Chemistry Reference
In-Depth Information
TABLE 8.2 (continued)
Determination of Silver at Carbon Paste Electrodes, Sensors, and Detectors: Survey of Methods and Selected Studies
Form,
Species
Type of CPE
(Modiier)
Technique
(Mode)
Measuring Principles
(Method Sequences)
Linearity Range
(LOD;
t
ACC
/
t
R
)
Sample(s)
Other Speciication (Remarks)
Ref(s)
Ag
+
C/Nj.(chelating.
cmpd)
CV,.LSV,.
DPV
compl..b
y
.−S−.groups
Cathodic.redn.
1.×.10
−9
-1.×.10
−6
.M.
(1.nM;.20.min)
CRMs.(−)
Regeneration.in.min..acid
No.interfs..from.Hg
II
.(at.pH.5-6)
[1328]
Ag
+
C/PO.(AgI)
POT
Equilibrium.potential
Liquid.membrane.ISE
5.×.10
−7
-0.01.M.
(0.1.μM)
Fixing.and.waste.
electroplate.solns.
Response.slope:.63.±.2.mV
[2202]
Ag
+
C/Nj.
(2,2′-dithiopy.)
CV,.LSV,.
DPV
compl..by.−S−.groups
Cathodic.redn.
—
Model.solns.
comp..with.other.subst..pys
incl..interf..studies
[1329]
Ag
+
C/PO.(unm.)
LSV
Electrolytic.dep.
Anodic.reoxidn.
1.×.10
−8
-1.×.10
−7
.M.
(<10.nM;.—)
Model.solns.
s.e.:.0.5.M.KNO
3
detn..in.presence.of.Hg
2+
[2203]
Ag
+
C/Nj.(phen.drv..+.
surf.)
DPV
compl..via.ion-pairing
Cathodic.redn.
8.×.10
−10
-5.×.10
−7
.M.
(0.5.nM;.—)
Wastewater
s.e.:.HNO
3
-based.medium
incl..interf..Studies
[1660,2204]
Ag
+
C/Nj.
(cinchonidine)
CV,.DPV
compl..via.ion-pairing
Cathodic.redn.
8.×.10
−9
-1.×.10
−6
.M.
(0.8.nM;.20.min)
Model.solns.
s.e.:.neutral.medium.(pH.7)
interfs..from.Hg
II
.and.Mn
II
[2205]
Ag
+
C/Nj.(CYNQ)
LSV
compl..in.open.circuit
redn..after.MEx
1.×.10
−7
-8.×.10
−5
.M.
(50.nM;.10.min)
Model.solns.
CYNQ:.2,3-dicyano-1,4-
naphthoquinone
[1331]
Ag
+
C/PO.(unm.)
CV,.ASV
Cathodic.electrodep.
Anodic.reoxidn.
5.×.10
−9
-1.×.10
−5
.M.
(5.nM;.—)
Model.solns.
no.interfs..from.Cr
III
,.Ni
II
,.Mn
II
,.
Zn
II
,.and.Pb
II
[2206]
Ag
+
C/Uv.(MI)
DPASV
o.c.-accum.;.MEx
redn.;.anodic.reoxidn.
0.5-1000.mg.L
−1
.
(0.1.mg.L
−1
;.5.min)
pharms.
MI:.2-mercaptoimidazole;.interfs..
from.other.ions.elim..by.EDTA
[1330]
Ag
+
,.Hg
2+
C/Nj.(GHA)
CV,.DPV
accum..by.compl.
Cathodic.redn..+.regnt.
(1.×.10
−10
.M;.40.min)
CRM.(urine)
GHA:.glyoxal.bis(2-hydroxyanil)
simult..detn..of.Ag
+
.+.Hg
2+
[1322]
Ag
+
C/TCP.
(C
7
H
15
SO
3
Na)
DPASV
Ion-pairing.via.modif..
in situ
;.redn..+.anodic.detc.
3.×.10
−12
-2.×.10
−5
.M.
(<1.pM;.120.min)
Tap.water
elchem..cathodic.pretreat..of.CPE
interfs..from.Hg
II
.and.Cu
II
.
elim. by.EDTA,.from.Au
III
.by.
column.sep.
[182]
Ag
+
,.Cu
2+
C/PO.(−)
ASV
Electrolytic.accum.
Anodic.reoxidn.
Model.solns.
Regeneration.of.CPE.in.dil..HNO
3
incl..studies.on.pH.of.s.e.
[2207]
0.05-150.μg.L
−1
.
(10.min)
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