T/SDAQI 058-2021 Determination of Plant Growth Regulators in Water-soluble Fertilizers by Gas Chromatography-Mass Spectrometry (GC-MS)
T/SDAQI 058-2021 Determination of Plant Growth Regulators in Water-soluble Fertilizers by Gas Chromatography-Mass Spectrometry (GC-MS)
Basic Information
Scope
Scope: This document is applicable to the determination of various plant growth regulators in water-soluble fertilizers. When the sample weight is 0.5g, the detection limit of aminoethoxyphenylacetic acid is 0.2mg/kg, and the quantification limit is 0.8mg/kg; the detection limit of thidiazuron and fludicarbazone is 0.5mg/kg, and the quantification limit is 1.5mg/kg; the detection limit of chlorophenylacetic acid and zidane is 0.5mg/kg, and the quantification limit is 1.5mg/kg; Main technical content: This document specifies the gas chromatography-mass spectrometry method for the determination of five plant growth regulators, namely aminoethoxyphenylacetic acid, chlorophenylacetic acid, thidiazuron, zidane, and fludicarbazone in water-soluble fertilizers.