Organic Chemistry International / 2013 / Article / Tab 2

Research Article

Microwave-Assisted Extraction Studies of Target Analyte Artemisinin from Dried Leaves of Artemisia annua L.

Table 2

Influence of mesh, solvent volume, time, and power of microwave irradiation on recovery of artemisinin.

SolventMaterial to solvent ratioParticle size
(Mesh)
Irradiation time/cycle
(Second)
Irradiation power (Watt)% Mean artemisinin recovered (±SD)
(% dry weight)b  n = 3
% RSD

Acetonea100 mg : 5 mL14601600.63 (±0.01)1.59

Acetone100 mg : 5 mL601600.64 (±0.02)2.40
25603200.64 (±0.02)3.13
1201600.69 (±0.01)0.84

Acetone100 mg : 10 mL601600.71 (±0.01)1.63
25603200.69 (±0.02)2.90
1201600.73 (±0.01)1.37

Taken from Table 1 as a control value to analyze the effect of mesh size on artemisinin recovery.
Two cycles of extraction were carried out in each case.