A rapid liquid chromatography method for determination of glufosinate residue in maize after derivatisation

作者：Qian Kun; He Shun; Tang Tao; Shi Tianyu; Li Jianqiang; Cao Yongsong^*

来源：Food Chemistry, 2011, 127(2): 722-726.

DOI：10.1016/j.foodchem.2010.12.132

• Glufosinate
• Liquid chromatography
• Maize samples
• UV detection

A rapid liquid chromatographic method for glufosinate analysis in maize samples after derivatisation has been developed. The labelled glufosinate was separated on a Kromasil C(18) column (250 mm x 4.6 mm, 5 mu m) and UV detection was applied at 360 nm. The optimisation of derivatisation conditions and the influence of different ion-pair reagents on the separation were discussed. The method linearity correlation coefficient was 0.9998 in concentrations ranging from 0.1 to 20 mg L(-1). The level of quantification was set to 0.02 mg kg(-1), and reached pesticide EU-MRLs for glufosinate in the maize samples. The proposed method was applied to the quantitative determination of glufosinate in samples with recoveries of 98.0-100.5% and RSDs of 2.13-4.13%.

• 出版日期2011-7-15
• 单位中国农业大学