Application of different RP-HPLC methods for the determination of the octanol/water partition coefficient of selected tetrachlorobenzyltoluenes.


:Reversed-phase high-performance liquid chromatography (RP-HPLC) in both, isocratic and gradient elution mode (stationary phase: LiChrospher 100 RP-18; mobile phase: water/methanol or water/acetonitrile) was used for a renewed determination of octanol/water partition coefficients (Kow) of selected tetrachlorobenzyltoluene (TCBT) isomers. Reported Kow values identify this substance class as very hydrophobic but the data are relatively inconsistent. Based on a series of calibration runs with hydrophobic reference substances of different chemical structure at various eluent compositions we tested different approaches for the evaluation of isocratic retention factors (logk) and found substantial differences between the direct calibration procedure at special methanol volume fractions in the mobile phase (0.95-0.80) and the use of retention factors extrapolated to pure water as eluent (logkw). The logKow values obtained for the TCBTs with the latter approach are around 0.5 units higher and closer to literature data. The gradient elution experiments yield slightly better results compared to the isocratic direct calibration procedure, but not as good as the calibration with log kw. In addition, the use of the RP-HPLC retention factors for estimating sorption coefficients (Koc) of TCBT isomers is discussed.






Paschke A,Manz M,Schüürmann G




Has Abstract


2001-11-01 00:00:00














  • Granular encapsulation of light hydrophobic liquids (LHL) in LHL-salt water systems: Particle induced densification with quartz sand.

    abstract::Addition of granular materials to floating crude oil slicks can be effective in capturing and densifying the floating hydrophobic phase, which settles by gravity. Interaction of light hydrophobic liquids (LHL) with quartz sand was investigated in LHL-salt water systems. The LHLs studied were decane, tetradecane, hexad...


    pub_type: 杂志文章


    authors: Boglaienko D,Tansel B,Sukop MC

    更新日期:2016-02-01 00:00:00

  • Monometal and competitive adsorption of heavy metals by sewage sludge-amended soil.

    abstract::Sewage sludge-amended soils may alter their ability to adsorb heavy metals over time, due to the decomposition of sludge-borne organic matter. Thus, we studied Cd, Ni, and Zn adsorption by a sewage sludge-amended soil (Typic Xerofluvent) before and after one-year incubation in both monometal and competitive systems. I...


    pub_type: 杂志文章


    authors: Antoniadis V,Tsadilas CD,Ashworth DJ

    更新日期:2007-06-01 00:00:00

  • Suspect screening analysis in house dust from Belgium using high resolution mass spectrometry; prioritization list and newly identified chemicals.

    abstract::In recent years, several changes have been made to the composition of various products which are used indoors. Plenty of new chemical additives have been incorporated to materials to comply with current legislation and safety rules. Consequently, the emission profiles of contaminants detected indoors may change over t...


    pub_type: 杂志文章


    authors: Christia C,Poma G,Caballero-Casero N,Covaci A

    更新日期:2021-01-01 00:00:00

  • The effect of terpenes on the biodegradation of polychlorinated biphenyls by Pseudomonas stutzeri.

    abstract::The effect of two terpenes, carvone and limonene, on the biodegradation of DELOR 103, a commercial mixture of polychlorinated biphenyls (PCBs), by Pseudomonas stutzeri, an isolate from long-term PCB-contaminated soil, was studied in detail. The addition of both carvone and limonene as potential inducers of the dioxyge...


    pub_type: 杂志文章


    authors: Tandlich R,Brezná B,Dercová K

    更新日期:2001-09-01 00:00:00

  • Use of multiple regression models to evaluate the formation of halonitromethane via chlorination/chloramination of water from Tai Lake and the Qiantang River, China.

    abstract::The deterioration of water quality, especially organic pollution in Tai Lake and the Qiantang River, have recently received attention in China. The objectives of this study were to evaluate the formation of halonitromethanes (HNMs) using multiple regression models for chlorination and chloramination and to identify th...


    pub_type: 杂志文章


    authors: Hong H,Qian L,Xiong Y,Xiao Z,Lin H,Yu H

    更新日期:2015-01-01 00:00:00

  • The role of vitamin C as antioxidant in protection of biochemical and haematological stress induced by chlorpyrifos in freshwater fish Clarias batrachus.

    abstract::The study was conducted to explore the modulatory effects of chlorpyrifos and protective role of vitamin C in tissues of Clarias batrachus. Treatments include E1 group (basal diet plus 1.65mgL(-1) CPF) and E2 group (basal diet+200mgkg body weight vitamin C and 1.65mgL(-1) CPF) along with a control group of fishes (fed...


