A5047187655- Analytical chemistry methods development
- Analytical Chemistry and Chromatography
- Advanced Chemical Sensor Technologies
- Mass Spectrometry Techniques and Applications
- Isotope Analysis in Ecology
- Groundwater and Isotope Geochemistry
- Toxic Organic Pollutants Impact
- Water Treatment and Disinfection
- Water Quality Monitoring and Analysis
- Chemical Analysis and Environmental Impact
- Geophysical Methods and Applications
- Environmental Chemistry and Analysis
- NMR spectroscopy and applications
- Arsenic contamination and mitigation
- Geophysical and Geoelectrical Methods
- Environmental remediation with nanomaterials
- Radioactive contamination and transfer
- Advanced oxidation water treatment
Chinese Academy of Geological Sciences
2008-2024
Ministry of Water Resources of the People's Republic of China
2024
Ministry of Natural Resources
2021-2024
Institute of Hydroecology
2014-2021
China University of Geosciences (Beijing)
2014-2016
Due to the complex intersection and control of multiple structural systems, hydrogeological conditions Laiyuan Basin in China are complex. The depth research on relationship between geological structure groundwater migration needs be improved. supply each aquifer is still uncertain. This paper systematically conducts characteristics hydrogen oxygen isotopes, combines magnetotelluric impedance tensor decomposition two-dimensional fine inversion technology carry out exploration strata...
Trichloropropane (TCP) is a chlorinated solvent which derives from chemical manufacturing as precursor, and it also an important constituent of formulations in cleaning/degreasing operations. The control remediation TCP polluted sites challenge for many conventional techniques due to its refractory behaviour. This mind, some nano-materials oxidants were tested evaluate their effectiveness degradation laboratory setting. Experimental results indicate that the use nanoscale zero-valent iron...
A novel approach to chlorine isotope analysis is presented overcome many drawbacks of existing methods. Contemporary methods often require several laborious off-line procedures prior instrumental determination; interfering ions (SO42- and NO3-) in real samples are difficult completely remove, especially when the concentrations those equal that Cl- ion. This study was aimed develop an automatic sample preparation method with chromatographic purity for determination isotopes using isotopic...
Compound-specific stable chlorine isotope analysis (CSIA-Cl) is an important method for identifying sources of organochlorine contaminants and helping assess their quantification transformation processes. However, the present CSIA-Cl challenged by either redundant conversion pretreatment or complicated mathematical correction. To overcome mentioned problems, a novel has been developed eight pesticides using gas chromatography-negative chemical ionization mass spectrometry (GC-NCI-qMS) in...
A novel approach to compound-specific stable chlorine isotope analysis is presented overcome many of the major drawbacks existing methods. Contemporary methods often require either several laborious off-line procedures prior or complicated mathematical data calculations and evaluation schemes derive ratios from mass spectra. In contrast previous methods, our on-line setup was based on use gas chromatography-negative chemical ionization spectrometry. The ion traces 35Cl−(m/z 35) 37Cl−(m/z 37)...
A method is developed for detection of polycyclic aromatic hydrocarbons (PAHs) and Phthalic Acid Esters (PAEs) in soil samples. Ultrasonic Wave Extraction under airtight circumstances adopted to extract the analytes samples with n-hexane–acetone (V:V=1:1) as extraction solvent. This has several advantages, including high efficiency, short time, convenience simplicity. It can be used detect soil.
A simple low-cost ultrasonic extraction procedure has been developed for determination of polar aromatic acids, phenols and nonpolar pesticides simultaneously in soil.This was accomplished by situ derivatization as well elevated temperature, increased power dispersing intimate contact solvent with samples.Combined GC/NCI/MS method, the sensitivity improved remarkably because enhanced electronegativity derivatized products herbicide intrinsic organochlorine.The method presented here showed...
An effective novel ultrasonic extraction procedure coupled with gas chromatography and negative chemical ionization mass spectroscopy has been developed for quantitative recovery of polar herbicides in soil. This rapid one-step sample preparation methodology was named accelerated (AUE), is based on elevated temperatures, increased power dispersing intimate contact. Simultaneously, in-situ derivatization achieved by the addition reagent, chelating agent agent. The efficiency enhanced multiple...
Many non-traditional isotopes, such as chlorine, magnesium, calcium, etc., are widely used groundwater tracers. A new sample processing protocol of purification and concentration for isotopic analysis is presented to overcome many the major drawbacks existing methods. Contemporary preparation often requires several laborious off-line procedures in a ultra clean laboratory prior instrumental determination; additionally, interference ions real samples difficult completely remove, especially...