Abstract：
:Cyclic volatile methylsiloxanes (cVMS) are widely used in consumer products and commonly detected in the environment. There are challenges in the analysis of cVMS because of their ubiquitous use which can introduce high background contamination. The current study introduces a sample preparation method based on headspace of solid-phase microextraction (SPME) for monitoring the cVMS in waters. Efforts were made to reduce the background contamination during sample preparation and instrument analysis. A laboratory prepared MIL-101 coating was prepared using polysulfone instead of polydimethylsiloxane as adhesive to avoid the contamination. The extraction performance of the MIL-101 fiber was optimized and evaluated. The optimized extraction time and temperature were 60 min and 40 °C, respectively. The method quantification limits of the MIL-101 fiber for octamethylcyclotetrasiloxane (D4), decamethylcyclopentasiloxane (D5) and dodecylcyclohexasiloxane (D6) in water were 0.15 ng mL-1, 0.14 ng mL-1, and 0.27 ng mL-1, respectively. The extraction efficiency of the proposed MIL-101 fiber was comparable to the commercial polydimethylsiloxane/divinylbenzene fiber. The developed method was applied to analyze the cVMS in wastewater treatment plant and the concentrations in the barscreen and in the aeration tank ranged from 0.73 to 3.3 ng mL-1 and 7.74-85.1 ng mL-1, respectively. The MIL-101 fiber was also applied to study the photodegradation of the cVMS in water under simulated sunlight. Approximately 25%, 20%, and 45% of D4, D5, and D6, respectively, were degraded after 10 h exposure.
journal_name
Chemospherejournal_title
Chemosphereauthors
Zhang L,Jiang R,Li W,Muir DCG,Zeng EYdoi
10.1016/j.chemosphere.2020.126304subject
Has Abstractpub_date
2020-07-01 00:00:00pages
126304eissn
0045-6535issn
1879-1298pii
S0045-6535(20)30497-5journal_volume
250pub_type
杂志文章相关文献
CHEMOSPHERE文献大全abstract：:This study aimed to evaluate the effect of veterinary pharmaceuticals (VPs) used to control endo- and ectoparasites in ruminants, on the survival and reproduction of the collembolan species Folsomia candida. Standard ecotoxicological tests were conducted in Tropical Artificial Soil and the treatments consisted of incr...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2017.01.069
更新日期：2017-04-01 00:00:00
abstract：:It is important to understand the environmental fate and potential risks posed by metals and metalloids around mines and in legacy mining areas. In order to assess the bioavailable concentrations of several potentially toxic elements (PTEs: As, Pb, Cd, Ni, Cu, Cr, Mn, Zn, Ba, U) and rare earth elements (REEs: La to Lu...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2020.127679
更新日期：2020-12-01 00:00:00
abstract：:Norfloxacin is a synthetic antibiotics drug which is widely used in the treatment of infectious diseases and also often carelessly released into natural environment resulting in antibiotics-contaminated wastewater. In this work, we employed atmospheric-pressure non-thermal dielectric barrier discharge (DBD) to treat n...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2018.07.035
更新日期：2018-11-01 00:00:00
abstract：:Twenty-eight PM2.5 samples collected in Summer (July 2002) and Winter (November 2002) at two sites in Beijing, China were analyzed using GC/MS to investigate the impact of meteorology and coal burning on the solvent extractable organic compounds (SEOC). The characteristics and abundance of the n-alkanes, polycyclic ar...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2005.03.067
更新日期：2005-11-01 00:00:00
abstract：:Because of the well-known molecular complexity and heterogeneity of natural organic matter (NOM), an aquatic bulk NOM was fractionated into well-defined polyphenolic-rich and carbohydrate-rich subfractions. These fractions were systematically characterized by fluorescence emission, three dimensional excitation-emissio...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/s0045-6535(02)00616-1
更新日期：2003-02-01 00:00:00
abstract：:Soils in the SE USA Coastal Plain region frequently have a compacted subsoil layer (E horizon), which is a barrier for water infiltration. Four different biochars were evaluated to increase water infiltration through a compacted horizon from a Norfolk soil (fine-loamy, kaolinitic, thermic, Typic Kandiudult). In additi...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2015.06.038
更新日期：2016-01-01 00:00:00
abstract：:Three common virucidal techniques (chlorine, UV and UV/TiO2) were applied to inactivate virus (MS2 and Phi X174) in condensate water after the evaporation of source-separated urine for reclaimed water. The inactivation efficiencies were compared with the results of previous studies, with the emphasis on the analysis o...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2015.04.083
更新日期：2015-10-01 00:00:00
abstract：:A field survey of metal concentrations and arbuscular mycorrhizal (AM) components of plants growing on five mining sites was conducted in Chenzhou City, Hunan Province, Southern China and a control site in Hong Kong. Significant differences were observed in the average concentrations of total heavy metals (Pb, Zn, Cu,...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2006.06.037
