ScholarLens Back to search
2009•Chaye kexueRequires access

A Method for Determination of Imidacloprid Residue in Tea with HPLC-UV

Ruyan Hou, Zhu XuJun, Zhengzhu Zhang, Cai Huimei, Xiaochun Wan

Open publisher page 3 citations

Abstract

A method for the analysis of imidacloprid residue in tea by high performance liquid chromatography(HPLC) with UV detector was established.Through the comparation of extract efficiencies of several solvent and the clean-up capacities of different SPE cartridges,the results show that after soaked with water,extracted by acetonitrile,cleaned up with the Envi-Carb/PSA cartridge,imidacloprid was eluted with 6 mL acetonitrile solution from the cartridge and detected with HPLC,the samples was spiked at the level of 0.025~0.250 mg/kg,and the recovery of Imidacloprid range from 92.0%~97.6% with RSD less than 3.8%.Practical determination limit was 0.025 mg/kg.It meet with the analytical requirements to imidacloprid residue in exported tea.The pretreatment method was simple,sensitive and less organic solvent consumption.

About this research paper

What this paper is about

A method for the analysis of imidacloprid residue in tea by high performance liquid chromatography(HPLC) with UV detector was established.Through the comparation of extract efficiencies of several solvent and the clean-up capacities of different SPE cartridges,the results show that after soaked with water,extracted by acetonitrile,cleaned up with the Envi-Carb/PSA cartridge,imidacloprid was eluted with 6 mL acetonitrile solution from the cartridge and detected with HPLC,the samples was spiked at the level of 0.025~0.250 mg/kg,and the recovery of Imidacloprid range from 92.0%~97.6% with RSD less than 3.8%.Practical determination limit was 0.025 mg/kg.It meet with the analytical requirements to imidacloprid residue in exported tea.The pretreatment method was simple,sensitive and less organic solvent consumption.

Why it matters

OpenAlex reports 3 citations for this work. Citation counts describe recorded attention and do not establish research quality.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

A method for the analysis of imidacloprid residue in tea by high performance liquid chromatography(HPLC) with UV detector was established.Through the comparation of extract efficiencies of several solvent and the clean-up capacities of different SPE cartridges,the results show that after soaked with water,extracted by acetonitrile,cleaned up with the Envi-Carb/PSA cartridge,imidacloprid was eluted with 6 mL acetonitrile solution from the cartridge and detected with HPLC,the samples was spiked at the level of 0.025~0.250 mg/kg,and the recovery of Imidacloprid range from 92.0%~97.6% with RSD less than 3.8%.Practical determination limit was 0.025 mg/kg.It meet with the analytical requirements to imidacloprid residue in exported tea.The pretreatment method was simple,sensitive and less organic solvent consumption.

Key concepts: Imidacloprid, Chromatography, Cartridge, Residue (chemistry), High-performance liquid chromatography, Chemistry, Acetonitrile, Detection limit

Related papers

Related paper 1Related paper 2Related paper 3
Back to paper searchBrowse research topicsOriginal source
A Method for Determination of Imidacloprid Residue in Tea with HPLC-UV — Research Paper | ScholarLens