A5074138937- Electrochemical Analysis and Applications
- Advanced Chemical Sensor Technologies
- Electrochemical sensors and biosensors
- Analytical chemistry methods development
- Advanced Nanomaterials in Catalysis
- Pesticide Residue Analysis and Safety
- Analytical Chemistry and Sensors
- Advanced biosensing and bioanalysis techniques
- Spectroscopy and Chemometric Analyses
- Metal-Organic Frameworks: Synthesis and Applications
- Biosensors and Analytical Detection
- Analytical Chemistry and Chromatography
- Conducting polymers and applications
- Insect and Pesticide Research
- Identification and Quantification in Food
- Smoking Behavior and Cessation
- Pharmacological Effects and Assays
- Plant Virus Research Studies
- Molecular Sensors and Ion Detection
- Bacteriophages and microbial interactions
- Mycotoxins in Agriculture and Food
- Synthesis and Biological Evaluation
- Covalent Organic Framework Applications
- Genetics and Plant Breeding
- Plant and Fungal Interactions Research
China Tobacco
2021-2025
Guangdong Testing Institute for Product Quality Supervision
2023
Yunnan University
2014-2018
Culture Resource
2014
Kunming University
2014
In this study, cetyltrimethylammonium bromide and zeolitic imidazolate framework-8 (ZIF-8) were first assembled via the chemical co-precipitation, high-quality carbon-based metal-free nanomaterials synthesized using a heat-treatment process. The internal morphological characteristics of hexagonal Star ZIF-8 investigated scanning electron microscopy, X-ray diffraction, photoelectron spectroscopy. electrochemical sensor with good response to Cd(II) was prepared square-wave anodic stripping...
A Tp-Bpy-COF@MWCNT-based electrochemical sensor has been developed for the ultrasensitive detection of lead ions, achieving an impressive low limit 0.0749 μg L −1 . Graphical abstract created, in part, with 3D Max and Materials Studio.
To elucidate the concentrations of heavy metal elements in commercially available electronic cigarettes and improve quality assessment. Inductively coupled plasma-mass spectrometry (ICP-MS) to chemometrics was used determine Cr, Ni, As, Cd, Sn, Sb, Hg, Pb e-liquids aerosols derived from 32 sold under six brand names. The contained: 4.858 274.658 (Cr), 17.292 3068.375 (Ni), 3.217 29.867 (As), 0.225 24.717 (Cd), 0.783 17.042 (Sn), 0.658 36.033 (Sb), 187.592 (Hg), 2.458 17.417 (Pb) ng·g−1....
In order to investigate the difference of volatile substances among flavored cigarette paper, which are supplied by several manufacturers with different batches, stability complex system scented paper was analyzed and evaluated. this study, Headspace-gas chromatography-ion mobility spectrometry (HS-GC-IMS) used detect aroma compounds 23 samples. Based on fingerprint analysis, differences changes samples were studied in form data visualization. Principal component partial least squares...
The rapid and onsite detection of glyphosate in tobacco products is still a great challenge. In this study, novel smartphone-assisted sensing platform for the has been successfully proposed through peroxidase-like activity Fe3O4-based nanozyme. Heptanoic acid/Prussian blue (PB) decorated Fe3O4 nanoparticles (Fe3O4@C7/PB) could catalyze oxidize 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS, colorless) into steel colored product presence hydrogen peroxide. Glyphosate...
To elucidate the concentrations of four tobacco-specific nitrosamines (TSNAs) in commercial e-cigarettes, analyze correlation between TSNAs and Nicotine, clarify main sources e-cigarettes. Ultra-high performance liquid chromatography with quadrupole time-of-flight high-resolution mass spectrometry (UPLC-QTOF-HRMS) was employed to determine thirty-two commercially available The results demonstrated that method exhibits excellent linearity high accuracy. limits quantification (LOQ)...