更新日期：2007-01-01 00:00:00
abstract：:(13)C CP-MAS NMR spectroscopy is a technique that has proved to be useful in studying soil organic matter (SOM). Nevertheless, NMR spectra exhibit a weak signal and have very low resolution due to: the low natural abundance of (13)C (1.1% of C) in SOM, the generally low SOM content of soils, and the presence of parama...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2007.08.067
更新日期：2008-02-01 00:00:00
abstract：:Heavy metals accumulated by aquatic crustaceans in environmental studies are normally investigated using the whole body burden, with little regard paid to uptake in different tissues, to potential gender of life stage differences, or to the influence of nutrition on the test organism. This is likely to give erroneous ...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2009.03.003
更新日期：2009-06-01 00:00:00
abstract：:We investigated perfluorinated carboxylic acids (PFCAs) with 7-14 carbon atoms (C7-C14) in the Yodo River system in 2013. C7-C11 were detected at most sampling sites. The range and median of total PFCAs (ΣPFCAs) concentrations were 1.0-89.7 and 11.2 ng L(-1), respectively. The dominant component was C8 (average for al...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2015.05.060
更新日期：2015-11-01 00:00:00
abstract：:The mechanism by which arbuscular mycorrhizal (AM) fungi immobilize lead (Pb) within the cell wall is unclear. Therefore, the aim of this study was to investigate the mechanism by which AM fungi immobilize Pb within the cell wall by measuring the Pb content in the cell wall, the polysaccharide and the uronic acid cont...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2020.128924
更新日期：2021-03-01 00:00:00
abstract：:The inclusion complexes of beta-cyclodextrin-isoproturon were prepared using techniques such as kneading, co-evaporation, and co-precipitation. These complexes were characterised for physical properties and spectral studies such as UV, FTIR, and 1HNMR spectroscopy. To investigate the stoichiometry of the complexes Pha...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/S0045-6535(03)00099-7
更新日期：2003-06-01 00:00:00
abstract：:Previously, we found that Epirrita autumnata larvae, which were fed with leaves that came from a metal polluted area, had an enhanced immune function. To investigate further the cause of the enhanced immunity we examined experimentally the direct influence of the heavy metals, copper and nickel, on the immune function...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2008.02.014
更新日期：2008-05-01 00:00:00
abstract：:The biodegradation of polycyclic aromatic hydrocarbons (PAHs) in aqueous deoxyribonucleic acid (DNA) solution from contaminated soil washing was investigated. Initial data with a model effluent consisting of anthracene, phenanthrene, pyrene and benzo[a]pyrene that were individually dissolved in 1% aqueous DNA solution...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2008.08.004
更新日期：2008-11-01 00:00:00
abstract：:The biotransformation and mineralization of a mixture of two polycyclic aromatic hydrocarbons (PAHs), anthracene and pyrene, which are known contaminants of soil and groundwater, by an enrichment culture in the presence or absence of 100 mg l(-1) Tergitol NP-10, a non-ionic surfactant, and at temperatures of 10 degree...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2005.02.061
更新日期：2005-11-01 00:00:00
abstract：:Dechlorane plus (DP) is found widely in environmental media. Determining DP concentrations in dust and hair and identifying relationships between the concentrations in dust and hair could improve our understanding of the effects of DP in humans. DP concentrations in 48 hair samples from male and female students and in...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2019.05.155
更新日期：2019-09-01 00:00:00
abstract：:An innovative ex situ soil washing technology was developed in this study to remediate organochlorine pesticides (OCPs)-contaminated site. Elevated temperature (50 °C) combined with ultrasonication (35 kHz, 30 min) at 25 g L(-1) methyl-β-cyclodextrin and 100 mL L(-1) sunflower oil were effective in extracting OCPs fro...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2013.12.058
更新日期：2014-06-01 00:00:00
abstract：:To better understand the transformation and photochemical fate of PAHs in aquatic environments, a custom-designed closed-circuit recirculation photodegradation system, combined with inline semi-continuous fluorescence and absorbance measurements, as well as modelling of excitation-emission (EEM) measurements with para...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2020.129386
更新日期：2020-12-21 00:00:00
abstract：:Viticulture represents an important agricultural practice in many countries worldwide. Yet, the continuous use of fungicides has caused copper (Cu) accumulation in soils, which represent a major environmental and toxicological concern. Despite being an important micronutrient, Cu can be a potential toxicant at high co...
