The synthetic medium of optical N acylalanines was N (2,6 xylyl) alanine.It was reacted with 1 menthol and prepared into its menthol esters which were purified by TLC, resolved and determined by HPLC.
If you have any idea,please let me know,we holp can resolve this problem let you satisfaction.For the furs,because the fur are got from different position in one racon so will have difference.
The method of two point probe focus is proposed to resolve the proble m of the jog of focus, and unitization processing is used to eliminate the chang e of laser power.