Electroanalysis with Carbon Paste–Based Electrodes, Sensors, and Detectors - Electroanalysis with Carbon Paste Electrodes - page 226

TABLE 8.4 (continued)
Determination of Copper 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)

Cu 2+ C/SO,.C/PO.

(+AuF)

SP.(CCSA) accum..by.electrolytic.

redn.
reoxidn..with. I CONST

(5.ppb;.10.min) Model.solns. Au-ilm.plated. in situ .or.preplated

Simultaneous.detn..of.Cu 2+ .+.Hg 2+

[1993]

Cu 2+ C/PO.

(salicylaldoxime)

CV,.ASV o.c..accum..via.compl.

el..redn./anodic.reoxidn.

0.1-10.ppm.(0.1.ppm;.
3.min)

Wastewater,.wine s.e.:.diluted.HNO 3 ;.intermediate.

reduction.for.100.s

[1344]

Cu 2+ C/PO.(Z) DPCSV o.c..accum..via.sorption

MEx/cathodic.redn.

5.×.10 −8 -5.×.10 −6 .M.
(2.×.10 −8 .M,.3.min)

Model.and.real.
samples

Z:.natural.zeolite.(modif.);.accum./
regeneration.scheme.during.anal.

[1142]

Cu 2+ C/SO.(+BiF/BiP) SWASV accum..onto.Bi.via.Cu a Bi b .

alloy.formation;.reoxidn.

5-100.μg.L −1 .(2.ppb;.
2.min)

Model.solns. CPE.either.with.BiF.or.dispersed

Bi-powder;.s.e.:.0.2.M.AcB.(4.5),.
0.2.M.AmB.(pH.10)

[2240]

Cu 2+ C/PO.(ARS/

S 2 O 8 2− )

CtAdSV,.2nd.
DLSV

o.c..accum..via.compl..+.
adsorption/el..redn./el..
catalyst-assisted.reoxidn.

8.×.10 −10 -3.×.10 −8 .M.
(2.×.10 −10 .M,.3.min)

Natural.water,.
soil.samples

s.e.:.BRB.(pH.4.6);.modif.. in situ ;.no.
regeneration.required

[687]

Cu 2+ C/PO.[calix[4]

arene]

DPASV o.c..accum..via.

intercalation
el..redn./anodic.reoxidn.

(0.1.μg.L −1 ;.10.min) Tap.water s.e.:.buffer.(pH.6.5-7.5);.analysis.

compared.to.the.reference.(AAS)

[1431]

Cu 2+ ,.Cu + C/PO.(nano-Pt) CV,.ASV el..accum..Cu II .→.Cu I .→.

Cu 0 .with.intermediate.
catalysis
Anodic.reoxidn.

4.×.10 −8 -2.×.10 −6 .M.
(4. ×.10 −9 .M,.10.min)

Model.solns. Pt-particles,.20.nm.characterized.by.

SEM.and.XRF;.LOD.lowered.by.
the.effect.of.some.surfactants

[968]

Cu 2+ s-CPE/C/Wx.

(AMTZ-S)

CV,.DPASV o.c..accum..via.complex.

el..redn./anodic.reoxidn.

8.×.10 −8 -3.×.10 −6 .M.
(3 ×.10 −8 .M,.20.min)

Commercial.
ethanol.fuel

Solid-like.CPE.ctng..parafin.wax.
(stable.in.EtOH);.AMTZ-S:.
amino-thiazole-functionalized.silica

[1830]