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Caiming Tang - One of the best experts on this subject based on the ideXlab platform.
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bioaccumulation and biomagnification of ultraviolet absorbents in marine wildlife of the pearl river estuarine south china sea
Environmental Pollution, 2017Co-Authors: Xianzhi Peng, Songsong Xiong, Caiming TangAbstract:Bioaccumulation and trophic transfer in ecosystems is an important criterion for assessing environmental risks of contaminants. This study investigated bioaccumulation and biomagnification of 13 organic ultraviolet absorbents (UVAs) in marine wildlife organisms in the Pearl River Estuary, South China Sea. The UVAs could accumulate in the organisms with biota - sediment accumulation factors (BSAF) of 0.003–2.152. UV531 was the most abundant and showed the highest tendency to accumulate in the organisms with a median BSAF of 1.105. The UVAs demonstrated species - and compound-specific accumulation in the marine organism. Fishes showed significantly higher capability than the cephalopods and crustaceans in accumulation of the UVAs. Habitat did not demonstrate obvious impact on accumulation of the UVA. On the other hand, benzophenone-3, UV328, and UV234 showed significantly higher concentration in the detritus feeding fishes than carnivorous and planktivorous fishes, suggesting governing effect of dietary habits of the organisms on bioaccumulation of these UVAs. Direct uptake from growth media was a significant exposure pathway of the organisms to the UVAs. The estimated trophic magnification factors and biomagnification factors revealed that UV329, UV531, and Octocrylene could potentially biomagnify in the marine food web.
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persistence temporal and spatial profiles of ultraviolet absorbents and phenolic personal care products in riverine and estuarine sediment of the pearl river catchment china
Journal of Hazardous Materials, 2017Co-Authors: Xianzhi Peng, Songsong Xiong, Zhifang Wang, Jianhua Tan, Jiabin Jin, Caiming Tang, Jun Liu, Yujuan FanAbstract:A variety of personal care products have been classified as emerging contaminants (ECs). Occurrence, fate, spatial and vertical profiles of 13 ultraviolet absorbents, triclocarban (TCC) and its dechlorinated products, triclosan (TCS), 2-phenylphenol and parabens were investigated in riverine and estuarine sediment of the Pearl River catchment, China. Bisphenol A (BPA), a widely applied plasticizer, was also investigated. The ECs were widely present in the bed sediment. TCC was the most abundant with a maximum concentration of 332ngg-1 dry weight. The other prominent ECs included BPA, TCS, Octocrylene, and benzotriazole UV stabilizers UV326 and UV328. Treated wastewater effluent was the major source of the ECs in the riverine sediment. TCC, BPA, TCS, methyparaben, UV531, UV326, and UV328 were also detected throughout the estuarine sediment cores, indicating their persistence in the sediment. Temporal trends of the ECs in the sediment cores reflected a combined effect of industrial development, population growth, human life quality improvement, and waste treatment capacity in the Pearl River Delta over the last decades. TCC dechlorination products were frequently detected in the bed sediment with higher levels near treated effluent outlets but only occasionally observed in the sediment cores, suggesting insignificant in-situ TCC dechlorination in the sediment.
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multi target determination of organic ultraviolet absorbents in organism tissues by ultrasonic assisted extraction and ultra high performance liquid chromatography tandem mass spectrometry
Journal of Chromatography A, 2015Co-Authors: Xianzhi Peng, Jiabin Jin, Chunwei Wang, Caiming TangAbstract:a b s t r a c t A sensitive and reliable method was developed for multi-target determination of 13 most widely used organic ultraviolet (UV) absorbents (including UV filters and UV stabilizers) in aquatic organ- ism tissues. The organic UV absorbents were extracted using ultrasonic-assisted extraction, purified via gel permeation chromatography coupled with silica gel column chromatography, and determined by ultra-high performance liquid chromatography-tandem mass spectrometry. Recoveries of the UV absorbents from organism tissues mostly ranged from 70% to 120% from fish filet with satisfactory reproducibility. Method quantification limits were 0.003-1.0 ng g −1 dry weight (dw) except for 2- ethylhexyl 4-methoxycinnamate. This method has been applied to analysis of the UV absorbents in wild and farmed aquatic organisms collected from the Pearl River Estuary, South China. 2-Hydroxy-4- methoxybenzophenone and UV-P were frequently detected in both wild and farmed marine organisms at low ng g−1 dw. 3-(4-Methylbenzylidene)camphor and most of the benzotriazole UV stabilizers were also frequently detected in maricultured fish. Octocrylene and 2-ethylhexyl 4-methoxycinnamate were not detected in any sample. This work lays basis for in-depth study about bioaccumulation and biomag- nification of the UV absorbents in marine environment.
