A5035061521- Essential Oils and Antimicrobial Activity
- Analytical Chemistry and Chromatography
- Advanced Chemical Sensor Technologies
- Analytical chemistry methods development
- Phytochemicals and Antioxidant Activities
- Corrosion Behavior and Inhibition
- Natural product bioactivities and synthesis
- Dye analysis and toxicity
- Free Radicals and Antioxidants
- Analytical Chemistry and Sensors
- Phytochemistry and Biological Activities
- Railway Systems and Energy Efficiency
- Biochemical Analysis and Sensing Techniques
- Drug Solubulity and Delivery Systems
- Thermal Analysis in Power Transmission
- Concrete Corrosion and Durability
- Mesoporous Materials and Catalysis
- Spectroscopy and Chemometric Analyses
- Ginger and Zingiberaceae research
- Olfactory and Sensory Function Studies
- Electrochemical sensors and biosensors
- Genomics, phytochemicals, and oxidative stress
- Electrochemical Analysis and Applications
- Metabolomics and Mass Spectrometry Studies
- Fermentation and Sensory Analysis
China University of Petroleum, Beijing
2023-2024
Tianjin University of Commerce
2014-2023
Tianjin Medical University
2019-2023
Tianjin Tianhe Hospital
2019-2023
Osaka University
2023
Northwest A&F University
2020
University of Science and Technology Beijing
2012-2015
Murdoch University
2004
Chinese University of Hong Kong
2002-2003
Nankai University
1999-2000
Mesoporous TiO2 nanometer thin films were prepared on fused quartz by the dip-coating sol–gel method from a system containing triblock copolymer as template (or pore-forming agent), and then calcined at different temperatures. These characterized X-ray diffraction, atomic force microscopy, photoelectron spectroscopy, BET surface area UV-visible spectrophotometry. The photocatalytic activity photo-induced super-hydrophilicity of evaluated degradation acetone water contact angle measurement in...
High performance liquid chromatography coupled with tandem mass spectrometry electrospray ionization and negative ion detection (HPLC-ESI-MS/MS) was used to identify the polyphenols from leaves of a traditional vegetable spice, Zanthoxylum bungeanum Maxim., in China by comparison retention times spectral fragment standard substances or related literature. A phenolic acid glucoside, two acids, eight flavonoids were determined including vanillic acid-4-glucoside (22.75 μg/g, dry weight...
Abstract The essential oil of the seeds Cuminum cyminum L. from China was isolated by hydrodistillation in a yield 3.8%. chemical composition examined GC and GC–MS; 37 components, representing 97.97% oil, were identified. Cuminal (36.31%), cuminic alcohol (16.92%), γ ‐terpinene (11.14%), safranal (10.87%), p ‐cymene (9.85%) β ‐pinene (7.75%) major components. Copyright © 2004 John Wiley & Sons, Ltd.
Flavonoids are rich in Juglans regia L. leaves. They have potent antioxidant properties, which been related to regulating immune function and enhancing anticancer activity. Herein, qualitative quantitative determination of flavonoids from J. leaves was carried out using high performance liquid chromatography coupled with tandem mass spectrometry electrospray ionization negative ion detection (HPLC-ESI-MS/MS) by comparison the retention times spectral fragments standard substances or...
Porous titania microspheres with a very narrow particle size distribution (PSD) were synthesized by polymerization-induced colloid aggregation (PICA). After being sintered, the that are obtained have an average diameter of 3.5 microm, surface area 36.7 m2/g, pore volume 0.30 mL/g, and 32.2 nm. The possess enough rigidity to withstand high packing pressure useful as new kind chromatographic material for performance liquid chromatography (HPLC).
Abstract BACKGROUND Traditional chemical methods were mainly used to evaluate the total antioxidant activity of essential oils. How determine bioactivity each compound in mixtures is an interesting research topic. Nowadays, ultra‐fast gas chromatography electronic nose (E‐nose) has been gradually detection volatile compounds, but screening active components oils not reported. E‐nose coupled with methodology was established using oil from rosemary (EOR) as a specific application example. The...
In this work, corrosion behavior of carbon steel under the application alternating current (AC) was investigated in electrolyte solutions with five different pH levels, from near‐neutral to alkaline condition, through weight loss measurements, potential monitoring techniques, potentiodynamic polarization tests, electrochemical impedance spectroscopy (EIS) and surface examination. It is found that rate decreases increasing value toward end while increases AC density. When solution becomes...
Abstract BACKGROUND Polyphenols extracted from plants are usually highly unstable and rapidly transformed into various reaction products during food drug processing, thus limiting their applications. To improve the stability solubility of polyphenols leaves Chinese star anise ( Illicium verum Hook. f.), hence to expand application medicine, leaf (ALPs) were microencapsulated using β ‐cyclodextrin ‐CD) cyclodextrin‐based metal–organic frameworks ‐CD‐MOFs). RESULTS The optimum inclusion rate...
Abstract The antioxidant activity and free radical scavenging potential of Litsea cubeba essential oil (LCEO) were evaluated from different points view compared with citral, a major component in LCEO, ascorbic acid (Vc) synthetic antioxidants including butylated hydroxytoluene (BHT) propyl gallate (PG). results revealed that LCEO has notable activity. order hydroxyl was >BHT > citral PG >Vc. Their half maximal inhibitory concentration (IC50) values 0.19, 0.28, 0.50, 0.79 1.07 mg/mL,...