Flow-Batch Sample Preparation for Fractionation of the Stress Signaling Phytohormone Salicylic Acid in Fresh Leaves

Figure 1

Diagram of the flow-batch system applied to SA fractionation on plant leaves. (a) Microwave-assisted extraction and alkaline hydrolysis. (b) Sequential injection chromatographic system. PP: peristaltic pump; SP1 and SP2: syringe pumps; RV1 and RV2: 8-way rotary valves; HC1 and HC2: holding coils.