    pub_type: 杂志文章


    authors: Narra MR,Rajender K,Rudra Reddy R,Rao JV,Begum G

    更新日期:2015-08-01 00:00:00

  • An exploratory study of total mercury levels in archaeological caribou hair from northwest Alaska.

    abstract::Over the past ten years, total mercury (THg) levels have been surveyed in Alaskan wildlife and fish as part of the Arctic Monitoring and Assessment (AMAP). Beyond these studies there is little historical data on THg levels in important subsistence species for people in Alaska. A survey of THg in caribou hair from arch...


    pub_type: 杂志文章,评审


    authors: Gerlach SC,Duffy LK,Murray MS,Bowers PM,Adams R,Verbrugge DA

    更新日期:2006-12-01 00:00:00

  • The silvering process of European eel (Anguilla anguilla) influences PAH metabolite concentrations in bile fluid: consequences for monitoring.

    abstract::The stock of the catadromous European eel (Anguilla anguilla L.) continues to decline and there is growing evidence that poor health status due to contaminants might be a key element in this decrease. Organic contaminants such as polycyclic aromatic hydrocarbons (PAHs) belong to the major threats to yellow eel in thei...


    pub_type: 杂志文章


    authors: Nagel F,Wagner C,Hanel R,Kammann U

    更新日期:2012-03-01 00:00:00

  • Testing common sediment-porewater distribution models for their ability to predict dissolved concentrations of POPs in The Grenlandsfjords, Norway.

    abstract::This study compares in situ observed porewater concentration of persistent organic pollutants (POPs) with predictions by common solid-water phase distribution models. Bottom sediments were sampled in The Grenlandsfjords, Norway, and the interstitial porewater was isolated from the solids by centrifugation and filtrati...


    pub_type: 杂志文章


    authors: Persson NJ,Bucheli TD,Gustafsson O,Broman D,Naes K,Ishaq R,Zebühr Y

    更新日期:2005-06-01 00:00:00

  • Fine particulate air pollution and hospital admissions and readmissions for acute myocardial infarction in 26 Chinese cities.

    abstract::Monitoring data on fine particulate matter (PM2.5) level in China's major cities were available since 2013. We conducted a time-stratified case-crossover study to evaluate the association between short-term exposure to PM2.5 and hospital admissions for acute myocardial infarction (AMI), as well as subsequent cardiac a...


    pub_type: 杂志文章


    authors: Liu H,Tian Y,Cao Y,Song J,Huang C,Xiang X,Li M,Hu Y

    更新日期:2018-02-01 00:00:00

  • Spatial distribution of polyfluoroalkyl compounds in seawater of the German Bight.

    abstract::The spatial distribution of polyfluoroalkyl compounds (PFCs) and their composition profile was investigated in 48 water samples collected from the German Bight. All samples were prepared by solid-phase extraction with Strata XAW cartridges and analysed using high performance liquid chromatography/negative electrospray...


    pub_type: 杂志文章


    authors: Ahrens L,Felizeter S,Ebinghaus R

    更新日期:2009-06-01 00:00:00

  • A practical approach to estimate emission rates of indoor air pollutants due to the use of personal combustible products based on small-chamber studies.

    abstract::As emission rates of airborne pollutants are commonly measured from combusting substances placed inside small chambers, those values need to be re-evaluated for the possible significance under practical conditions. Here, a simple numerical procedure is investigated to extrapolate the chamber-based emission rates of fo...


    pub_type: 杂志文章


    authors: Szulejko JE,Kim KH

    更新日期:2016-02-01 00:00:00

  • Personal level exposure and hazard potential of particulate matter during haze and non-haze periods in Singapore.

    abstract::Severe haze episodes originating from biomass burning are common in Southeast Asia. However, there is a paucity of data on the personal exposure and characteristics of Particulate Matter (PM) present in ambient air during haze and non-haze periods. Aims of this study were to monitor 24 h ambulatory exposure to PM amon...


    pub_type: 杂志文章


    authors: George S,Chua ML,ZheWei DZ,Das R,Bijin VA,Connolly JE,Lee KP,Yung CF,Teoh OH,Thomas B

    更新日期:2020-03-01 00:00:00

  • Selenium volatilization in vegetated agricultural drainage sediment from the San Luis Drain, Central California.

    abstract::The presence of large amounts of Se-laden agricultural drainage sediment in the San Luis Drain, Central California, poses a serious toxic threat to wildlife in the surrounding environment. Effective management of the drainage sediment becomes a practical challenge because the sediment is polluted with high levels of S...


    pub_type: 杂志文章


    authors: Bañuelos GS,Lin ZQ,Arroyo I,Terry N

    更新日期:2005-09-01 00:00:00

  • Concentrations and mass fluxes estimation of organochlorine pesticides in Three Gorges Reservoir with virtual organisms using in situ PRC-based sampling rate.

