A5048951385- Toxic Organic Pollutants Impact
- Biosensors and Analytical Detection
- Analytical Chemistry and Chromatography
- Vibrio bacteria research studies
- Identification and Quantification in Food
- Phytochemicals and Antioxidant Activities
- Aquaculture disease management and microbiota
- Environmental Toxicology and Ecotoxicology
- Analytical chemistry methods development
- Advanced Chemical Sensor Technologies
- Bacteriophages and microbial interactions
- Alkaloids: synthesis and pharmacology
- Pharmacogenetics and Drug Metabolism
- Virus-based gene therapy research
- Advanced biosensing and bioanalysis techniques
- Pesticide Residue Analysis and Safety
- Biochemical Analysis and Sensing Techniques
- Effects and risks of endocrine disrupting chemicals
- Edible Oils Quality and Analysis
- Neuroscience and Neuropharmacology Research
- Dye analysis and toxicity
- Garlic and Onion Studies
- Pharmacological Effects and Assays
- Poisoning and overdose treatments
- Civil and Geotechnical Engineering Research
Ministry of Agriculture and Rural Affairs
2017-2023
Chinese Academy of Fishery Sciences
2017-2023
Shanghai Ocean University
2021-2023
Inner Mongolia Agricultural University
2023
China National Center for Food Safety Risk Assessment
2013
Chinese Center For Disease Control and Prevention
2010-2011
National Institute for Viral Disease Control and Prevention
2007-2010
Hubei University
2005-2009
Shenyang Jianzhu University
2005
A sensitive and reliable method was developed to determine methylene blue (MB) its metabolite residues, including azure (AZA), B (AZB), C (AZC) in aquatic products by HPLC–MS/MS. The samples were extracted acetonitrile cleaned up alumina-neutral (ALN) cartridges. analytes separated on a Sunfire C18 column (150 mm × 2.1 mm, 5 µm). validated according the European criteria of Commission Decision 2002/657/CE. Good linearity between 1–500 µg/L obtained with correlation coefficients (R2) greater...
Abstract Objectives Despite its important therapeutic value, the metabolism of palmatine is not yet clear. Our objective was to investigate in-vivo and in-vitro metabolism. Methods Liquid chromatography–tandem electrospray ionization mass spectrometry (LC-ESI/MSn) employed in this work. In-vivo samples, including faeces, urine plasma rats, were collected after oral administration (20 mg/kg) rats. In-vitro samples prepared by incubating with intestinal flora liver microsome respectively. All...
In this work, liquid chromatography-electrospray ionization tandem ion-trap mass spectrometry (LC-MS(n)) was used to investigate the in-vivo and in-vitro metabolism of tectoridin. After oral administration a single dose (100 mg kg(-1)) tectoridin healthy rats, faeces urine samples were collected for 0-48 h 0-24 h, respectively. Tectoridin also incubated with rat intestinal flora liver microsomes. Samples from studies purified using C(18) solid-phase extraction cartridge, then separated...
In vivo and in vitro metabolism of scopolamine is investigated using a highly specific sensitive liquid chromatography-mass spectrometry (LC-MSn) method. Feces, urine, plasma samples are collected individually after ingestion 55 mg/kg by healthy rats. Rat feces urine cleaned up liquid-liquid extraction solid-phase procedure (C18 cartridges), respectively. Methanol added to rat precipitate proteins. Scopolamine incubated with homogenized liver intestinal flora rats vitro, The metabolites the...
The growth of Vibrio parahaemolyticus (V. parahaemolyticus) in oysters during postharvest storage increases the possibility its infection humans. In this work, to investigate or survival profiles different media, pathogenic V. APW, Jinjiang oyster (JO, Crassostrea rivularis ) slurry, and live JO were studied under temperatures. All strain populations counted through our double-layer agar plate (DLAP) method. showed continuous 15, 25, 35°C, while a decline behavior was displayed 5°C. similar...
Lactuca indica L. cv. Mengzao (LIM), acknowledged as a pivotal "One Root of Medicine and Food", boasts dual applications in both culinary medicinal domains. This research delves into the influence various harvest periods (vegetative, budding, blossom, fruiting) on distinct parts (roots, stems, leaves, flowers, seeds) LIM, employing plant metabolomics to assess its chemical constituents. A total 66 constituents were identified with 11 components emerging potential markers for distinguish...
