《Table 2 Recovery data under different spiked concentrations》

  提示：宽带有限、当前游客访问压缩模式

本系列图表出处文件名：随高清版一同展现

《Comparative Study on the Effect of Extractant on the Detection of Imidaclothiz Residue in Tea》

1. 获取 高清版本忘记账户？点击这里登录

1. 下载图表忘记账户？点击这里登录

A certain amount of tea sample was weighed，and added with standard solutions at different concentrations，respectively，and the mixtures were prepared into spiked samples with concentrations of0.5，1.0，1.5，2.0，3.0，5.0 and 10.0 mg/kg，respectively.Three parts of each sample were weighed and extracted with n-hexane，acetonitrile，acetone，n-hexane-acetonitrile（volume ratio at1∶1），acetonitrile-acetone（volume ratio at 1∶1），and n-hexaneethyl acetate（volume ratio at 1∶1），respectively，determination was performed according to\""Selection of detection wavelength\""，and the recovery of each spiked sample was calculated，as shown in Table 3.It could be seen from Table 3 that the relative standard derivation of the recovery values of the three parts of sample extracted with each extractant was smaller than 10%；and the recovery values of various extractants were in the range of 80%-110%，and the average recovery obtained with n-hexane-ethyl acetate was the highest.