Author
Shifen Mou
Other affiliations: Academia Sinica
Bio: Shifen Mou is an academic researcher from Chinese Academy of Sciences. The author has contributed to research in topics: Ion chromatography & Column chromatography. The author has an hindex of 29, co-authored 72 publications receiving 2814 citations. Previous affiliations of Shifen Mou include Academia Sinica.
Papers
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TL;DR: This is the first time that a mixed hemimicelles SPE method based on magnetic separation and nanoparticles has been used for the pretreatment of environmental water samples and the advantages include high extraction yields, high breakthrough volumes, short analysis times, and easy preparation of sorbents.
Abstract: The research presented in this paper investigates the adsorption of cation surfactants—cetyltrimethylammonium bromide (CTAB) and cetylpyridinium chloride (CPC)—onto magnetic nanoparticles and the application of this mixed hemimicelles solid-phase extraction (SPE) method for the preconcentration of several typical phenolic compounds—bisphenol A (BPA), 4-tert-octylphenol (4-OP), and 4-n-nonylphenol (4-NP)—from environmental water samples. In this novel SPE method, the charged surfactants CTAB and CPC form mixed hemimicelles on Fe3O4 nanoparticles (Fe3O4 NPs), which causes retention of analytes by strong hydrophobic and electrostatic interactions. The SPE method combines the advantages of mixed hemimicelles and magnetic nanoparticles. In order to provide guidelines for the mixed hemimicelles SPE method development, surfactant adsorption isotherms and ζ-potential isotherms were also investigated. The main factors affecting the adsolubilization of analytes, such as the amount of Fe3O4 NPs and surfactants, the ...
274 citations
TL;DR: To the best of the authors' knowledge, this was the first time a mixed hemimicelles SPE method based on Fe3O4 NPs magnetic separation had been used for the pretreatment of environmental water samples.
201 citations
TL;DR: Multi-walled carbon nanotubes are used as adsorbent for solid-phase extraction (SPE) of several chlorophenols (CPs) and under the optimized conditions, detection limits of 0.08-0.8 ng mL(-1) were obtained.
173 citations
TL;DR: Eight synthetic food colorants were determined by high-performance ion chromatography on an anion-exchange analytical column with very low hydrophobicity and visible absorbance detection, which was very advantageous for routine analysis.
162 citations
TL;DR: The proposed method had been applied to determining the five phthalates in four environmental water samples and concentration factor of 600 was achieved easily and recovery results with relative standard deviation (R.S.D.) of below 6% were achieved.
144 citations
Cited by
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TL;DR: This review presents an overview of the classes of NP relevant to the environment and summarizes their formation, emission, occurrence and fate in the environment.
2,093 citations
TL;DR: The present review mainly focuses on NMOs' preparation, their physicochemical properties, adsorption characteristics and mechanism, as well as their application in heavy metal removal.
1,828 citations
TL;DR: In this paper, the authors provide a general description of the occurrence of arsenic in the environment, its toxicity, health hazards, and measurement techniques for speciation analysis, viz., spectrometric, chromatographic, electrochemical, etc.
953 citations
TL;DR: Based on recent research results, the occurrence of tetracycline antibiotics in the environment inhibits the growth of some terrestrial and aquatic species and the residual concentrations of such drugs could affect steroidogenic pathway and consequently cause endocrine disruption of aquatic species.
Abstract: Tetracycline antibiotics are one of the primarily antibiotics groups used for veterinary purposes, for human therapy and for agricultural purposes. Amongst the different antibiotics used, more attention is paid to tetracycline’s as it exhibits serious environmental problems including ecological risks and human health damages. Due to their extensive usage, most of the actual evidence suggests that tetracycline antibiotics are omnipresent compounds found in different ecological compartments. After medication, more than 70 % of tetracycline antibiotics are excreted and released in active form into the environment via urine and feces from humans and animals. Their highly hydrophilic character and low volatility have resulted in significant persistence in the aquatic environment. Very few studies describe the fate and toxicity of tetracycline antibiotics in the environment. Here, we review several important issues with regard to: (1) the toxicity of these compounds on aquatic and terrestrial organisms; (2) their estrogenic effects; (3) their behavior in different ecological systems and; (4) the by-products generated during water treatment. These antibiotics residues promote the development of antibiotic resistant microorganisms, which can induce adverse effect to human health by increasing the risk of certain infections. Based on recent research results, the occurrence of tetracycline antibiotics in the environment inhibits the growth of some terrestrial and aquatic species. Besides, the residual concentrations of such drugs could affect steroidogenic pathway and consequently may cause endocrine disruption of aquatic species. Most of the wastewater treatment plants are not capable of removing effectively the tetracycline antibiotics. Therefore, there is a need to develop alternative processes to remove them from waters. Advanced oxidation processes have been proposed as alternative methods to ensure higher degradation and mineralization of tetracycline antibiotics are present in waters.
886 citations