声明
1. Introduction
2. Materials and method
2.1Chemicals and reagent
2.2 sample preparation
2.2.1 Preparation of blank plant sample and spiked plant sample
2.2.2. Preparation of microsyringe extractor
2.3 Instrumental Analysis
3 .Results and Discussion
3.1 Optimization of the microsyringe extractor
3.1.1 The choice of various polar targets
3.1.2 Optimization of liquid phase chromatogram condition of targets
3.1.3 Optimization of ultrasonic extraction conditions
3.1.4 Optimization of elution solvent kinds and volumn
3.1.5 Optimization of the concentration conditions
3.2 Performance of the method
3.3 Real plant sample
4. Conclusion
致谢
参考文献
附录 A