Electroanalysis with Carbon Paste–Based Electrodes, Sensors, and Detectors - Electroanalysis with Carbon Paste Electrodes - page 227

Cu 2+ C/PO.(DPN-SG) POT.(dir.) Chemical.equilibrium.and.

steady-state.potential.for.
Cu 2+ .↔.Cu II −DPN

1.×.10 −7 -0.01.M.
(8 × 10 −8 .M,.50.s)

Wastewater DPN-SG:.dipyridyl.

group-functionalized.nanoporous.
silica.gel
Slope:.Nenstian,.ca.28.5.mV/dec.

[1835]

Cu 2+ C/PO.

(Cu-SALHMN)

POT.(dir.,.titr.) Chemical.equilibrium.and.

steady-state.potential.for.
Cu 2+ .↔.Cu II −SALHMN

4.×.10 −7 -0.01.M.
(6 × 10 −8 .M,.12.s)

Tap.water,.
multi-vitamin.
tablets

SALHMN:. N , N ′-disalicylic-lene-
hexameythylenediaminate;.s.s.:.
buffer.(pH.4-6.5);.interfs..study

[2241]

Cu 2+ C/PO.(chitosan) ASV o.c..accum..via.adsorption.

+.el..redn.;.anodic.
reoxidn.

2.×.10 −7 -7.×.10 −6 .M.
(8 ×.10 −8 .M,.4.5.min)

Wastewater.
samples

modif..content.in.CP:.25%.(m/m);.
s.e.:.0.1.M.KNO 3 .(pH.6.5)

[2242]

Cu 2+ C/PO.( Zincon ) DPASV o.c..accum..via.compl..+.

sorption/anodic.reoxidn..
of.modif..(indirect.detn.)

2-220.μg.L −1 .(1.μg.L −1 ;.
5.min)

Natural.waters,.
human.hair

Zincon :.2-carboxy-2-hydroxy-.
5-sulfo.formazyl.benzene;.s.e.:.PhB.
(pH.6.4)

[2243]

Cu 2+ ,.Hg 2+ +.
Pb 2+

C/PO.(AMT/
plex-μS)

SWASV accum..via.complexation

el..redn..+.reoxidn.

3-50.μg.L −1 .(10.min).
(1.μg.L −1 ;.15.min)

Tap.water.
(spiked).
wastewater

AMT/plex-μS:.2-aminothiazole.in.
plexi-polymer.made.microspheres
Simultaneous.detn..with.Hg 2+ ,.Pb 2+

[1683]

Cu 2+ ,.Hg 2+ +.
Pb 2+

C/PO.( SBA-15 ) CV,.DPASV accum..via.sorption.and.

complex.;.redn..+.reoxidn.

8.×.10 −7 -1.×.10 −5 .M.
(2 ×.10 −7 .M;.3.min)

Natural.water;.
alcohol.drink.
(from.cane.
sugar)

SBA-15 :.nanostructured.silica.
functionalized.with.
2-benzothiazolethiol
Simultaneous.detn..with.Hg 2+ ,.Pb 2+

[2223]

Cu 2+ C/PO.(s.a..n-Au.+.

three.diff..
modifs)

POT.(dir.) Chemical.equilibrium.and.

steady-state.potential.for.
Cu 2+ .↔.Cu II -SA-nAu/M

8.×.10 −9 -0.001.M.(3-4.
×.10 −8 .M;.5.s)

Water.samples,.
human.hair

s.a.:.self-assembled. n -Au-particles
modifs.:.MMN-IT,.MNFT,.MNTT.
(SH−ctng..heterocyclic.derivatives)

[959]

Cu 2+ ,.Pb 2+ CNTPE.(+immob..

DNA)

CV,.SWV accum..via.the.Cu II /-SH.

afinity.(provided.by.DNA.
modif.);.cathodic.redn.

0.5-3.2.ng.L −1 .(0.4.ng.
L −1 ;.200.s)

Fish.tissue s.e.:.0.1.M.AmB.(pH.10);.RSD.<.0.1.%.

( n .=.15);.simultaneous.detn..of.Cu 2+ .
and.Pb 2+

[382]

Cu 2+ CNT-PE,.CNT(F)

PE

SWV,.CA.
( in vivo )

o.c..accum..via.compl..+.
sorption/anodic.reoxidn.

0.01-0.10.μg.L −1 .
(0.005.μg.L −1 )

Tap.water,.blood,.
rat.tail

CNT(F):.luorinated.carbon.
nano-tubes;.electrode.lifetime.in.
appl.. in vivo ,. t iv .>.1.month

[396]

( continued )