PAULSEN, PJ ;

BEARY, ES ;

BUSHEE, DS ;

MOODY, JR .

ANALYTICAL CHEMISTRY, 1988, 60 (10) :971-975

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