The establishment of a reliable and sensitive method for the detection flavonoids, such as kaempferol (Kae) quercetin (Que), is important challenging in food chemistry pharmacology because numerous structural analogues may interfere with detection. Until now, designing an efficient switch-on fluorescence sensing strategy Kae Que was still unachievable stage. In this work, near-infrared (NIR) luminescence assay fabricated based on metal-organic framework (MOF) called IQBA-Yb first time....
Three copper iodide coordination polymer (CuI-p-DPA) isomers were prepared from the fluorescent organic ligand p-DPA and cuprous (CuI) under different solvothermal conditions, which exhibited quenched fluorescence behaviors after forming polymers (CPs). These CuI-p-DPA showed discrepant responses to thiophanate-methyl (TM). Among these isomers, α-CuI-p-DPA maximum enhancement its incubation with TM in aqueous solution. The mechanism was that competed coordinate CuI clusters, then released...
An electrochemical sensor for podophyllotoxin (PPT) based on the molecular imprinting polymer (MIP) membranes was constructed. The prepared by electropolymerizing o-phenylenediamine (o-PD) a glassy carbon electrode (GCE) in presence of PPT as template, and then removing template immersing modified GCE ethanol. Experimental parameters such types monomer, scan cycles, concentration o-PD extraction condition were optimized. Under optimal conditions, exhibits good selectivity high sensitivity. A...
A rhodium (III) ion carbon paste electrode (CPE) based on an imprinted polymer (IIP) as a new modifying agent has been prepared and studied. Rh(III) was synthesized by copolymerization of acrylamide-Rh(III) complex ethylene glycol dimethacrylate according to the precipitation polymerization. Acrylamide acted both functional monomer complexing create selective coordination sites in cross-linked polymer. The (IIP-CPE) mixing IIP-nanoparticles graphite powder n-eicosane adhesive then embedding...
Spherical carbons have a porous structure and large surface area for adsorption of macromolecules in water-based adhesives. Supercritical fluid chromatography (SFC) can improve selectivity obtain better separation phthalate esters (PAEs).The aim this study was to develop simple green method the simultaneous determination 10 PAEs adhesives using SFC-tandem mass spectrometry with dispersion solid-phase extraction by spherical carbons.Separation on Viridis HSS C18 SB column parameters affecting...
This study used reversed‐phase liquid chromatography–tandem mass spectrometry and supercritical fluid for determination of the stereoisomers chlorfenvinphos dimethylvinphos in tobacco. Tobacco samples were extracted purified with a modified quick, easy, cheap, effective, rugged, safe technique using spherical carbon. The performance both methodologies was comprehensively compared terms methods validation parameters (separation efficiency, linearity, selectivity, recovery, repeatability,...
A novel ion imprinted electrode with high sensitivity and specific recognition to Pt(<sc>iv</sc>) was obtained by<italic>in situ</italic>polymerization.
Abstract The morphology of nanomaterials (geometric shape and dimension) play a significant role in its various physical chemical properties. Thus, it is essential to link with performance specific applications. For this purpose, the copper metal–organic polyhedra (Cu‐MOP) can be modulated through distinct assembly process, which facilitates exploration relationship between catalytic performance. In work, assemblies Cu‐MOP three different morphologies (nanorods, nanofibers nanosheets) were...
Compared with traditional cigarettes, heated cigarettes have higher advantages in tar reduction, harm environmental impact and safety. This article provides an overview of the structure tobacco products main chemical components their aerosols. It also elaborates on methods for detecting these Furthermore, it discusses potential issues offers suggestions quality control product research. The aim is to provide valuable insights references continued research development products.
An effective identification method for detecting illegal goods involving raw tobacco material is crucial monopolies to conduct surveillance. We developed Nicotiana-specific molecular markers determine whether seized contain material. The sequence data genes related the nicotine metabolism pathway and genomic from public Solanaceae database were used establish markers. These determined by experimentally verifying 17 types of nontobacco plant 91 belonging 11 sections 3 subgenera. Two reliable...