IN-SITU DETERMINATION OF URANIUM IN SOIL BY LASER ABLATION-INDUCTIVELY COUPLED PLASMA-ATOMIC EMISSION-SPECTROMETRY

被引:10
作者
ZAMZOW, DS [1 ]
BALDWIN, DP [1 ]
WEEKS, SJ [1 ]
BAJIC, SJ [1 ]
DSILVA, AP [1 ]
机构
[1] US DOE,AMES LAB,AMES,IA 50011
关键词
D O I
10.1021/es00051a024
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The concentration of uranium in soil has been determined for 80 sites in an area suspected to have uranium contamination by in situ laser ablation-inductively coupled plasma atomic emission spectrometry (LA-ICPAES), utilizing a field-deployable mobile analytical laboratory. For 15 of the 80 sites analyzed, soil samples were collected so that the field LA-ICPAES results could be compared to laboratory-determined values. Uranium concentrations determined in the field by LA-ICPAES for these 15 sites range from <20 parts per million (ppm) by weight to 285 ppm. The uncertainty in the values determined, however, is large relative to the uranium concentrations encountered at this site. The 95% confidence interval (CI) values are approximately 85 ppm. The uranium concentrations determined by laboratory LA-ICPAES analysis range from <20 to 102 ppm (95% CI of approximately 50 ppm); microwave dissolution and subsequent standard addition determination of uranium by solution nebulization ICPAES using an ultrasonic nebulizer yields 19-124 ppm uranium (95% CI of approximately 10 ppm). For 11 of the 15 samples, the field- and laboratory-determined uranium concentrations agree, within the uncertainty of the determined values.
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页码:352 / 358
页数:7
相关论文
共 19 条
[1]  
ANDERSON MS, 1992, P INT TOPICAL M NUCL, V1, P81
[2]   ENTRAINMENT AND TRANSPORT OF LASER ABLATED PLUMES FOR SUBSEQUENT ELEMENTAL ANALYSIS [J].
ARROWSMITH, P ;
HUGHES, SK .
APPLIED SPECTROSCOPY, 1988, 42 (07) :1231-1239
[3]  
BOUMAS PWJ, 1984, LINE COINCIDENCE TAB
[4]   LASER VAPORIZATION OF SOLID METAL SAMPLES INTO AN INDUCTIVELY COUPLED PLASMA [J].
CARR, JW ;
HORLICK, G .
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY, 1982, 37 (01) :1-15
[5]  
DITTRICH K, 1984, PROG ANAL ATOM SPECT, V7, P139
[6]   INDUCTIVELY COUPLED PLASMA-ATOMIC EMISSION-SPECTROSCOPY - COMPUTER-CONTROLLED, SCANNING MONOCHROMATOR SYSTEM FOR THE RAPID SEQUENTIAL DETERMINATION OF THE ELEMENTS [J].
FLOYD, MA ;
FASSEL, VA ;
WINGE, RK ;
KATZENBERGER, JM ;
DSILVA, AP .
ANALYTICAL CHEMISTRY, 1980, 52 (03) :431-438
[8]   QUANTITATIVE-ANALYSIS OF ORIGINAL AND POWDERED ROCKS AND MINERAL INCLUSIONS BY LASER ABLATION INDUCTIVELY COUPLED PLASMA MASS-SPECTROMETRY [J].
IMAI, N .
ANALYTICA CHIMICA ACTA, 1990, 235 (02) :381-391
[9]  
ISHIZUKA T, 1980, ANAL CHEM, V252, P125
[10]  
MCLEOD CW, 1992, INDUCTIVELY COUPLED, P753