The relationship between partition coefficients of hydrocarbons and their retention indices;

Solute-related parameters were computed by means of AM1 method, the quantitative structure-chromatographic retention relationship (QSRR) of the hydrocarbons on different polar stationary phases was set with stepwise regression method.

The relationship of enthalpy of hydrocarbons on OV-1 and SE-54 stationary phase was studied,which provided scientific basis for the automatic recognition and matching programs designing of the peaks on the chromatograms of the hydrocarbons on OV-1 and SE-54 stationary phase under the same temperature condition.

Prediction of the chromatographic retention of aliphatic hydrocarbon compounds;

Quantitative structure-activity relationships of aromatic compounds

Based on the bioactivity valence δAi for bonding atom i,a novel molecular connectivity index nV conside-ring the bioactivity of aromatic compounds is proposed.

A novel topological index L~n for twenty four substituted aromatic compounds(with substituents OH,NH_2,NO_2,Cl,Br and alkyl)has been derived based on the B_i,a characteristic value of bioactivity for bonding atomi.

The pollution of non-hydrocarbons at the Chongwenmen crossing was studied through the analysis of particulates in the air sampled in June 2000.

Photodegradation of Hydrocarbons Catalyzed by TiO_2 in Aqueous Suspension;