Particle Formation by Supercritical Fluid Extraction and Expansion Process

Table 1

Test results of stearic acid by HPLC-ELSD.

No.	Experimental condition	Peak time (min)	Peak area	Purity (%)
1	Standard substance	5.4	12325	99.8
2	Raw material	5.1	8169.3	66.1
3	SFEE, 15 MPa, 333 K	5.1	6721.4	54.4
4	SFEE, 20 MPa, 333 K	5.2	10504.8	85.1
5	SFEE, 30 MPa, 333 K	5.1	10463.5	84.7
6	SFEE, 35 MPa, 333 K	5.1	8879.6	71.9
7	SFEE, 15 MPa, 348 K	5.1	8715	70.6
8	SFEE, 20 MPa, 348 K	5.1	8530.6	69.1
9	SFEE, 30 MPa, 348 K	5.1	7973.9	64.6
10	SFEE, 35 MPa, 348 K	5.1	9449.2	76.5