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Abstract:
Poly(glutamic acid) (P-GLU)/carboxyl functionalized multiwalled carbon nanotubes (MWCNTs-COOH)/polyvinyl alcohol (PVA) modified glassy carbon electrode (GCE) has been successfully prepared and the electrochemical behavior of procaterol hydrochloride (ProH) was studied. The results show that the as-prepared modified electrode exhibits a good electrocatalytic property towards the oxidation of ProH in 0.2 M phosphate buffer solution (PBS) (pH 6.0) due to the enhanced oxidation peak current at ~+0.59 V. Under optimal reaction conditions, the oxidation peak current of ProH is proportional to its concentration in the linear dynamic ranges of 0.060 − 8.0 μM (R = 0.9974), with a detection limit of 8.0 × 10−9 M. Finally, this method was efficiently used for the determination of ProH in tablets and human urine with recoveries of 88.5~98.7% and 89.2 ~ 108.0%, respectively. © 2017 Elsevier B.V.
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Talanta
ISSN: 0039-9140
Year: 2017
Volume: 174
Page: 436-443
4 . 2 4 4
JCR@2017
5 . 6 0 0
JCR@2023
ESI HC Threshold:226
JCR Journal Grade:1
CAS Journal Grade:2
Cited Count:
SCOPUS Cited Count: 15
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
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30 Days PV: 0
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