A5092368757- Toxic Organic Pollutants Impact
- Analytical Chemistry and Chromatography
- Analytical chemistry methods development
- Heavy metals in environment
- Pesticide Residue Analysis and Safety
- Mercury impact and mitigation studies
- Effects and risks of endocrine disrupting chemicals
- Pharmaceutical and Antibiotic Environmental Impacts
- Engine and Fuel Emissions
- Ocean Acidification Effects and Responses
- Mass Spectrometry Techniques and Applications
- Environmental remediation with nanomaterials
- Environmental Justice and Health Disparities
Vietnam Academy of Science and Technology
2023-2025
Background: Although smoking has historically been one of the most prevalent methods for food preservation, it was considered a source carcinogenic and mutagenic persistent organic pollutants (POPs), such as polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), dibenzo-p-dioxins dibenzofurans (PCDD/Fs) due to incompletely combustion process. In this study, POPs in pork samples smoked with different materials: sawdust only (NP group), polyethylene (PE polystyrene (PS...
This study introduced mass spectrometry (MS)-based method for analysis of 118 pesticides after applying solid phase extraction (SPE) 26 water samples collected in Red River, Northern Vietnam. The excellent limit quantitation the developed ranged from 0.0005 to 0.015 µg L-1. Intra- and inter-day repeatability was achieved below 15%. Specific procedure liquid chromatography Orbitrap (LC-Orbitrap MS)-based analytical target compounds identified by retention time, precursor ion, product ions,...
In this work, three groups of halogenated organic pollutants (HOPs) including polybrominated diphenyl ethers (PBDEs), polychlorinated biphenyls (PCBs) and organochlorine compounds (OCPs) were analysed simultaneously in twenty-six fish species from coastal waters along the North Central Vietnam. Samples randomly collected, dry-free freeze for pre-treatment, extracted by accelerated solvent extraction combined with cleaning up on multi-layers silica gel column before analysing GC-MS/MS system....
ABSTRACTThis study developed a simple, economical and time-saving clean-up procedure based on an in-house packed column system for the determination of most toxic-relevant 17 PCDD (polychlorinated dibenzo-p-dioxin) PCDF dibenzofuran) congeners in environmental samples following accelerated solvent extraction. The extract solution was cleaned up using manually consisting multi-layer silica gel activated carbon column. After clean-up, dioxins furans were analysed by gas chromatography...
ABSTRACTOrganochlorine pesticides (OCPs), persistent organic pollutants, in the contaminated soil have been analysed by a gas chromatography-tandem mass spectrometry (MS) this work. OCPs were extracted with mixture of dichloromethane and n-hexane using accelerated solvent extraction at elevated temperature high pressure. The extractant was concentrated rotary vacuum evaporator cleaned up silica gel solid phase extraction. then separated chromatography combination an electron impact...
Polychlorinated biphenyls (PCBs) are a typical group of persistent organic pollutants (POPs), which have been listed under Annex A (Elimination) and C (Unintentional production) the Stockholm Convention. In this study, gas chromatography tandem mass spectrometry method was developed applied to analyze concentrations 28 PCB congeners in some Vietnamese marine fish samples. PCBs samples were ultrasonically extracted with an acetone/n-hexane (1/1, v/v) mixture. The extracts cleaned up by using...