1 Subjects: “...microextraction techniques...”

2 Subjects: “...microextraction...”

3 Subjects: “...bar adsorptive microextraction (BAμE)...”

4 Subjects: “...vortex-assisted dispersive liquid-liquid microextraction...”

5 Subjects: “...solid phase microextraction...”

6 Subjects: “...dispersive liquid-liquid microextraction...”

7 Subjects: “...solid-phase microextraction...”

8 Subjects: “...dispersive liquid–liquid microextraction (DLLME)...”

9 Subjects: “...solid-phase microextraction...”

10 Subjects: “...solid-phase microextraction...”

11 Subjects: “...headspace solid phase microextraction...”