Stable carbon isotope fractionation of trans-1,2-Dichloroethylene (cas 156-60-5) during co-metabolic degradation by methanotrophic bacteria

Add time:09/29/2019    Source:infona.pl

Changes in the carbon isotope ratio (δ 1 3 C) of trans-1,2-Dichloroethylene (cas 156-60-5) (t-DCE) were measured during its co-metabolic degradation by Methylomonas methanica, a type I methanotroph, and Methylosinus trichosporium OB3b, a type II methanotroph. In closed-vessel incubation experiments with each bacterium, the residual t-DCE became progressively enriched in 1 3 C, indicating isotopic fractionation. From these experiments, the biological fractionation during t-DCE co-metabolism, expressed as , was measured to be -3.5%% for the type I culture and -6.7%% for the type II culture. This fractionation effect and subsequent enrichment in the δ 1 3 C of the residual t-DCE can thus be applied to determine the extent of biodegradation of DCE by these organisms. Based on these results, isotopic fractionation clearly warrants further study, as measured changes in the δ 1 3 C values of chlorinated solvents could ultimately be used to monitor the extent of biodegradation in laboratory or field settings where co-metabolism by methanotrophs occurs.

We also recommend Trading Suppliers and Manufacturers of trans-1,2-Dichloroethylene (cas 156-60-5). Pls Click Website Link as below: cas 156-60-5 suppliers

Prev:High-resolution infrared study of collisionally cooled trans-1,2-Dichloroethylene (cas 156-60-5)
Next:Chloroethylene Mixtures: Pharmacokinetic Modeling and in Vitro Metabolism of Vinyl Chloride, Trichloroethylene, and trans-1,2-Dichloroethylene (cas 156-60-5) in Rat)