A high performance liquid chromatographic method has been developed to determine the flavonoids content in cultured Ginkgo root hairs.

Based on the abnormal high pressure zone,rational water injection pressure in Xingbei development area as well as electrical property of core and rock on the base of Nen Ⅱ Member,a new knowledge of casing damage genetic mechanism in oil layer and non-oil layer has been concluded,with which the cause,particular location and shape of casing damage are all defined in Xingbei development area.

Analysis on remaining oil in Xingnan development area using multi-disciplinary reservoir research results;

This paper introduces the faults change after secondary infilling in Xingnan development area.

Pressure Sensitivity Study on Biaowai Reservoir in Xingnan Development Zone

Through experiments,such as core flow,the sensitivities of the Biaowai reservoir in Xingnan development zone and its causes are studied.

Study on the enzymatic processing technology of instant ginkgo powder;

Application of PVA resin in the extractions of ginkgo;