In its 171-page ruling the Nicosia district court said: "From 1976 to 2009, the systematic emission of toxic gas dichloromethane
R40 which is potentially carcinogenic, created a cancer cluster in the area in question.
The Montreal Protocol was updated in Kigali, Rwanda, last year to add climate change-causing hydrofluorocarbons (HFCs) to its remit, and Oram expects compounds such as dichloromethane
to now be up for inclusion in a similar fashion.
In order to obtain a more complete insight into the antibacterial activity of the plant and its free radical scavenging ability, different solvents (n-hexane, dichloromethane
, acetone, methanol and water) were used to extract the phytochemicals.
The analytical grade HPLC solvents Methanol, Trifluroacetic-acid (TFA) and dichloromethane
were procured from Sigma Aldrich (Oslo, Norway).
The study's lead author Dr Ryan Hossaini from Lancaster University in UK said that Dichloromethane
is a man-made ozone-depleting chemical that has a range of industrial applications.
This research exclusively deals with another scope of analysis using three more solvents: hexane, ethyl acetate and dichloromethane
Other chemicals used, including dichloromethane
and methanol, were analytical grade.
This aqueous solution was added drop by drop to the dichloromethane
solution through the sides of the beaker for a period of 5 min without disturbing the reaction.
The TLC analyses were carried out by testing the proportions of solvents of different polarities with the aim of identifying the best mobile phase for the separation of the components present in the samples including hexane:dichloromethane
1:1 (v/v), hexane:acetone 8:2, 7:3, and 1:1 (v/v), dichloromethane
:acetone 7:3 and 1:1 (v/v), dichloromethane
(100%), and acetone (100%).
However, it could be partly due to the fact that dichloromethane
is used in the manufacturing process of some HFCs, the 'ozone-friendly' gases which were developed to replace CFCs.
Environmental Protection Agency (EPA) released an updated Toxicological Review of Dichloromethane
(Methylene Chloride) (U.
Each residue of ethanol extract (10 g) was dissolved in methanol (100 mL) and water (300 mL) and exhaustively extracted by consecutive liquid/liquid partition with solvents of increasing polarity (hexane, dichloromethane
and ethyl acetate) using a separating funnel, which was shaken to mix the solvent with the extract and then allowed to stand for phase separation.