Dar-Yl Wang and Bao-Quey Huang (1994) Effects of LAS on the membrane potential of gill epithelium in young tigerperch (Terapon jarbua). Zoological Studies 33(2): 170-173. In order to investigate the effects of LAS (Linear Alkylbenzene Sulfonate) on gill epithelium membrane potential, young tigerperch (Terapon jarbua) , body lengths ranging between 57.5 and 67.5 rnm, were kept in different conce...

Detergent-based mixtures and pure surfactants used as decontaminants in mass casualty scenarios were investigated for their acute 24 h toxicity. Commercial detergents Neodekont, Argos, Dermogel, and FloraFree were tested in male Wistar rats after percutaneous, peroral and intramuscular administration. Pure surfactants althosan MB, sodium alkylbenzene sulphonate, triton X, benzyl dimethyl dodecy...

Pseudomonas testosteroni H-8 oxidizes certain lower alkylbenzene sulfonates at rates inversely related to the length of the alkyl group. Appreciable Q(O)2 values were observed for benzene sulfonate (BS), toluene sulfonate (TS), and ethylbenzene sulfonate (EBS), but not for propylbenzene sulfonate (PS) and higher homologues. Catechol oxidation was catalyzed by a constitutive catechol-2,3-oxygena...

This investigation into the occurrence, character, and transformation of dissolved organic matter (DOM) in treatment wetlands in the western United States shows that (i) the nature of DOM in the source water has a major influence on transformations that occur during treatment, (ii) the climate factors have a secondary effect on transformations, (iii) the wetlands receiving treated wastewater ca...

A bacterial consortium capable of degrading the linear alkylbenzene sulfonate (LAS) was isolated from the wastewater treatment plant. The bacterial consortium consisted of two members, Pantoea agglomerans and Serratia odorifera 2. Cells were grown evenly together in a minimal medium (M9) and nutrient broth (NB). The bacterial consortium was able to grow in the minimal medium containing LAS as t...

SNO+ will search for neutrinoless double beta decay by loading 780 tonnes of linear alkylbenzene liquid scintillator with O(tonne) of neodymium. Using natural Nd at 0.1% loading will provide 43.7 kg of Nd given its 5.6% abundance and allow the experiment to reach a sensitivity to the effective neutrino mass of 100-200 meV at 90% C.L in a 3 year run. The SNO+ detector has ultra low backgrounds w...

Identification, resolution and distribution of main microcontaminant sources of endocrine disruptors in Spanish harbours, coastal waters and sediments are investigated using chemometric methods. We investigated eighteen different endocrine disruptor chemical compounds, including non-ionic surfactants, their degradation products and linear alkylbenzene sulfonates, found in a total number of 74 s...

In this paper the photocatalytic degradation of the anionic surfactant, linear alkylbenzene sulfonicacid (LABSA) was investigated using UV radiation in the presence of TiO2. Our findingsdemonstrate that various parameters exert their individual influence on the photocatalytic degradationof surfactant in wastewaters. The mentioned parameters have been categorized as follow: the initialpH of the ...

A cold-active endoglucanase-producing bacterium was isolated from the Beaufort Sea of Arctic Ocean and identified as Pseudoalteromonas sp. ArcC09. Cellulolytic activity ArcC09 reached a maximum 60 U/mg when cultivated in ZoBell medium for 72 h at 15 °C. This purified endoglucanase, with molecular mass 28 kDa, exhibited pH 7.0 55 The endoglucanase 10% 36% its maximal even low temperatures 5 °C °...

R502 is due to be banned in the near future, and ti)e need for an immediately available and easy-to-use alternative is becoming more and more urgent. Retrofitting refrigerating units can prove easier and less expensive if the mineral or alkylbenzene lubricants usually adopted with R502 have a certain miscibility in the drop-in mixtures. This paper examines the near-azeotropic mixture Rl43a/290/...