Home / Standards / GB/T 23193-2017 GB/T 23193-2017 Active Determination of theanine in tea—Uusing high performance liquid chromatography 茶叶中茶氨酸的测定 高效液相色谱法 Standard Type GBT ICS 67.140.10 CCS X55 Status 现行 Issue Date 2017-11-01 Implementation 2018-05-01 Responsible Dept 中华全国供销合作总社 Drafting Unit N/A