Chemistry Reference
In-Depth Information
TABLE 8.8 (continued)
Determination of Metals of the V, VI, VII, and VIII Group at Carbon Paste Electrodes, Sensors, and Detectors: Survey of Methods
and Selected Studies
Type of CPE
(Modiier)
Technique
(Mode)
Measuring Principles
(Method Sequences)
Linearity Range
(LOD;
t
ACC
/
t
R
)
Other Speciication
(Remarks)
Ion, Species
Sample(s)
Ref(s)
Mo
VI
.(MoO
4
2−
)
C/PO.(
Luminol
;.
in situ
)
LSV-ECL
Amplifying.effect.of.
Mo
VI
.on.ECL.(via.
modif..redn.)
5.×.10
−4
−0.01.mg.
L
−1
(−)
Model.solns.
Luminol:
.reagent.(org..
hydrazide);.providing.blue.
luminescent.signal.in.
presence.of.H
2
O
2
.
(intermediate)
interfs..studies.with.sel..MeO
m
n
−
[2323]
W
VI
W
VI
.(WO
4
2−
)
C/Uv.
(impregnated.
with.SH-
oxin
.
in.DMSO)
CSV
accum..via.compl..with.
modif.;.cathodic.redn.
5.×.10
−4
−0.001.M.(−)
Model.solns..
(complex.
mixts.)
SH-
oxin
:.8-thioquinoline;.s.e.:.
HCl-based.solns;.study.on.
reaction.kinetics.of.
irreversible.elec..redn.
[2324]
U
IV,VI
U
VI
.(UO
2
2+
)
C/SO.(Pr
III
-
gallate)
DPV.
(online)
accum..by.chelating
Anodic.reoxidn.
(<1.×.10
−7
.M)
Groundwater.
(sampled.in.
caves)
CPE.designed.for.remote.
sensing.(connected.to.
shielded.long.cable)
[1379]
U
VI
.(UO
2
2+
)
s-CPE.(C/Wx).
(CPHA-MS)
AdSV.
(SWV)
accum..via.adsorption.of.
the.complex.UO
2
-CPH
Cathodic.redn.:.
U
VI
→ U
IV
5-50.ppb.
(1.ppb; 20.min)
Model.solns.
s-CPE:.solid-like.el..made.of.
parafin.wax;.CPHA-MS:.
carbamoyl-phosphonic.acid.
in.mesoporous.silica
[770]
U
VI
.(UO
2
2+
)
C/PO.(B15C5)
DPASV,.
CV,.EIS
accum..Via.intercalation.
effect.of.modif.;.redn.
Anodic.reoxidn.
0.002-0.2.μg.mL
−1
.
(1.1.ng.mL
−1
;.5.min)
Real.samples.
(nat..waters)
modif.:.benzo-15-crown-5.
(as 5%.in.CP-bulk);.comp..
with.ICP-AES
[1402]
Mn
II-VII
Mn
2+
,.Mn
IV
C/SO.(unm.)
ASV,.CSV
Electrolytic.accum..as.
Mn
0
.or.MnO
2
;.reoxidn..
(redn.)
(5.×.10
−8
.M;.10.min)
Model.solns.
s.e.:.0.1.M.HCl.+.0.1.M.KCl
compr..of.detn..as.Mn
II
.
or Mn
IV
[2325]
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