Chemistry Reference
In-Depth Information
TABLE 8.21
Analysis of Biologically Important Compounds at Carbon Paste-Based Electrodes: Hormones, Phytohormones, Steroids,
and Related Compounds
Analyte
Modiier
Carbon Paste
Techniques
Comments
Ref(s)
Hormones
Estradiol.valerate
Iron.tetrapyridino-porphyrazine
G/mo
CV,.A.(0.6.V.vs..
SSE)
Catalytic.ox.;.acetonitrile:.PBS.(0.1.M,.pH.7).47:53.(v:v);.
s: pharmaceuticals
[2931]
Estrogens
acc..(o.c.)
Enhancement.effect.of.CTAB;.LOD.0.8.nM.(acc..6.min)
[2932]
Estrogens
Estriol
G/Kel-F
AD.in.HPLC.
(0.95.V.vs..SSE)
Fluorinated.Kel-F.increases.stability.in.organic.solvents;.
acertonitrile/PBS.(0.025.M,.pH.3.2)
[66,318]
Estrogens
Estriol
Oleic.acid
acc.
LOD.0.4.μM;.s:.pharmaceuticals
[1674]
Ethinyl.estradiol
G/po
acc.,.CV,.LSV
ox.;.PBS.0.067.M,.pH.8.04;.LOD.30.nM.(acc..250.s);.
s: tablets
[1635]
Insulin
4-(3,5-Dichloro-2 -pyridylazo)-.
1,3-diaminobenzene
G/Nj
pot..titration
det..via.Zn.after.mineralization
[2933]
Insulin
Myoglobin
Preanodization
G/mo
acc.,.PSA
det..via.ox..of.tyrosine;.Na
2
CO
3
.0.5.M,.LOD.2.nM.
(5.min acc.)
[2934]
Insulin
RuO
x
.electrodeposited
G/mo.needle-type.
dual.microelectrode
FIA.(0.6.V.vs..SSE)
det..via.ox.;.dual.microelectrode.for.simultaneous.det..
of glucose;.PBS.0.05.M.+.NaCl.0.1.M,.pH.7.4
[612]
LH.releasing.
hormone
Bombesin
Neurotensin
Preanodization
G/mo
acc.,.PSA
det..via.ox..of.tyrosine.or.tryptophan;.LOD.0.2.nM.
(10.min acc.);.PBS.0.2.M,.pH.7
[630]
Melatonin
G/castor.oil
acc.
LOD.1.nM;.s:.serum
[236]
Melatonin
o.c..acc.,.me
s:.urine
[2935]
Melatonin
DPASV
Extractive.acc..(rather.than.adsorptive);.LOD.0.15.μg.L
−1
[2936]
Melatonin
LSV
HClO
4
.0.02.M;.LOD.2.3.μM;.s:.capsules
[2937]
Melatonin
Preanodization
G/po
CV,.DPV,.FIA
LOD.1.nM.(DPV);.HClO
4
.0.1.M;.s:.pharmaceuticals
[2938]
Melatonin
Preanodization
G/po
CV,.ACV;.acc..
(0.15.V.vs..SSE,.
2 or.5.or.10.min)
ox..prim..to.hydroquinone.(irrev.),.then.to.quinone.(rev.);.
HClO
4
,.0.1.M;.LOD.90.pM.(10.min.acc.)
[2939]
(
continued
)
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