Home / Standards / GB/T 40459-2021 GB/T 40459-2021 Active Qualitative screening of multi plant growth regulators in fertilizers—Liquid chromatography-tandem mass spectrometry method 肥料中多种植物生长调节剂的定性筛选 液相色谱-质谱联用法 Standard Type GBT ICS 65.080 CCS G20 Status 现行 Issue Date 2021-08-20 Implementation 2022-03-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A