Through the stuby of the event related potential of selective attention to pictographic characters of different structure in the simulating true reading model ,we exacted the earlier endogenous components which directly related to selective attention ;and made it clear that the P300 indexed the brain s relaxation from tension .

The review is to elucidate the characteristics of exogenous components(N1,MMN,N550) and endogenous components(P3,N300,N400) of ERP during natural sleep,and to discuss the role of all components in sleep information processing.

Detection of bovine derived material in meat products by PCR-RFLP assay;

05% for bovine derived material and 0.

The results showed that the detection limitation was 10μg/g for bovine derived material and (0.

Identification of chicken derived material in chicken essence seasoning;

The analysis of drug-induced constituents in the rats serum obtained after Compound Wurenchun Capsules oral administration;

OBJECTIVE To establish the fingerprint of compound wurenchun capsules in rat serum for the analysis of common drug-induced constituents in blood and the preliminary analysis of the origin of these common constituents,thus lay the foundation for the study on the serum pharmacochemistry of this preparation.