The Experts below are selected from a list of 216 Experts worldwide ranked by ideXlab platform
Yibin Ying - One of the best experts on this subject based on the ideXlab platform.
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applicatIon of electrochemically reduced graphene oxide on screen printed Ion Selective Electrode
Analytical Chemistry, 2012Co-Authors: Jianfeng Ping, Yixian Wang, Yibin YingAbstract:In this study, a novel disposable all-solid-state Ion-Selective Electrode using graphene as the Ion-to-electron transducer was developed. The graphene film was prepared on screen-printed Electrode directly from the graphene oxide dispersIon by a one-step ElectrodepositIon technique. Cyclic voltammetry and electrochemical impedance spectroscopy were employed to demonstrate the large double layer capacitance and fast charge transfer of the graphene film modified Electrode. On the basis of these excellent properties, an all-solid-state calcium Ion-Selective Electrode as the model was constructed using the calcium Ion-Selective membrane and graphene film modified Electrode. The mechanism about the graphene promoting the Ion-to-electron transformatIon was investigated in detail. The disposable Electrode exhibited a Nernstian slope (29.1 mV/decade), low detectIon limit (10–5.8 M), and fast response time (less than 10 s). With the high hydrophobic character of graphene materials, no water film was formed between...
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development of an all solid state potassium Ion Selective Electrode using graphene as the solid contact transducer
Electrochemistry Communications, 2011Co-Authors: Jianfeng Ping, Yixian Wang, Jian Wu, Yibin YingAbstract:Abstract A novel all-solid-state potassium Ion-Selective Electrode using graphene as the solid-contact layer was developed. Electrochemical impedance spectroscopy and reversed chronopotentiometry were employed to characterize the Ion-to-electron transducing ability of graphene. The new Electrode exhibited a Nernstian response of 58.4 mV/decade and a low detectIon limit of 10 − 6.2 M. Potentiometric water layer test showed no water film formed between the solid-contact layer and the polymeric membrane. Furthermore, the developed Electrode exhibited fast response, insensitive to oxygen and light, and excellent potential stability, which make it very promising for routine analysis and applicatIon.
Erol Ayranci - One of the best experts on this subject based on the ideXlab platform.
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Binding of Lead Ion to Bovine Serum Albumin Studied by Ion Selective Electrode
Protein and peptide letters, 2004Co-Authors: Erol Ayranci, Osman DumanAbstract:The binding of Pb2+ to bovine serum albumin (BSA) at neutral pH was studied using lead Ion Selective Electrode. The binding data was treated according to Scatchard EquatIon. The number of binding classes and the number of binding sites, intrinsic dissociatIon constants and stepwise binding constants for each class were determined. Two binding classes were found. Four binding sites in the first class and five binding sites in the second class were determined. Binding in the first class was stronger than in the second. Similar binding studies were carried out with heat treated BSA. It was found that not only the number of binding sites but also the strength of binding increases upon heat treatment.
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Binding of iodide to bovine serum albumin and protamine studied with an Ion-Selective Electrode
Food Chemistry, 2000Co-Authors: Erol AyranciAbstract:Abstract Binding of iodide Ion to bovine serum albumin and protamine was studied using an iodide Ion-Selective Electrode. Binding was found to be significant with bovine serum albumin but insignificant with protamine. The data for the iodide-bovine serum albumin system were treated according to the Klotz equatIon and the fit was found to be quite good. Number of iodide Ions bound per bovine serum albumin molecule was calculated as one and the equilibrium constant for this binding was determined to be 5.3 × 103. Insignificant binding to protamine and single binding to each bovine serum albumin molecule were explained in terms of the amino acid compositIons and secondary structures of these proteins.
Da-feng Xu - One of the best experts on this subject based on the ideXlab platform.