This study described the development of a multiresidue method based on gas chromatography (GC) for detection 7 indictor polychlorinated biphenyls (PCBs) and 13 organochlorine pesticide (OCPs) residues in sediment with electron capture detector (ECD). The samples were extracted by n-hexane/dichloromethane (1/1, v/v) ultrasonic extraction. extracts desulfurization copper powder purification concentrated sulfuric acid. was validated analysis spiked Tai lake sediment. Analytical performances...
The intensive aquaculture strategy and recirculating system often lead to the production of off-flavor compounds such as 2-methyl-isoborneol (2-MIB) Geosmin (GSM). regular purge trap extraction followed by analysis with gas chromatography-mass spectrometry (GC-MS) usually involve a complicated assembly facilities, more working space, long sample preparation time, headspace solid-phase microextraction (SPME). In this work, method easier preparation, fewer simplified without SPME on GC-MS is...
Lactuca indica L. contains high amounts of flavonoids and phenolic acids. However, there is limited information on the composition these compounds in different parts plant. The present study analyzed secondary metabolite profiles stem, leaf, flower, seed indicaL.cv. Mengzao (LIM) using a widely targeted metabolomic approach. A total 576 metabolites were identified, including 218, 267, 232, 286, 302, 308 differentially accumulated (DAMs) stem_vs_leaf, stem_vs_flower, stem_vs_seed,...
A method was developed for determination of 7 indictors the polychlorinated biphenyls (PCBs) residues in porphyra by gas chromatography (GC) with electron capture detector (ECD). The PCBs were extracted hexane/methylene chloride (1:1, v/v) ultrasonic extraction and samples cleaned up concentrated sulfuric acid Alumina-N solid phase cartridge. analytes quantified an internal standard method. Under optimal experimental conditions, good linearity observed range 5 - 200 ng/mL correlation...
A gas chromatography method was developed for the quantification and identification of cypermethrin, fenvalerate, deltamethrin residues in sediment with electron capture detector (ECD). Homogenized samples were extracted by N-hexane/dichloromethane (1/1), desulfurization copper powder. The cleaned up silica solid phase extraction (SPE) cartridge. There many isomers cypermethrin but proportions different concentrations, so it more accurate to quantify total quantity. analytes quantified...
An effective and efficient method for the determination of 18 β-agonists in aquatic products using liquid chromatography tandem mass spectrometry (LC-MS/MS) was successfully established. The optimization conducted based on incurred samples to guarantee its practicability. In this method, sample hydrolyzed with β-glucuronidase-arylsulfatase ammonium acetate solution treated successively protein precipitation 5% trichloroacetic acid water, lipid removal n-hexane, further concentration cleanup...
The modified polyethylene monofilament was prepared by melt blending and spinning using (PE), polypropylene-grafted poly(hexamethylene guanidine) (PP-g-PHMG), Cu nanoparticles (CuNPs). effect of CuNP content on the structure, mechanical properties, antimicrobial properties monofilaments studied. In addition, antifouling property fishing nets evaluated. results showed that CuNPs were dispersed homogeneously in matrix as microaggregates. initial increase tensile strength attributed to...
Polychlorinated biphenyls (PCBs), a group of persistent organic pollutants, are ubiquitous in the environment. The concentrations PCBs and their metabolites crucial to understand impact on Here, simultaneous method is reported determine PCB101 its hydroxylated, methoxylated methyl sulfonated aquatic organisms by gas chromatography–microelectron capture detection (GC-μECD). Several operational parameters, including extraction solvent, volume concentrated sulfuric acid for lipid removal,...
Abstract A rapid, sensitive, and specific liquid chromatographic‐electrospray ionization (ESI) tandem ion trap mass spectrometric method has been developed for identification of physostigmine its metabolites in rat urine. 300 µg kg–1 were used as a safe oral gavage dose studies on metabolites. 0–24 h urine was purified using C18 solid‐phase extraction cartridge, then detected by an on‐line MS detector. Identification structural elucidation the performed comparing their MSn spectra with...