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Article
In situ fabrication of covalent organic frameworks on solid-phase microextraction probes coupled with electrospray ionization mass spectrometry for enrichment and determination of androgens in biosamples
Solid-phase microextraction (SPME) coupled with electrospray ionization mass spectrometry (ESI-MS) was developed for rapid and sensitive determination of endogenous androgens. The SPME probe is coated with cov...
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Article
Facile synthesis of hollow microtubular COF as enrichment probe for quantitative detection of ultratrace quinones in mice plasma with APGC-MS/MS
A hollow microtubular covalent organic framework (denoted as TatDha-COF) was synthesized by solvothermal method for the enrichment and determination of quinones. The TatDha-COF showed large specific surface ar...
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Article
MIL-101(Fe)-derived magnetic porous carbon as sorbent for stir bar sorptive-dispersive microextraction of sulfonamides
Using MIL-101(Fe) as the source of carbon and Fe, a magnetic porous carbon (MPC) material with Fe3C nanoparticles encapsulated in porous carbon was prepared through one-pot pyrolysis under N2 atmosphere. With MPC...
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Article
Facile fabrication of magnetic covalent organic frameworks and their application in selective enrichment of polychlorinated naphthalenes from fine particulate matter
Magnetic covalent organic frameworks (Fe3O4@TPPCl4) were synthesized via a one-pot process in which magnetic nanoparticles (Fe3O4@MNP) served as a magnetic core and 2,4,6-trihydroxy-1,3,5-benzenetricarbaldehyde (...
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Article
High-throughput screening of bisphenols using magnetic covalent organic frameworks as a SELDI-TOF-MS probe
Core-shell structured magnetic covalent organic framework (Fe3O4@COF) nanospheres were rapidly synthesized at room temperature using the monodisperse Fe3O4 nanoparticles (NPs) as magnetic core and benzene-1,3,5-t...
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Chapter and Conference Paper
Electrochemical Behavior of Fe2O3 in Electro-Deoxygenation in NaCl–CaCl2 Molten Salt System
In the NaCl–CaCl2 , a solid agglomerate of particles is used as a raw material, and a graphite rod is used as an . At 800 °C, the composition and of the product obtained by and combined with constant ce...
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Article
Core-shell hollow spheres of type C@MoS2 for use in surface-assisted laser desorption/ionization time of flight mass spectrometry of small molecules
Mesoporous carbon hollow spheres coated with MoS2 (C@MoS2) were synthesized to obtain a material with large specific surface area, fast electron transfer efficiency and good water dispersibility. The composite ma...
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Article
Performance of atmospheric pressure gas chromatography-tandem mass spectrometry for the analysis of organochlorine pesticides in human serum
A novel method of atmospheric pressure gas chromatography-tandem mass spectrometry (APGC-MS/MS) for the analysis of organochlorine pesticides (OCPs) in human serum was developed. Better sensitivity and selecti...
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Article
Mesoporous graphitic carbon nitride as an efficient sorbent for extraction of sulfonamides prior to HPLC analysis
Mesoporous graphitic carbon nitride (MCN) is shown to be a viable sorbent for the enrichment of sulfonamides (SAs). To overcome the difficulty of separating the sorbent from the matrix, a novel type kind of co...
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Article
MS-Based Metabolomics for the Investigation of Neuro-Metabolic Changes Associated with BDE-47 Exposure in C57BL/6 Mice
Polybrominated diphenyl ethers (PBDE), as one kind of the major persistent organic pollutants (POP), have potential adverse effects on human health. 2,2′,4,4′-tetrabromodiphenyl ether (BDE-47) has been identif...
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Article
Polyglutamic acid based polyanionic shielding system for polycationic gene carriers
For the purpose of increasing the in vivo stability of polycation gene carriers, we prepared a kind of pH-sensitive poly(ethylene glycol)-poly (γ-benzyl-L-glutamate-co-glutamic acid) (PEG-PGA(65), 65 denotes the ...
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Article
Effect of annealing on the microwave-absorption properties of Ni/Al2O3 nanocomposites
Ni/Al2O3 nanocomposites were prepared by the mechanochemical synthesis method. The annealing process enlarges the grain size of both the metal Ni and insulating Al2O3 in the as-milled nanocomposite and leads to a...
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Article
Hippocampal metabolomics using ultrahigh-resolution mass spectrometry reveals neuroinflammation from Alzheimer’s disease in CRND8 mice
In the wake of genomics, metabolomics characterizes the small molecular metabolites revealing the phenotypes induced by gene mutants. To address the metabolic signatures in the hippocampus of the amyloid-beta ...
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Article
Newborn screening of phenylketonuria using direct analysis in real time (DART) mass spectrometry
Phenylketonuria (PKU) is commonly included in the newborn screening panel of most countries, with various techniques being used for quantification of l-phenylalanine (Phe). To diagnose PKU as early as possible in...
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Article
Proteomics investigation on aristolochic acid nephropathy: a case study on rat kidney tissues
Prolonged intake of aristolochic acid (AA) has been shown to be associated with the development of certain renal disorders. Renal tubular atrophy and interstitial fibrosis are the early symptoms of AA nephropa...
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Article
Electrochemical Behavior of Silicon in the (NaCl-KCl-NaF-SiO2) Molten Salt
The electrochemical behavior of silicon was investigated in a molten salts system including saturation silicon dioxide. Silicon was electrodeposited and MoSi2 was formed on the employed molybdenum working electro...
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Article
Site-specific binding of chelerythrine and sanguinarine to single pyrimidine bulges in hairpin DNA
Spectrofluorometric titration, electrospray ionization time-of-flight mass spectrometric and UV melting methods were employed to study the binding of chelerythrine and sanguinarine to bulged DNA. The results s...
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Article
Determination of five nitrobenzoic acids in groundwater by solid-phase extraction and liquid chromatography–mass spectrometry
A method involving solid-phase extraction (SPE) and reversed-phase liquid chromatography–mass spectrometry (LC–MS) has been developed for determination, in groundwater, of nitrobenzoic acids associated with 2,...
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Article
Determination of glucosinolates in traditional Chinese herbs by high-performance liquid chromatography and electrospray ionization mass spectrometry
A reversed-phase HPLC method has been developed for determination of twelve intact glucosinolates—glucoiberin, glucocheirolin, progoitrin, sinigrin, epiprogoitrin, glucoraphenin, sinalbin, gluconapin, glucosib...
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Article
Analysis of dinitro- and amino-nitro-toluenesulfonic acids in groundwater by solid-phase extraction and liquid chromatography–mass spectrometry
A reversed-phase LC–MS method with quadrupole-time of flight (QTOF) detection has been developed for the determination of four dinitro-toluenesulfonic acids and two amino-nitro-toluenesulfonic acids in groundw...