cochinchinensis as: 1, 2, 4, 5-tetrachloro-3, 6-dimethoxybenzene (Ⅰ), cholest-4α-methyl-7-en-3β-ol (Ⅱ), cholest-4α-methyl-7-en-3-one (Ⅲ), hexacosane (Ⅳ), cholest-7-en-3β-ol (Ⅴ), cholest-7-en-3-one (Ⅵ).

Study on Localization of Degradation Enzyme for n-Hexadecane and Enzymatic Degradability;

EPR Measurement of Hydroxyl Radicals and Rate Constant of n-Hexadecane Photocatalytic Degradation;

Citric Acid Fermentation from n-Hexadecane By Yeasts;

To research the nano-scale thin film lubrication which consists widely in micro electro mechanical systems and precision instruments,firstly,an interaction model of long chain molecules hexadecane,used as lubrication,was built.

It was found that hexadecane was the most suitable oxygen vector and optimum concentration was 10% (v/v).

The adsorption characteristics,bio-adsorption kinetics and bio-regeneration capability of activated carbon in the biological activated carbon(BAC) system was studied using hexadecane as a target.

In the system droplets in microns are first formed by emulsifying an organic phase consisting of a core material (n hexadecane) and an oil soluble reactive monomer,toluene 2,4 diisocyanate (TDI),in an aqueous phase.

Hydroisomerization of n hexadecane on zeolite catalysts was studied and the reaction mechanism was discussed, which may provide new clues to developing hydroisomerization catalysts with high selectivity.

RESULTS Five compounds were isolated and identified as hexacosyl stearate(Ⅰ),helicterilic acid(Ⅱ),stigmasterol 3 O β D glucopyranoside(Ⅲ),β D glucopyranoside(Ⅳ),β D glucopyranosyl (1→6) β D glucopyranosyl(1→4) β D glucopyranoside(Ⅴ),respectively.