Based on experiments, the systematic study on the cause for the error of measuring result is carried out, and the monitoring programmers of the sampling methods for gas-phase fluorine and dust-phase fluorine, .

Kinetic mechanism of vapor-phase fluorine emission during coal combustion;

Chemical and physical properties of fluorine and its safety, storage and shipment, preparation process are introduced, some valuable derivatives of fluorine and their applications are also discussed.

Introduced the characteristic of fluorine,offered the way how to select the metal and non metal which have corrosion resistant and oxidation resistant to fluorine,and introduced the toxicity and the safety datas of fluorine to human body.

In order to control and keep watch on the fluorine purity, the gas chromatography with series parallel connection of nine columns with two tubs is developed.

Contents of different soil fluorine forms in North Anhui and their affecting factors;