    abstract::Organochlorine pesticides (OCP) are widely distributed environmental pollutants. Due to their persistence and toxicity, it is important to know their fluxes and spatial and temporal distribution in the environment. In this study, a new procedure to estimate OCP concentration based on a set of performance reference com...


    pub_type: 杂志文章


    authors: Temoka C,Wang J,Bi Y,Deyerling D,Pfister G,Henkelmann B,Schramm KW

    更新日期:2016-02-01 00:00:00

  • Computational and statistical modeling for parameters optimization of electrochemical decontamination of synozol red dye wastewater.

    abstract::In this study, computational and statistical models were applied to optimize the inherent parameters of an electrochemical decontamination of synozol red. The effect of various experimental variables such as current density, initial pH and concentration of electrolyte on degradation were assessed at Ti/RuO0·3TiO0·7O2 ...


    pub_type: 杂志文章


    authors: Khan SU,Khan H,Anwar S,Khan S,Boldrin Zanoni MV,Hussain S

    更新日期:2020-08-01 00:00:00

  • Environmentally relevant concentrations of glibenclamide induce oxidative stress in common carp (Cyprinus carpio).

    abstract::The hypoglycemic pharmaceutical glibenclamide (GLB) is widely used around the world. This medication is released into the environment by municipal, hospital and industrial wastewater discharges. Although there are reports of its environmental occurrence in the scientific literature, toxicity studies on aquatic species...


    pub_type: 杂志文章


    authors: Guadalupe Martínez-Viveros EM,Islas-Flores H,Dublán-García O,Galar-Martínez M,SanJuan-Reyes N,García-Medina S,Hernández-Navarro MD,Gómez-Oliván LM

    更新日期:2018-04-01 00:00:00

  • Elimination of diclofenac from water using irradiation technology.

    abstract::The effluents of wastewater treatment plants, usually directly emitted to the environment, often contain the anti-inflammatory drug diclofenac (DCF). The paper investigates DCF elimination using irradiation technology. Hydroxyl radical and hydrated electron reactive intermediates resulting from water radiolysis effect...


    pub_type: 杂志文章


    authors: Homlok R,Takács E,Wojnárovits L

    更新日期:2011-10-01 00:00:00

  • Screening of benzodiazepines in thirty European rivers.

    abstract::Pharmaceuticals as environmental contaminants have received a lot of interest over the past decade but, for several pharmaceuticals, relatively little is known about their occurrence in European surface waters. Benzodiazepines, a class of pharmaceuticals with anxiolytic properties, have received interest due to their ...


    pub_type: 杂志文章


    authors: Fick J,Brodin T,Heynen M,Klaminder J,Jonsson M,Grabicova K,Randak T,Grabic R,Kodes V,Slobodnik J,Sweetman A,Earnshaw M,Barra Caracciolo A,Lettieri T,Loos R

    更新日期:2017-06-01 00:00:00

  • Transport and attenuation of dissolved glyphosate and AMPA in a stormwater wetland.

    abstract::Glyphosate is an herbicide used widely and increasingly since the early 1990s in production of many crops and in urban areas. However, knowledge on the transport of glyphosate and its degradation to aminomethylphosphonic acid (AMPA) in ecosystems receiving urban or agricultural runoff is lacking. Here we show that tra...


    pub_type: 杂志文章


    authors: Imfeld G,Lefrancq M,Maillard E,Payraudeau S

    更新日期:2013-01-01 00:00:00

  • On-filter degradation of particle-bound benzo[a]pyrene by ozone during air sampling: a review of the experimental evidence of an artefact.

    abstract::On-filter loss of benzo[a]pyrene (BaP) during air sampling due to reaction with ozone was observed in several experimental studies. It was also of concern in the recent CEN method for BaP measurement in ambient air: a denuder-based sampling system minimising this loss is described in the method but, due to the scarcit...


    pub_type: 杂志文章,评审


    authors: Menichini E

    更新日期:2009-11-01 00:00:00

  • Genetic susceptibility to dioxin-like chemicals' induction of cytochrome P4501A2 in the human adult linked to specific AhRR polymorphism.

    abstract:BACKGROUND:Dioxin-like chemicals are known to exert their effect by binding to aryl hydrocarbon receptor (AhR), forming complexes with aryl hydrocarbon nuclear translocator (ARNT), and binding to dioxin responsive elements (DREs) in promoter region to regulate the transcription of specific genes. In a previous study of...