Xianzhi Peng - One of the best experts on this subject based on the ideXlab platform.
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bioaccumulation and biomagnification of ultraviolet absorbents in marine wildlife of the pearl river estuarine south china sea
Environmental Pollution, 2017Co-Authors: Xianzhi Peng, Songsong Xiong, Caiming TangAbstract:Bioaccumulation and trophic transfer in ecosystems is an important criterion for assessing environmental risks of contaminants. This study investigated bioaccumulation and biomagnification of 13 organic ultraviolet absorbents (UVAs) in marine wildlife organisms in the Pearl River Estuary, South China Sea. The UVAs could accumulate in the organisms with biota - sediment accumulation factors (BSAF) of 0.003–2.152. UV531 was the most abundant and showed the highest tendency to accumulate in the organisms with a median BSAF of 1.105. The UVAs demonstrated species - and compound-specific accumulation in the marine organism. Fishes showed significantly higher capability than the cephalopods and crustaceans in accumulation of the UVAs. Habitat did not demonstrate obvious impact on accumulation of the UVA. On the other hand, benzophenone-3, UV328, and UV234 showed significantly higher concentration in the detritus feeding fishes than carnivorous and planktivorous fishes, suggesting governing effect of dietary habits of the organisms on bioaccumulation of these UVAs. Direct uptake from growth media was a significant exposure pathway of the organisms to the UVAs. The estimated trophic magnification factors and biomagnification factors revealed that UV329, UV531, and Octocrylene could potentially biomagnify in the marine food web.
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persistence temporal and spatial profiles of ultraviolet absorbents and phenolic personal care products in riverine and estuarine sediment of the pearl river catchment china
Journal of Hazardous Materials, 2017Co-Authors: Xianzhi Peng, Songsong Xiong, Zhifang Wang, Jianhua Tan, Jiabin Jin, Caiming Tang, Jun Liu, Yujuan FanAbstract:A variety of personal care products have been classified as emerging contaminants (ECs). Occurrence, fate, spatial and vertical profiles of 13 ultraviolet absorbents, triclocarban (TCC) and its dechlorinated products, triclosan (TCS), 2-phenylphenol and parabens were investigated in riverine and estuarine sediment of the Pearl River catchment, China. Bisphenol A (BPA), a widely applied plasticizer, was also investigated. The ECs were widely present in the bed sediment. TCC was the most abundant with a maximum concentration of 332ngg-1 dry weight. The other prominent ECs included BPA, TCS, Octocrylene, and benzotriazole UV stabilizers UV326 and UV328. Treated wastewater effluent was the major source of the ECs in the riverine sediment. TCC, BPA, TCS, methyparaben, UV531, UV326, and UV328 were also detected throughout the estuarine sediment cores, indicating their persistence in the sediment. Temporal trends of the ECs in the sediment cores reflected a combined effect of industrial development, population growth, human life quality improvement, and waste treatment capacity in the Pearl River Delta over the last decades. TCC dechlorination products were frequently detected in the bed sediment with higher levels near treated effluent outlets but only occasionally observed in the sediment cores, suggesting insignificant in-situ TCC dechlorination in the sediment.
