Determination of Glyphosate in Fresh Bamboo Shoot by Solid Phase Extraction-Ion Chromatography

Experiments were conducted on determination of glyphosate in fresh bamboo shoot by solid phase extraction ion- chromatography. Extraction was implemented by high speed vortex with extractant of ultrapure water, centrifuged and then purified by florisil column. Separation was made by high capacity anion exchange column, with potassium hydroxide solution as mobile phase with isocratic elution, injection volume of 25 μL, column temperature of 40℃ and flow rate of 1.0 ml/min. The recovery rate of 0.2,,1.0 and 2.0 mg/kg of glyphosate was 88.7%, 91.4% and 91.5%, and the relative standard deviation was 1.3%-2.5% (n = 6).