Development of UPLC-MS Combined with HPLC Technique to Explore the Effects of Exogenous Substances on the Saponin Contents and Growth of Panax notoginseng Leaves

• Bing JIA, 
• Wei FAN, 
• Geng CHEN, 
• Ying LI, 
• Guanghui ZHANG, 
• Shengchao YANG, 
• Junwen CHEN