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multi target determination of organic ultraviolet absorbents in organism tissues by ultrasonic assisted extraction and ultra high performance liquid chromatography tandem mass spectrometry
Journal of Chromatography A, 2015Co-Authors: Xianzhi Peng, Jiabin Jin, Chunwei Wang, Caiming TangAbstract:a b s t r a c t A sensitive and reliable method was developed for multi-target determination of 13 most widely used organic ultraviolet (UV) absorbents (including UV filters and UV stabilizers) in aquatic organ- ism tissues. The organic UV absorbents were extracted using ultrasonic-assisted extraction, purified via gel permeation chromatography coupled with silica gel column chromatography, and determined by ultra-high performance liquid chromatography-tandem mass spectrometry. Recoveries of the UV absorbents from organism tissues mostly ranged from 70% to 120% from fish filet with satisfactory reproducibility. Method quantification limits were 0.003-1.0 ng g −1 dry weight (dw) except for 2- ethylhexyl 4-methoxycinnamate. This method has been applied to analysis of the UV absorbents in wild and farmed aquatic organisms collected from the Pearl River Estuary, South China. 2-Hydroxy-4- methoxybenzophenone and UV-P were frequently detected in both wild and farmed marine organisms at low ng g−1 dw. 3-(4-Methylbenzylidene)camphor and most of the benzotriazole UV stabilizers were also frequently detected in maricultured fish. Octocrylene and 2-ethylhexyl 4-methoxycinnamate were not detected in any sample. This work lays basis for in-depth study about bioaccumulation and biomag- nification of the UV absorbents in marine environment.
D Pradarodriguez - One of the best experts on this subject based on the ideXlab platform.
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multiclass determination of sunscreen chemicals in water samples by liquid chromatography tandem mass spectrometry
Analytical Chemistry, 2008Co-Authors: Rosario Rodil, Jose Benito Quintana, P Lopezmahia, Soledad Muniateguilorenzo, D PradarodriguezAbstract:A novel analytical method based on solid-phase extraction (SPE) and liquid chromatography−electrospray ionization-tandem mass spectrometry (LC−ESI-MS/MS) for the determination of UV sunscreen agents in the water environment is presented. After a thorough investigation of SPE and LC−MS/MS conditions, it permits the enrichment and determination of nine of these compounds in a single methodology, including three very polar sulfonates (e.g., 2-phenylbenzimidazole-5-sulfonic acid, PBSA) and six other less polar compounds (e.g., benzophenone-3, BP-3; Octocrylene, OC,...). Other important matters of concern in the determination of UV filters at trace levels in water, i.e., adsorption on glassware and blank contamination problems, have also been discussed and minimized. This methodology affords detection limits between 7 and 46 ng L-1 and SPE recoveries in the range 63−102% from different real water matrixes, except for butylmethoxydibenzoylmethane (BM-DBM), which was not determinable in wastewater samples due to...
Maria Llompart - One of the best experts on this subject based on the ideXlab platform.
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Different miniaturized extraction methodologies followed by GC-MS/MS analysis for the determination of UV filters in beach sand.
Journal of separation science, 2018Co-Authors: Marlene Vila, Carmen Garcia-jares, Maria Llompart, Thierry DagnacAbstract:Four different miniaturized methodologies were developed and applied to the analysis of 11 UV filters in sand samples. These approaches were based on ultrasound and vortex extractions, on-column lixiviation, and ultrasound extraction followed by solid-phase microextraction. Gas chromatography with tandem mass spectrometry was used for quantitative analysis. The analytical performance provided by the four methods was evaluated in terms of linearity, accuracy, precision, and limits of quantification. Lixiviation was discarded since it provided the lowest recoveries and the highest limits of quantification. In contrast, ultrasound and vortex extractions, and ultrasound extraction followed by solid-phase microextraction were suitable, with recoveries in general >85% and limits of quantification at the low ng/g level. Moreover, ultrasound extraction followed by solid-phase microextraction allowed using external calibration with aqueous standards and it provided higher sensitivity, with limits of quantification in general one order of magnitude lower than those achieved with the other techniques. The methodologies were applied for the analysis of four marine sand samples, and the results were statistically compared performing an analysis of variance. Eight out of the eleven target UV filters were detected. Octocrylene was found at very high concentrations (up to 1000 ng/g) followed by ethylhexyl salicylate, 4-methylbenzylidene camphor, homosalate, and 2-ethylhexyl methoxycinnamate.
