Chemistry Reference
In-Depth Information
TABLE 8.22
Analysis of Biologically Important Compounds at Carbon Paste Electrodes: Neurotransmitters and Related Compounds
Analyte
Modiier
Carbon Paste
Techniques
Comments
Ref(s)
Direct.e
−
-
transfer.of.FADH
2
.to.TTF
Acetylcholine
Acetylcholine.esterase.+.choline.
oxidase.+.TTF
G/po
CV,.A.(0.2.V.vs..
SCE)
[1487]
Catecholamines
Dopamine
Epinephrine
Crude.extract.of.oyster.mushroom
G/Nj
DPV
Source.of.laccase,.catalytic.ox.,.det,.by.red..of.
quinones.as.sum;.LOD.7.9.(ad).or.9.8.μM.(da);.
PBS.0.1.M,.pH.7;.s:.pharmaceuticals
[2953]
Catecholamines
Adrenaline
l-Dopa
Dopamine
Isoprenaline
Laccase.(oyster.mushroom).+.
peroxidase.(zucchini)
G/po
DPV
Synergistic.ox.,.det..by.red..of.quinones;.PBS.
0.1.M,.pH.6,.LOD.24-27.nM
[2954]
l-Dopa
Tyrosine
l-Dopa
Me-dopa
Unmodiied
(Ionic.surfactants)
CPE,.rotating.CPE
CV,.DPV
ca.1.N.H
2
SO
4
;.ox
ox..to.quinone;.s:.pharmaceuticals
[2743,2744]
[738]
l-Dopa
Dy-nanowires
G/po
acc..(−0.2.V.vs..SSE,.
30.s),.FFT.SWV
Catalytic.ox.;.ABS,.pH.7;.LOD.4.nM;.s:.urine,.
plasma
[1882]
l-Dopa
Benserazide
Chloranil
G/p.liquid
CV,.DPV
Catalytic.ox.;.KCl.0.1.M,.LOD.0.95.μM.(do).and.
0.65.μM.(be);.pH.10;.s:.urine
[2955]
l-Dopa
Carbidopa
PbO
2
.in.polyester
C/p.solid
CV,.DPV
Perchloric.acid,.0.1.M;.LOD.25.μM.(do).and.
3.μM.(ca);.s:.pharmaceuticals
[1241]
l-Dopa
Fc.+.MWCNT
G/po
CV,.CA.(0.45.V.vs..
SSE),.DPV
Catalytic.ox.;.PBS,.0.1.M,.pH.7;.LOD.1.2.μM;.
s: urine
[420]
l-Dopa
Ru-red.on.Na.zeolite.Y.
[(NH
3
)
5
Ru
III
-O-Ru
IV
(NH
3
)
4.
-O-Ru
III
(NH
3
)
5
]
6+
G/mo
CV
Catalytic.ox..to.dopaquinone,.det..via.reox..of.
Ru-complex;.ABS.0.1.M,.pH.4.8,.LOD.85.μM;.
s:.pharmaceuticals
[1126]
Dopa-melanins.prepared.
by.enzymatic.ox..of.
dopa
G/KCl.0.1.M,.pH.5.6
Eumelanins.in.paste,.electrochem..
characterization;.KCl,.pH.5.6
[2956]
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