Chemistry Reference
In-Depth Information
TABLE 8.3
Determination of Mercury 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
)
Form (Species)
Sample(s)
Other Speciication (Remarks)
Ref(s)
Hg
2+
C/Nj
LSV
Electrolytic.accum.
0.8-2.5.μg.L
−1
Model.solns.
s.e.:.3.6.M.Li
2
SO
4
incl..interf..study
[2214]
Hg
II
.
(Hg(SCN
4
)
2−
)
C/Nj
LSV
Electrolytic.accum.
1.×.10
−9
-1.×.10
−7
.M
Human.urine
s.e.:.0.1.M.KSCN.+.0.03.M.HCl
In.the.presence.of.Cu
2+
[2215]
Hg
2+
C/Nj.(zeolite)
SWV,.CV
accum..by.ion-pairing
Cathodic.redn..of.Hg
II
0.1-2.2.mg.L
−1
.(0.1.mg.
L
−1
,.6.min)
Model.solns.
s.e.:.KNO
3
-based.solns.
incl..pH.studies
[828]
Hg
2+
C/Nj.(crown.
ethers)
DPASV
accum..by.compl..and.
adsorption;.cathodic.redn.
10-60.mM
Model.solns.
modifs.:.two.diff..crown.ethers
s.e.:.acetate.buffer.(pH.4)
[1391]
Hg
2+
C/Nj.
(1-spartein)
DPV
accum..by.compl.
Cathodic.redn..of.Hg
II
5.×.10
−7
-2.×.10
−6
.M
Waters
CPE.regnt..in.acetate.buffer
Ag
+
.interf.,.suppr..by.adding.KCl
[2216]
Hg
II
.
(Hg(SCN
4
)
2−
)
C/PO.
(1,5-DPC)
DPV
accum..by.compl.
Cathodic.redn.
4.×.10
−7
-3.×.10
−5
.M.
(5 × 10
−9
.M)
Model.solns.
modif.:.1,5-diphenyl.carbazide
s.e.:.0.1.M.KSCN,.Cu
2+
.interf.
[1319]
Hg
2+
C/PO.(humic.
acid)
DPV
accum..by.compl.
Cathodic.redn.
5.×.10
−8
-5.×.10
−7
.M
Model.solns.
Cu
2+
.interf..(
c
Cu
:.
c
Hg
.=.10:.1)
[1693]
Hg
2+
C/Nj.(NaTPB,.
in situ
)
DPASV
det..via.decrease.of.peak.of.
TPB.(undirect.method)
1.×.10
−8
-1.×.10
−6
.M.
(5 × 10
−9
.M;.10.s)
Natural.water.
(spiked)
NaTPB:.sodium.tetraphenyl.borate
No.interf..from.Ag
+
,.Cu
2+
,.Bi
3+
[2217]
Hg
2+
C/Nj.(SiO
2
.+.
TBIM)
DPASV
accum..by.compl.
redn.;.anodic.reoxidn.
0.1-2.0.ng.L
−1
Model.solns.
TBIM:.3-(2-thiobenzimidazolyl)-
funct..group.attached.to.silica.gel
[1827]
(HgCl
4
2−
,.
HgC
6
H
5
+
)
C/PO.(
Amberlit
LA-2
)
DPASV
o.c.-accum..by.ion.pairing
MEx;.redn.;.reoxidn.
pharms.
Applicable.to.detn..phenylmercury.
compds;.Ag.and.Pt-metals.interfs.
[800]
1-1000.μg.L
−1
.(1.μg.
L
−1
,.15.min)
Hg
2+
C/PO.(TQZ)
DPASV
o.c.-accum..via.compl.
MEx;.redn.;.reoxidn.
5-6000.μg.L
−1
.(0.1.μg.
L
−1
,.15.min)
Sewage.sludge,.
plant
TQZ:.2-thio-4(3H)-quinazoline
[1320]
Hg
2+
.(+Me
2+
)
C/PO.
(
Amberlite
IRC-718
)
DPASV
accum..via.chelating.with.
modif.;.redn..+.reoxidn.
(mg.L
−1
.level)
Model.solns.
Me:.Zn,.Cd,.Pb,.and.Cu;.study.on.
selective.retention.with.the.aid.of.
modif..and.possible.speciation
[1738]
(
continued
)
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