DETERMINATION OF URANIUM IN MARINE SEDIMENT PORE WATERS BY ISOTOPE-DILUTION INDUCTIVELY COUPLED PLASMA MASS-SPECTROMETRY

被引:31
作者
TOOLE, J [1 ]
MCKAY, K [1 ]
BAXTER, M [1 ]
机构
[1] SCOTTISH UNIV RES & REACTOR CTR,E KILBRIDE G75 0QU,LANARK,SCOTLAND
关键词
MASS SPECTROMETRY; PLASMAS; ISOTOPE DILUTION; SEA WATER; URANIUM; WATERS;
D O I
10.1016/S0003-2670(00)80205-6
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Inductively coupled plasma mass spectrometry (ICP-MS) was used in an isotope dilution mode to assay small-volume (0.25 ml) sediment pore waters for their uranium contents, using U-236 as the spike. The only pretreatment required was a simple dilution by a factor of 20, which gave sufficient volume for three replicate analyses per sample. Rapid and accurate results were obtained for a variety of samples and standards, ranging in concentration from 0.05 to 10 ng U ml-1. A suite of 30 samples can be analysed in less than 6 h by this method. The relative standard deviation was better than 1.9%, with a detection limit, based on 3-sigma background, of 2 pg U ml-1 in solution (40 pg ml-1 in samples). Sea water is a difficult matrix for ICP-MS and thus the method is generally suitable for uranium determinations in many other sample solutions.
引用
收藏
页码:83 / 88
页数:6
相关论文
共 23 条
[1]   URANIUM REMOVAL IN OCEANIC SEDIMENTS AND THE OCEANIC-U BALANCE [J].
BARNES, CE ;
COCHRAN, JK .
EARTH AND PLANETARY SCIENCE LETTERS, 1990, 97 (1-2) :94-101
[2]   DETERMINATION OF TRACE-METALS IN AN OPEN OCEAN WATER REFERENCE MATERIAL BY INDUCTIVELY COUPLED PLASMA MASS-SPECTROMETRY [J].
BEAUCHEMIN, D ;
MCLAREN, JW ;
MYKYTIUK, AP ;
BERMAN, SS .
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY, 1988, 3 (02) :305-308
[3]   DETERMINATION OF URANIUM IN ENVIRONMENTAL-SAMPLES USING INDUCTIVELY COUPLED PLASMA MASS-SPECTROMETRY [J].
BOOMER, DW ;
POWELL, MJ .
ANALYTICAL CHEMISTRY, 1987, 59 (23) :2810-2813
[4]   URANIUM THORIUM AND THEIR ISOTOPES IN CORES FROM ANGOLA BASIN (SOUTHEASTERN ATLANTIC) [J].
BOULAD, AP ;
MICHARD, G .
EARTH AND PLANETARY SCIENCE LETTERS, 1976, 32 (01) :77-83
[5]   U-238,U-234 AND TH-232 IN SEAWATER [J].
CHEN, JH ;
EDWARDS, RL ;
WASSERBURG, GJ .
EARTH AND PLANETARY SCIENCE LETTERS, 1986, 80 (3-4) :241-251
[6]   THE GEOCHEMISTRY OF URANIUM AND THORIUM IN COASTAL MARINE-SEDIMENTS AND SEDIMENT PORE WATERS [J].
COCHRAN, JK ;
CAREY, AE ;
SHOLKOVITZ, ER ;
SURPRENANT, LD .
GEOCHIMICA ET COSMOCHIMICA ACTA, 1986, 50 (05) :663-680
[7]   RADIUM, THORIUM, URANIUM, AND PB-210 IN DEEP-SEA SEDIMENTS AND SEDIMENT PORE WATERS FROM THE NORTH EQUATORIAL PACIFIC [J].
COCHRAN, JK ;
KRISHNASWAMI, S .
AMERICAN JOURNAL OF SCIENCE, 1980, 280 (09) :849-889
[8]   URANIUM RELOCATIONS AND DERIVATION OF QUASI-ISOCHRONS FOR A TURBIDITE PELAGIC SEQUENCE IN THE NORTHEAST ATLANTIC [J].
COLLEY, S ;
THOMSON, J ;
TOOLE, J .
GEOCHIMICA ET COSMOCHIMICA ACTA, 1989, 53 (06) :1223-1234
[9]   CARBONATE CHEMISTRY IN MARINE PORE WATERS - MANOP SITE-C AND SITE-S [J].
EMERSON, S ;
GRUNDMANIS, V ;
GRAHAM, D .
EARTH AND PLANETARY SCIENCE LETTERS, 1982, 61 (02) :220-232
[10]   MASS-SPECTROMETRY OF INDUCTIVELY COUPLED PLASMAS [J].
HOUK, RS .
ANALYTICAL CHEMISTRY, 1986, 58 (01) :A97-&