Guanjie R&D Center, Analysis and Testing Center is located in Xijing Industrial Park, Yanta District, Xi'an. It is built with GMP and QS standard. It has HPLC(high performance liquid chromatography) , UV, gas chromatograph, atomic absorption chromatograph, chromatographic infrared analyzer, mass spectrometry ultraviolet - visible spectrophotometer, polarimeter? and another large number of high-end quality testing equipment. Center has a qualified high-tech hard detection team, responsible for the company's raw materials, finished products, semi-finished products such as inspection and quality control.