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Studies of the chlorpheniramine solid-state Ion-Selective Electrode
Talanta, 1996Co-Authors: Chao-lun Huang, Da-feng XuAbstract:An Ag/AgCl solid-state Electrode was prepared by using urea-formaldehyde resin as the frame material and KCl powder as the active material. Using the prepared Ag/AgCl solid-state Electrode as substrate and chlorpheniramine tetraphenylborate Ion-pair complex as the active component, a new type of solid-state chlorpheniramine Ion-Selective Electrode was constructed. The properties of the Electrode were studied in detail. The Electrode shows a rather good stability and can be used in the potentiometric determinatIon of chlorpheniramine.
Jianfeng Ping - One of the best experts on this subject based on the ideXlab platform.
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applicatIon of electrochemically reduced graphene oxide on screen printed Ion Selective Electrode
Analytical Chemistry, 2012Co-Authors: Jianfeng Ping, Yixian Wang, Yibin YingAbstract:In this study, a novel disposable all-solid-state Ion-Selective Electrode using graphene as the Ion-to-electron transducer was developed. The graphene film was prepared on screen-printed Electrode directly from the graphene oxide dispersIon by a one-step ElectrodepositIon technique. Cyclic voltammetry and electrochemical impedance spectroscopy were employed to demonstrate the large double layer capacitance and fast charge transfer of the graphene film modified Electrode. On the basis of these excellent properties, an all-solid-state calcium Ion-Selective Electrode as the model was constructed using the calcium Ion-Selective membrane and graphene film modified Electrode. The mechanism about the graphene promoting the Ion-to-electron transformatIon was investigated in detail. The disposable Electrode exhibited a Nernstian slope (29.1 mV/decade), low detectIon limit (10–5.8 M), and fast response time (less than 10 s). With the high hydrophobic character of graphene materials, no water film was formed between...
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development of an all solid state potassium Ion Selective Electrode using graphene as the solid contact transducer
Electrochemistry Communications, 2011Co-Authors: Jianfeng Ping, Yixian Wang, Jian Wu, Yibin YingAbstract:Abstract A novel all-solid-state potassium Ion-Selective Electrode using graphene as the solid-contact layer was developed. Electrochemical impedance spectroscopy and reversed chronopotentiometry were employed to characterize the Ion-to-electron transducing ability of graphene. The new Electrode exhibited a Nernstian response of 58.4 mV/decade and a low detectIon limit of 10 − 6.2 M. Potentiometric water layer test showed no water film formed between the solid-contact layer and the polymeric membrane. Furthermore, the developed Electrode exhibited fast response, insensitive to oxygen and light, and excellent potential stability, which make it very promising for routine analysis and applicatIon.
Pengcheng Liu - One of the best experts on this subject based on the ideXlab platform.
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an all solid state no3 Ion Selective Electrode with gold nanoparticles solid contact layer and molecularly imprinted polymer membrane
PLOS ONE, 2020Co-Authors: Lei Zhang, Zhengying Wei, Pengcheng LiuAbstract:To improve the single-layer all-solid-state Ion Selective Electrode' defects including poor conductivity of PVC sensitive membrane and interference of water layer between substrate Electrode and sensitive membrane, a double-layer all-solid-state Ion Selective Electrode with nanomaterial as the solid contact layer and conductive polymer as the Ion sensitive membrane was developed. A gold nanoparticles solid contact layer and a nitrate-doped polypyrrole molecularly imprinted polymer membrane were prepared by ElectrodepositIon. The optimal parameters obtained by electrochemical performance test were 2.5 mmol/L HAuCl4 electrolyte for solid contact layer and 1800s ElectrodepositIon time for sensitive membrane. The new Electrode exhibited a Nernstian response of -50.4 mV/decade and a low detectIon limit of 5.25×10-5mol/L. Potentiometric water layer test showed no water film formed between the gold nanoparticles solid contact layer and nitrate-doped polypyrrole molecularly imprinted polymer membrane. The contact angle between droplet and the surface of solid contact layer was 112.35° and showed good hydrophobic property. Furthermore, the developed Electrode exhibited fast response, excellent potential stability and long lifetime. This Electrode is suitable for the detectIon of nitrate concentratIon in water and liquid fertilizer.
