Electroanalysis with Carbon Paste–Based Electrodes, Sensors, and Detectors - Electroanalysis with Carbon Paste Electrodes - page 216

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 I C/PO.+.memb..

(BNSAO)

POT.
(dir., titr.)

Chemical.equilibrium.and.
steady-state.potential.for.
Ag + .↔.Ag I -compl.

9.×.10 −7 -0.03.M.
(4 × 10 −7 .M)

Cosmetics,.
radiology.ilms

BNSAO:.bis.5-(4-nitrophenyl-
azo).salicylaldimine.( Schiff
base );.CPE.compared.with.
similar.CWE

[2213]

Ag + C/PO..(DPSG) POT.(dir.) Chemical.equilibrium.and.

steady-state.potential.for.
Ag + .↔.Ag I -compl.

5.×.10 −7 -0.1.M.
(1 × 10 −7 .M)

Wastewater DPSG:.dipyridyl-functionalized.

silica.gel;.s.s.:.AcB.(pH.5.5)
CPE.long.stable.(>6.months)

[1869]

Ag + C/PO.(AMQ) DPASV accum..via.ion-pairing

redn..+.anodic.reoxidn.

1-300.μg.L −1 .
(0.4.μg L −1 ;.12.min)

Natural.waters,.
photographic.
ilms

AMQ:.3-amino-2-mercapto.
quinazolin-4-one;.comp..with.
GF-AAS

[1335]

Ag + C/PO.

(Tu-SBA-15)

DPASV accum..via.complexation

redn..+.anodic.reoxidn.

8-80.pmol.L −1 .
(5 × 10 −12 .M)

Tap.and.sea.water mdf.:.phenylthiourea-nanoporous.

silica.gel.(10%.w/w.in.the.paste)
Results.compared.with.GF-AAS

[1868]

Ag + C/PO.(p-IPCX) DPASV accum..via.complexation

redn..+.anodic.reoxidn.

5.×.10 −8 -2.×.10 −6 .M.
(5.×.10 −8 .M)

X-ray.photographic.
ilm

pIPCX. p -isopropylcalix[6]arene;.
s.e.:.0.1.M.H 2 SO 4 .+.0.02.M.KBr

[1433]

Ag + DPEs.[D/PO].

(unm.,.three.
types)

DPASV accum..(electrolytic.redn.)

Anodic.reoxidn.

0.5-10.0.μg.L −1 .
(<0.5.μg.L −1 )

Residual.water DPEs.made.of.nat..and.two.synth..

diamond.powders;. E P .=.+0.08V.
vs..ref.;.interfs..study.(Mn,.Cr,.
Fe,.Cu)

[353]