One-step electrodeposition of a molecularly imprinting chitosan/phenyltrimethoxysilane/AuNPs hybrid film and its application in the selective determination of p-nitrophenol

The Analyst ◽  
2013 ◽  
Vol 138 (9) ◽  
pp. 2761 ◽  
Author(s):  
Shanshan Li ◽  
Dan Du ◽  
Jing Huang ◽  
Haiyang Tu ◽  
Yuqi Yang ◽  
...  
Keyword(s):  
Hybrid Film ◽  
Molecularly Imprinting ◽  
Selective Determination ◽  
One Step

A poly(3,4-ethylenedioxythiophene)/carbon nanotube hybrid film for electrocatalytic determination of tertiary butylhydroquinone

The Analyst ◽  
2021 ◽  
Author(s):  
Cunli Wang ◽  
Fudan Zhu ◽  
Zhe Yu ◽  
Xian Zhou ◽  
Wenjing Cheng ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Electrochemical Sensor ◽  
Hybrid Film ◽  
Binding Mechanism ◽  
Tertiary Butylhydroquinone ◽  
One Step ◽  
Electrocatalytic Determination

A TBHQ electrochemical sensor was constructed by one-step electrodeposition of a PEDOT–CNT hybrid film. Additionally, the binding mechanism of PEDOT–CNT has also been discussed briefly.

A Ratiometric Fluorescent Probe Based on Carbon Dots and Bimetallic Nanoclusters for the Assay of Copper Gluconate and Copper Sulfate

NANO ◽  
2021 ◽  
pp. 2150114
Author(s):  
Yucong Fan ◽  
Weihua Yu ◽  
Yue Hu ◽  
Yunwen Liao ◽  
Xiaohui Jiang ◽  
...  
Keyword(s):  
Fluorescent Probe ◽  
Carbon Dots ◽  
Limit Of Detection ◽  
Molar Ratio ◽  
Cupric Sulfate ◽  
Selective Determination ◽  
Bimetallic Nanoclusters ◽  
One Step ◽  
The One

Doping Ag-enhanced and glutathione-stabilized Au nanoclusters (GSH–Ag/AuNCs) were prepared by the one-step ultraviolet radiation combined with microwave heating method. The effects of the molar ratio of Au–Ag and different types of energy suppliers on the fluorescent performance of GSH–Ag/AuNCs were studied in detail. After that, a new ratio fluorescent probe (RF-probe) based on the mixing of GSH–Ag/AuNCs with carbon dots (CDs) was designed for sensitive and selective determination of copper gluconate (CG) and cupric sulfate (CS). For the CDs–GSH–Ag/AuNCs RF-probe, the fluorescence (FL) of CDs (at 440[Formula: see text]nm) and that of alloy nanoclusters (NCs) (at 605[Formula: see text]nm) were, respectively, unaffected and strongly quenched in the presence of CG/CS at [Formula: see text][Formula: see text]nm coming from the dynamic quenching process. Corresponding linear ranges and limit of detection (LOD) of the RF-probe for the CG/CS assay were estimated to be 0.17–6.20/0.17–5.62[Formula: see text][Formula: see text]mol/L and 16.80/15.95[Formula: see text]nmol/L, respectively. Furthermore, the proposed RF-probe was successfully used for the assays of CG in CG tablets and CG additive, and CS in infant formula and CS additive, respectively.

Rapid and selective determination of melamine from eggs and milk based on magnetic surface molecularly imprinting technology

2017 ◽  
Vol 9 (48) ◽  
pp. 6839-6848 ◽  
Author(s):  
Li Wang ◽  
Fen Qiu ◽  
Jian Li ◽  
Jiarong Pan
Keyword(s):  
High Selectivity ◽  
Magnetic Surface ◽  
Molecularly Imprinting ◽  
Selective Determination ◽  
Rapid Extraction ◽  
Molecularly Imprinting Technology

Fe3O4@SiO2@MIPs, which have strong magnetic responsiveness and high selectivity, were synthesized and applied towards the rapid extraction of MEL from milk and eggs.

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