    pub_type: 杂志文章


    authors: Hung WT,Lambert GH,Huang PW,Patterson DG Jr,Guo YL

    更新日期:2013-03-01 00:00:00

  • Antioxidant responses of triangle sail mussel Hyriopsis cumingii exposed to harmful algae Microcystis aeruginosa and high pH.

    abstract::In lakes and reservoirs, harmful algal blooms and high pH have been deemed to be two important stressors related to eutrophication, especially in the case of CO2 depletion caused by dense blooms. However, the effects of these stressors on the economically important shellfish that inhabit these waters are still not wel...


    pub_type: 杂志文章


    authors: Liu Y,Li L,Zheng L,Fu P,Wang Y,Nguyen H,Shen X,Sui Y

    更新日期:2020-03-01 00:00:00

  • Microcystin-LR exposure induced nephrotoxicity by triggering apoptosis in female zebrafish.

    abstract::Recently, several studies showed that microcystin-LR (MCLR) can accumulate and induce toxicity in kidney. However, the exact mechanism is unknown. The aim of this study was to explore the mechanism of MCLR-induced nephrotoxicity. To this end, adult zebrafish were exposed to MCLR (0, 1, 5 and 25 μg/L) for 60 days. Expo...


    pub_type: 杂志文章


    authors: Wang Z,Li G,Wu Q,Liu C,Shen J,Yan W

    更新日期:2019-01-01 00:00:00

  • Umbilical cord blood PBDEs concentrations in relation to placental size at birth.

    abstract::Previous studies have linked prenatal polybrominated diphenyl ether (PBDE) exposure to adverse birth outcomes. Reductions in placental size might mediate those adverse effects. We examined whether umbilical cord blood PBDEs concentrations were associated with placental size at birth. A total of 121 mother-newborn pair...


    pub_type: 杂志文章


    authors: Zhao Y,Song Q,Cao Z,Su X,Hua J,Zhang Y,He X

    更新日期:2018-06-01 00:00:00

  • Contribution of aluminas and aluminosilicates to the formation of PCDD/Fs on fly ashes.

    abstract::Chlorinated aromatics undergo surface-mediated reactions with metal oxides to form Environmentally Persistent Free Radicals (EPFRs) which can further react to produce polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs). Previous work using laboratory-made fly ash surrogates composed of transition metal oxide...


    pub_type: 杂志文章


    authors: Potter PM,Dellinger B,Lomnicki SM

    更新日期:2016-02-01 00:00:00

  • The limited facilitating effect of dissolved organic matter extracted from organic wastes on the transport of titanium dioxide nanoparticles in acidic saturated porous media.

    abstract::The complexity of natural dissolved organic matter (DOM) motivates the determination of how DOM from diverse sources affects the environmental behaviors of engineered nanoparticles. Here, three types of DOM, DOM extracted from swine manure (SWDOM), sludge (SLDOM) and sediment (SEDOM), were characterized, and their eff...


    pub_type: 杂志文章


    authors: Zhang R,Zhang H,Tu C,Luo Y

    更新日期:2019-12-01 00:00:00

  • Comprehensive study on dioxin contents in binder and anti-caking agent feed additives.

    abstract::Polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) were determined in some additives widely employed as binder and anti-caking agents in feedstuffs, such as kaolin, bentonite, zeolite, etc. with an special attention on sepiolite samples. Owing to their physico-chemical properties, the ...


    pub_type: 杂志文章


    authors: Abad E,Llerena JJ,Sauló J,Caixach J,Rivera J

    更新日期:2002-03-01 00:00:00

  • Variations in dissolved organic nitrogen concentration in biofilters with different media during drinking water treatment.

    abstract::Dissolved organic nitrogen (DON) is potential precursor of disinfection byproducts (DBPs), especially nitrogenous DBPs. In this study, we investigated the impact of biofilters on DON concentration changes in a drinking water plant. A small pilot plant was constructed next to a sedimentation tank in a drinking water pl...


    pub_type: 杂志文章


    authors: Zhang H,Zhang K,Jin H,Gu L,Yu X

    更新日期:2015-11-01 00:00:00

  • Chemical characterization, sources and potential health risk of PM2.5 and PM1 pollution across the Greater Athens Area.

    abstract::With the principal aim to assess the typical Mediterranean profile of the PM2.5 and PM1 pollution, three intensive monitoring campaigns took place simultaneously within different types of environment across an urban location of the basin. Focusing on the PM components with numerous anthropogenic sources and increased ...


    pub_type: 杂志文章


    authors: Pateraki S,Asimakopoulos DN,Maggos T,Assimakopoulos VD,Bougiatioti A,Bairachtari K,Vasilakos C,Mihalopoulos N

    更新日期:2020-02-01 00:00:00