EXTRACTION AND SPECIATION OF ARSENIC IN LACUSTRINE SEDIMENTS

被引：26

作者：

FICKLIN, WH

机构：

[1] U.S. Geological Survey, Denver Federal Center, Denver, CO 80225

来源：

TALANTA | 1990年 / 37卷 / 08期

关键词：

D O I：

10.1016/0039-9140(90)80127-2

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Arsenic was partially extracted with 4.OM hydrochloric acid, from samples collected at 25-cm intervals in a 350-cm column of sediment at Milltown Reservoir, Montana and from a 60-cm core of sediment collected at the Cheyenne River Embayment of Lake Oahe, South Dakota. The sediment in both reservoirs is highly contaminated with arsenic. The extracted arsenic was separated into As(III) and As(V) on acetate form Dowex 1-X8 ion-exchange resin with 0.12M HCl eluent. Residual arsenic was sequentially extracted with KClO3 and HCl. Arsenic was determined by graphite-furnace atomic-absorption spectrometry. The analytical results define oxidized and reduced zones in the sediment columns. © 1990.

引用

页码：831 / 834

页数：4

共 14 条

[1] DETAILED MODEL FOR THE MOBILITY OF ARSENIC IN LACUSTRINE SEDIMENTS BASED ON MEASUREMENTS IN LAKE OHAKURI [J].

AGGETT, J ;

OBRIEN, GA .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1985, 19 (03) :231-238

[2] ANION-EXCHANGE METHOD FOR SPECIATION OF ARSENIC AND ITS APPLICATION TO SOME ENVIRONMENTAL-ANALYSES [J].

AGGETT, J ;

KADWANI, R .

ANALYST, 1983, 108 (1293) :1495-1499

[3] EXTRACTION TECHNIQUES FOR SELECTIVE DISSOLUTION OF AMORPHOUS IRON-OXIDES FROM SOILS AND SEDIMENTS [J].

CHAO, TT ;

ZHOU, L .

SOIL SCIENCE SOCIETY OF AMERICA JOURNAL, 1983, 47 (02) :225-232

[4]

Chester R., 1967, CHEM GEOL, V2, P249, DOI DOI 10.1016/0009-2541(67)90025-3

[5] SEPARATION OF ARSENIC(III) AND ARSENIC(V) IN GROUND WATERS BY ION-EXCHANGE [J].

FICKLIN, WH .

TALANTA, 1983, 30 (05) :371-373

[6]

FICKLIN WH, 1988, 884420 US GEOL SURV, P217

[7] EVALUATION OF COLUMN CHROMATOGRAPHY AND FLAMELESS ATOMIC-ABSORPTION SPECTROPHOTOMETRY FOR ARSENIC SPECIATION AS APPLIED TO AQUATIC SYSTEMS [J].

IVERSON, DG ;

ANDERSON, MA ;

HOLM, TR ;

STANFORTH, RR .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1979, 13 (12) :1491-1494

[8] ASSESSMENT OF THE CHEMICAL AND BIOLOGICAL SIGNIFICANCE OF ARSENICAL COMPOUNDS IN A HEAVILY CONTAMINATED WATERSHED .1. THE FATE AND SPECIATION OF ARSENICAL COMPOUNDS IN AQUATIC ENVIRONMENTS - A LITERATURE-REVIEW [J].

LEMMO, NV ;

FAUST, SD ;

BELTON, T ;

TUCKER, R .

JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-ENVIRONMENTAL SCIENCE AND ENGINEERING & TOXIC AND HAZARDOUS SUBSTANCE CONTROL, 1983, 18 (03) :335-387

[9]

LICHTE FE, 1987, US GEOL SURVEY B, V1770, pB1

[10] EXTRACTION OF ARSENIC(III) AND ARSENIC(V) FROM NATURAL-WATERS FOR NEUTRON-ACTIVATION ANALYSIS [J].

MOK, WM ;

SHAH, NK ;

WAI, CM .

ANALYTICAL CHEMISTRY, 1986, 58 (01) :110-113

← 1 2 →