Determination of nine components in Reduning Injection by quantitative analysis of multi-components with a single-marker Determination of iridoid glycosides in Lonicerae Japonicae Flos and its patent medicine Lianhua Qingwen Capsule by dispersive solid phase extraction-HPLC Determination of organic acids and glycosides in different species of Lonicerae Flos Optimization on alcohol precipitation process for Lonicerae Flos and Artemisiae Annuae Herba in Reduning Injection by central composite design and response surface methodology Determination of eight components in Lonicerae Japonicae Flos by HPLC