The method how to remove carbon fluoride impurities, for example ethane hexafluoride (C_(2)F_(6)), from raw carbon tetrafluoride (CF_(4)) in a medium-pressure and low-temperature (-60 ℃,2.

In the article, mostly works are concerned for carbon tetrafluoride standard gas,supply a gap of our country in this field,and explore the new technique of use electron balance to make up standard gas.

In the occurrence of arcs discharges, spark discharges and corona discharges, sulfur hexafluoride (SF6) would be decomposed to complicated byproducts such as sulfur dioxide (SO2), carbon tetrafluoride (CF4), etc.

Experimental Research of Partial Liquid Ventilation with Perfluorocarbon on Acute Lung Injury Induced by Cardiopulmonary Bypass;

Effects of perfluorocarbon on lipopolysaccharide-induced intercellular adhesion molecule-1 expression in cultured pulmonary microvascular endothelial cells;

Effect of combining aerosolization of perfluorocarbon and ambroxol in rabbits with acute lung injury;

There are many more studies on blood substitutes such as carbon-fluoride,chemical modified hemoglobin and liposome.

The emission of hydrofluorocarbons (HFCs), perfluorocarbon (PFCs) and sulfur hexafluoride (SF 6 ) from China in 1995 are estimated primarily as 2 244 t, 2 581 2 t and 215 t, which account for 0 9%, 6 45% and 3 7% of the world total emission, respectively.