Detection of soybean and grain/pesticide residue parameters

This standard specifies a high performance liquid chromatography method for the determination of fluconazole residues in soybeans and grains. This standard is applicable to the determination of fluconazole residues in soybeans and grains. The detection limit of this method is 0.02 mg/kg; The linear range is from 5 ng to 320 ng. The principle sample is extracted with organic solvents under acidic conditions, and the interfering substances are removed through liquid-liquid distribution and silica magnesium adsorption column purification. The determination is carried out using high-performance liquid chromatography ultraviolet detector. Qualitative analysis is carried out based on the retention time of the chromatographic peak, and the peak height is determined using the external standard method

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