Method of SPE-GC/FID was adopted to quantitatively analyze the contamination degree and pollution characteristics of n-alkane in 10 groundwater samples collected from typical wastewater irrigation area around Shenyang city, Liaoning Province.

The degradation ability and uptake modes of Long-chain alkane-degrading bacteria were investigated.

Separation and determination of alkane and cycloparaffinic hydrocarbon in heavy oil by combining ultrasonic wave with the adductions of urea and thiourea;

Harmonic topological researches of thermodynamic properties for alkanes;

A study of correlation between the physical-chemical properties and molecular molar mass of alkanes;

The result showed that the impurities in crude phytosterols from soybean oil deodorizer distillate and rapeseed oil deodorizer distillate were long chain alkane and wax, respectively.

The characteristics of difunctional modified polysiloxane,such as amido and polyether modified polysiloxane,amido and amid modified polysiloxane,amido and long chain alkane modified polysiloxane,epoxy and polyether modified polysiloxane,carboxy and long chain alkane modified polysiloxane were introduced,their synthesis process,application were described,and their prospects were predicted.

STM observation shows that long chain alkanes increase the adsorption stability of organic molecules.

QSPR Studies on Physico-Chemical Properties of Alkanes;

Study on the reletionship between critical constant of alkanes and their molecular structures by using molecular topology;

Based on the molecular topological theory, novel molecular structure information connectivity indices mZc(m=0,l,2,…,n), 1Zc(m=0,1) are found out to be good correlation with gas chromatographic retention index RI of alkanes.