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ultrasound assisted emulsification microextraction followed by gas chromatography mass spectrometry and gas chromatography tandem mass spectrometry for the analysis of uv filters in water
Microchemical Journal, 2016Co-Authors: Marlene Vila, Thierry Dagnac, Pablo J Lamas, Carmen Garciajares, Maria LlompartAbstract:Abstract A methodology based on ultrasound-assisted emulsification microextraction (USAEME) has been developed for the simultaneous analysis of ten UV filters (2-ethylhexyl methoxycinnamate (2EHMC), 4- methylbencylidene camphor (4MBC), benzyl salicylate (BS), ethylhexyl dimethyl PABA (EHPABA), ethylhexyl salicylate (EHS), etocrylene (Eto), homosalate (HMS), isoamyl methoxycinnamate (IAMC), menthyl anthranilate (MA) and Octocrylene (OCR)) in different water samples employing two detection modes, gas chromatography–mass spectrometry (GC–MS), and gas chromatography–tandem mass spectrometry (GC–MS/MS). The extraction parameters such as the extraction solvent, the temperature and the time of extraction, and the addition of salt were optimized by means of experimental design tools. Selected conditions were 100 μL of chloroform, 10 mL of sample, 2 g of salt (NaCl) and 5 min of extraction. Good linearity (R2 > 0.9910), quantitative recoveries (> 90% for most of compounds) and satisfactory precision (RSD
Rosario Rodil - One of the best experts on this subject based on the ideXlab platform.
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Ecotoxicological Evaluation of the UV Filters Ethylhexyl Dimethyl p -Aminobenzoic Acid and Octocrylene Using Marine Organisms Isochrysis galbana , Mytilus galloprovincialis and Paracentrotus lividus
Archives of environmental contamination and toxicology, 2017Co-Authors: A. Giraldo, Rosario Rodil, Jose Benito Quintana, Rosa Montes, Leticia Vidal-liñán, Ricardo BeirasAbstract:The growing concern regarding the negative effects of solar radiation on the skin has led to a drastic increase in the use of sunscreens containing in its composition up to 10% of aromatic chemicals, such as ethylhexyl dimethyl p-aminobenzoic acid (OD-PABA) and Octocrylene (OC). The objective of this study was to evaluate the toxicity and to assess the environmental risk posed by these two ultraviolet filters, widely used in cosmetics and as plastic additives, in the marine environment. Several ecotoxicological bioassays were performed with three model organisms belonging to different trophic levels: the microalgae Isochrysis galbana, the mussel Mytilus galloprovincialis, and the sea urchin Paracentrotus lividus. The results show remarkable toxicity to marine species for both OD-PABA (EC10 values range 26,5–127 µg L−1) and OC (EC10 range 103–511 µg L−1). The cell division in the microalgae I. galbana was the most sensitive endpoint tested. To determine the environmental risk of these substances, the risk coefficient (RQ) was calculated. Due to the higher concentrations reported, OC showed remarkable risk (RQ = 0.27), whereas for OD-PABA the risk was low (RQ = 0.007).
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multiclass determination of sunscreen chemicals in water samples by liquid chromatography tandem mass spectrometry
Analytical Chemistry, 2008Co-Authors: Rosario Rodil, Jose Benito Quintana, P Lopezmahia, Soledad Muniateguilorenzo, D PradarodriguezAbstract:A novel analytical method based on solid-phase extraction (SPE) and liquid chromatography−electrospray ionization-tandem mass spectrometry (LC−ESI-MS/MS) for the determination of UV sunscreen agents in the water environment is presented. After a thorough investigation of SPE and LC−MS/MS conditions, it permits the enrichment and determination of nine of these compounds in a single methodology, including three very polar sulfonates (e.g., 2-phenylbenzimidazole-5-sulfonic acid, PBSA) and six other less polar compounds (e.g., benzophenone-3, BP-3; Octocrylene, OC,...). Other important matters of concern in the determination of UV filters at trace levels in water, i.e., adsorption on glassware and blank contamination problems, have also been discussed and minimized. This methodology affords detection limits between 7 and 46 ng L-1 and SPE recoveries in the range 63−102% from different real water matrixes, except for butylmethoxydibenzoylmethane (BM-DBM), which was not determinable in wastewater samples due to...