journal_title：Chemosphere
pub_type： 杂志文章,评审
doi：10.1016/j.chemosphere.2016.07.104
更新日期：2016-11-01 00:00:00
abstract：:Geochemical distribution of trace elements in sediments could reflect the impact of anthropogenic activities on environmental changes in aquatic ecosystems. In this study, rare earth elements (REEs) were used as geochemical tracers to study the environmental processes in a complex and dynamic aquatic environment. Both...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2018.11.060
更新日期：2019-02-01 00:00:00
abstract：:Aerosol acidity has significant implications for atmospheric processing, and high time-resolution measurements can provide critical insights into those processes. This paper reports diurnal variations of aerosol acidity characterized using an open thermodynamic system in Guangzhou, China. Hourly measurements of PM2.5-...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2018.03.127
更新日期：2018-07-01 00:00:00
abstract：:Presented are results of a study on accumulation of naturally occurring 210Po and 210Pb in ecological and conventional farming food products in Poland: fruits, vegetables and cereals. The main idea behind this research was to determine the activity concentrations of 210Po and 210Pb in ecological and commercial food as...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2017.10.051
更新日期：2018-01-01 00:00:00
abstract：:The degradation reaction of dichloroacetic acid employing H(2)O(2) and UVC radiation (253.7nm) has been studied in a well mixed reactor operating inside a recycling system. It has been shown that in an aqueous solution no stable reaction intermediates are formed and, at every time during the reaction, two mols of hydr...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2006.06.044
更新日期：2007-01-01 00:00:00
abstract：:People have been suffering from air pollution for a decade in China, especially from PM2.5 (particulate matter with a diameter of less than 2.5 μm). Accurate prediction of air quality has great practical significance. In this paper, we propose a data-driven model, called as long short-term memory - fully connected (LS...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2018.12.128
更新日期：2019-04-01 00:00:00
abstract：:Glucocorticoids are widely used to treat a variety of diseases. Consequently, these compounds have been found in water and wastewater matrix. Despite studies have proven its toxicity, just a few works investigate techniques to degrade and mineralize them. To solve this issue, this work presents the degradation and min...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2020.126062
更新日期：2020-06-01 00:00:00
abstract：:The effects of the Xingou landfill leachate on levels of thiobarbituric acid reactive substances (TBARS) and the activities of Cu, Zn-superoxide dismutase (Cu, Zn-SOD), Se-dependent glutathione peroxidase (Se-dependent GPx) and catalase (CAT) were investigated in hearts, kidneys and spleens of Kunming albino mice of b...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2006.02.056
更新日期：2006-11-01 00:00:00
abstract：:This research was carried out on plants Taraxacum officinale, Plantago lanceolata, Betula pendula and Robinia pseudoacacia growing in urban biotopes with different levels of heavy metal contamination in the city of Dąbrowa Górnicza (southern Poland). Based on the pollution index, the highest heavy metal contamination ...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2017.05.128
更新日期：2017-09-01 00:00:00
abstract：:Cyanobacteria-derived toxin microcystin-LR (MCLR) has been widely investigated in its effects on normal cells, there is little information concerning its effects on cancer cells. In the present study, the SMMC-7721 human liver cancer cell line treated with MCLR was used to investigate the change of PP2A, cytoskeleton ...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2014.03.130
更新日期：2014-10-01 00:00:00
abstract：:Photochemical behavior of various polycyclic aromatic hydrocarbons (PAHs) on Fe3+-modified montmorillonite was explored to determine their potential kinetics, pathways, and mechanism under visible light. Depending on the type of PAH molecules, the transformation rate follows the order of benzo[a]pyrene ≈ anthracene > ...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2017.06.106
更新日期：2017-10-01 00:00:00
