[Determination of micro amounts of zinc in medicinal herbs using the chemiluminescence quenching method]

This paper is based on the principle that the relative luminous strength of luminol-H2O2-Co2+ chemiluminescence quenching is extinguished by zinc. The contents of zinc in Flos Carthami, Radix Codonopsis Pilosulae, Radix Ginseng and Fructus Lycii were measured in optimol experimental conditions.