SYNCHROTRON X-RAY-FLUORESCENCE MICROPROBE - QUANTIFICATION AND MAPPING OF MIXED-VALENCE STATE SAMPLES USING MICRO-XANES

被引：49

作者：

SUTTON, SR

BAJT, S

DELANEY, J

SCHULZE, D

TOKUNAGA, T

机构：

[1] UNIV CHICAGO,CTR ADV RADIAT SOURCES,CHICAGO,IL 60637

[2] BROOKHAVEN NATL LAB,DEPT APPL SCI,UPTON,NY 11973

[3] RUTGERS STATE UNIV,DEPT GEOL SCI,NEW BRUNSWICK,NJ 08903

[4] PURDUE UNIV,DEPT AGRON,W LAFAYETTE,IN 47907

[5] UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,DIV EARTH SCI,BERKELEY,CA 94720

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 1995年 / 66卷 / 02期

关键词：

D O I：

10.1063/1.1145942

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The synchrotron x-ray fluorescence microprobe is a valuable instrument for quantification and mapping of mixed valence state samples with high spatial resolution and elemental sensitivity. A method has been developed for quantifying the proportions of Fe2+ and Fe3+ with 100 μm spatial resolution and better than 100 ppm sensitivity using x-ray absorption near-edge structure (XANES). Applications of valence state mapping have been made to selenium in water-saturated sediments and manganese associated with wheat roots attacked by the take-all fungus. © 1995 American Institute of Physics.

引用

页码：1464 / 1467

页数：4

共 13 条

[1]

BAJT S, IN PRESS GEOCHIM COS

[2] TRACE-ELEMENT DETERMINATIONS WITH SYNCHROTRON-INDUCED X-RAY-EMISSION [J].

JONES, KW ;

GORDON, BM .

ANALYTICAL CHEMISTRY, 1989, 61 (05) :A341-&

[3]

JONES KW, 1987, SPIE, V749, P37

[4] SYNCHROTRON X-RAY-FLUORESCENCE ANALYSIS OF ROCK-FORMING MINERALS .1. COMPARISON WITH OTHER TECHNIQUES .2. WHITE-BEAM ENERGY-DISPERSIVE PROCEDURE FOR FELDSPARS [J].

LU, FQ ;

SMITH, JV ;

SUTTON, SR ;

RIVERS, ML ;

DAVIS, AM .

CHEMICAL GEOLOGY, 1989, 75 (1-2) :123-143

[5]

MANCEAU A, 1992, AM MINERAL, V77, P1133

[6]

Rivers M. L., 1995, Review of Scientific Instruments, V66, DOI 10.1063/1.1145937

[7]

Rivers M. L., 1995, Review of Scientific Instruments, V66, DOI 10.1063/1.1145938

[8]

RIVERS ML, 1989, MATER RES SOC S P, V143, P285

[9]

SCHULZE D, UNPUB

[10]

SUTTON S, 1994, LUNAR PLANET SCI, V25, P1361

← 1 2 →