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DETERMINATION OF SELENIUM IN SEA-WATER BY ADSORPTIVE CATHODIC STRIPPING VOLTAMMETRY
被引:104
作者
:
VAN DEN BERG, CMG
论文数:
0
引用数:
0
h-index:
0
机构:
Oceanography Laboratories, Department of Earth Sciences, University of Liverpool, Liverpool, L69 3BX
VAN DEN BERG, CMG
KHAN, SH
论文数:
0
引用数:
0
h-index:
0
机构:
Oceanography Laboratories, Department of Earth Sciences, University of Liverpool, Liverpool, L69 3BX
KHAN, SH
机构
:
[1]
Oceanography Laboratories, Department of Earth Sciences, University of Liverpool, Liverpool, L69 3BX
来源
:
ANALYTICA CHIMICA ACTA
|
1990年
/ 231卷
/ 02期
关键词
:
D O I
:
10.1016/S0003-2670(00)86420-X
中图分类号
:
O65 [分析化学];
学科分类号
:
070302 ;
081704 ;
摘要
:
A procedure is presented for determining Se(IV) and total dissolved Se in sea water using cathodic stripping voltammetry in the presence of added copper. Experiments using cyclic voltammetry indicate that the preconcentration step consists in adsorption of a Cu(I)2Se complex species on the hanging mercury drop electrode. The optimized analytical conditions include a copper concentration of 40 μM and a solution pH of 1.6. Differential pulse modulation is used. Interference caused by organic surface-active substances present in natural waters in eliminated by UV photolysis of the sample. Cadmium interferes with the determination of Se only when present at a concentration 100 times higher than normal. UV photolysis at pH ≈ 8 is used to convert Se(VI), which is the electroactive species. The response is linear for Se concentrations between 0 and 200 nM. The limit of detection is 0.01 nM Se when a deposition time of 15 min is used. © 1990.
引用
收藏
页码:221 / 229
页数:9
相关论文
共 23 条
[21]
DETERMINATION OF COPPER IN SEA-WATER BY CATHODIC STRIPPING VOLTAMMETRY OF COMPLEXES WITH CATECHOL
[J].
VAN DEN BERG, CMG
论文数:
0
引用数:
0
h-index:
0
VAN DEN BERG, CMG
.
ANALYTICA CHIMICA ACTA,
1984,
164
(OCT)
:195
-207
[22]
ANIONIC SPECIES OF V, AS, SE, MO, SB, TE AND W IN THE SCHELDT AND RHINE ESTUARIES AND THE SOUTHERN BIGHT (NORTH-SEA)
[J].
VANDERSLOOT, HA
论文数:
0
引用数:
0
h-index:
0
机构:
NETHERLANDS INST SEA RES,1790 AB DEN BURG,NETHERLANDS
NETHERLANDS INST SEA RES,1790 AB DEN BURG,NETHERLANDS
VANDERSLOOT, HA
;
HOEDE, D
论文数:
0
引用数:
0
h-index:
0
机构:
NETHERLANDS INST SEA RES,1790 AB DEN BURG,NETHERLANDS
NETHERLANDS INST SEA RES,1790 AB DEN BURG,NETHERLANDS
HOEDE, D
;
WIJKSTRA, J
论文数:
0
引用数:
0
h-index:
0
机构:
NETHERLANDS INST SEA RES,1790 AB DEN BURG,NETHERLANDS
NETHERLANDS INST SEA RES,1790 AB DEN BURG,NETHERLANDS
WIJKSTRA, J
;
DUINKER, JC
论文数:
0
引用数:
0
h-index:
0
机构:
NETHERLANDS INST SEA RES,1790 AB DEN BURG,NETHERLANDS
NETHERLANDS INST SEA RES,1790 AB DEN BURG,NETHERLANDS
DUINKER, JC
;
NOLTING, RF
论文数:
0
引用数:
0
h-index:
0
机构:
NETHERLANDS INST SEA RES,1790 AB DEN BURG,NETHERLANDS
NETHERLANDS INST SEA RES,1790 AB DEN BURG,NETHERLANDS
NOLTING, RF
.
ESTUARINE COASTAL AND SHELF SCIENCE,
1985,
21
(05)
:633
-651
[23]
von Stackelberg M, 1940, Z ELKTROCHEM ANGEW P, V46, P120
←
1
2
3
→
共 23 条
[21]
DETERMINATION OF COPPER IN SEA-WATER BY CATHODIC STRIPPING VOLTAMMETRY OF COMPLEXES WITH CATECHOL
[J].
VAN DEN BERG, CMG
论文数:
0
引用数:
0
h-index:
0
VAN DEN BERG, CMG
.
ANALYTICA CHIMICA ACTA,
1984,
164
(OCT)
:195
-207
[22]
ANIONIC SPECIES OF V, AS, SE, MO, SB, TE AND W IN THE SCHELDT AND RHINE ESTUARIES AND THE SOUTHERN BIGHT (NORTH-SEA)
[J].
VANDERSLOOT, HA
论文数:
0
引用数:
0
h-index:
0
机构:
NETHERLANDS INST SEA RES,1790 AB DEN BURG,NETHERLANDS
NETHERLANDS INST SEA RES,1790 AB DEN BURG,NETHERLANDS
VANDERSLOOT, HA
;
HOEDE, D
论文数:
0
引用数:
0
h-index:
0
机构:
NETHERLANDS INST SEA RES,1790 AB DEN BURG,NETHERLANDS
NETHERLANDS INST SEA RES,1790 AB DEN BURG,NETHERLANDS
HOEDE, D
;
WIJKSTRA, J
论文数:
0
引用数:
0
h-index:
0
机构:
NETHERLANDS INST SEA RES,1790 AB DEN BURG,NETHERLANDS
NETHERLANDS INST SEA RES,1790 AB DEN BURG,NETHERLANDS
WIJKSTRA, J
;
DUINKER, JC
论文数:
0
引用数:
0
h-index:
0
机构:
NETHERLANDS INST SEA RES,1790 AB DEN BURG,NETHERLANDS
NETHERLANDS INST SEA RES,1790 AB DEN BURG,NETHERLANDS
DUINKER, JC
;
NOLTING, RF
论文数:
0
引用数:
0
h-index:
0
机构:
NETHERLANDS INST SEA RES,1790 AB DEN BURG,NETHERLANDS
NETHERLANDS INST SEA RES,1790 AB DEN BURG,NETHERLANDS
NOLTING, RF
.
ESTUARINE COASTAL AND SHELF SCIENCE,
1985,
21
(05)
:633
-651
[23]
von Stackelberg M, 1940, Z ELKTROCHEM ANGEW P, V46, P120
←
1
2
3
→