Electroanalysis with Carbon Paste–Based Electrodes, Sensors, and Detectors - Electroanalysis with Carbon Paste Electrodes - page 285

Hydroxy-1,2-
Naphthoquinones

3.NQ-isomers.[C 10 H 6 O 3 ] C/PO.(unm.) DPV NQs:.lawsone,.juglone,.and.plumbagin;.

CPE.used.only.in.comparative.studies

Model.solns. [2419]

Acrylamide.(acrylic-acid.
amide)

AcA.[C 3 H 5 ON] C/PO.[+Hb.(attached)] CV,.DPV Interaction.of.AcA.with.modif.,.detn..

via.redn..Hb-Fe III /Hb-Fe II .(decrease);.
LOD:.1.2.×.10 −10 .M;.AcA:.carcinogen

Foods.(potato.
chips.extracts)

[2420]

3,4-Dihydroxy-.benzoic.
acid

DBA.[C 7 H 6 O 4 ] CILE.(+poly-MBF) CV,.EIS modif.:. Methylene blue -ilm.obtained.

by.electropolymerization;.el.-catalytic.
effect;.linear.range:.5.×.10 −4 -0.003.M

Model.solns. [501]

Other O-compounds (e.g.,: −CH = O; −O−COOR; −O−O−)
Formaldehyde

C/PO.(+Ni II - p -MeAF) CV,.CA modif.:. in situ .electropolymerized.ilm.

of. N -methylaniline.funct..with.N iII ;.
cat..oxidn..and.r..kinetics.studied.
( k R ,. α ,. D X )

Model.solns. [130]

[HCH = O]

Aliphatic.and.aromatic.
aldehydes

C/PO.(+AN,.AmBA,.or.
PCF-AmPy)

CV,.DPV modifs.:.aniline,.4-aminobenzoic.acid,.

[Fe(CN)5(4-aminopyridine)],.elchem..
detn..via.imine.formed;.sub-mM.level

Model.solns. [1021]

R-CH = O,.Ar-CH = O

Aliphatic.and.aromatic.
aldehydes

C/Nj.(+Pd-powder) CV,.LSV Electrodeposited.Pd.acts.as.el..catalyst;.

detn..via.cathodic.redn..and.
desorption.lin.r.:.μM-mM;.mech..
regnt..of.CPE

Model.solns..(of.
HCHO)

[1268]

R-CH = O,.Ar-CH = O

Vanillin Subst..benzaldehyde.

[C 8 H 8 O 3 ]

C/DPhE.(unm.),.C/Nj.
(unm.)

CV,.Ad/ExSV Binder:.diphenyl.ether;.s.e.:.BR-B.(pH.5).

(in.50%.PrOH);.lin.r.:.0.6-4.mM

Biscuits,.canned.
custard.powder

[233]

Coumarins,.
Furocoumarins

Hetero-compds..
(1-benzopyran-2-ones.
ders.)

C/PO.(unm.) CV,.Ad/ExSV Study.on.oxidn.,.also.using.CFi-uμE*,.

BR-B.(pH.2-12),.ive.diff..ders.;.
LODs:.0.05-0.20.mg.L −1

Essential.oil.
(from.citrus)

[2421]

Aliphatic.peroxides BuP,.BuHP,.CmP.

[R-O-O-R]

C/PO.(+CoPC).[ft-D] (a).AD-FIA

(b).AD-HPLC

Cm:.cumene,.HP:.hydroperoxide,.
Co II -phthalocyanine.catalyzes.the.
oxidn..of.R 2 (H)O 2 ;.(b).lin..r.:.
1-100.pmol.L −1

(a).Drinking.
water
(b).Model.solns.

(a).[894]
(b).[896]

Benzoyl.peroxide BPO.(C 6 H 5 CO) 2 O 2 C/PO.(+coconut.ibers) HA,.AD modif.:.source.of.peroxidase.enzymes;.

s.e.:.0.1.M.PhB.(pH.5),.redn..with.
E P =.0.V.vs..ref.;.lin:.5-55.μmol.L −1 ;.
t R .<.5.s

Facial.creams,.
dermatol..
shampoos

[282]

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