I have a question about VRX-1. in my lab, we use VRX-1 to analyze BTEX. NOW,we try to analyze VOC using the same column. when I tried 0.5ppb, the compound cis1,3-dichloropropene,trans1,3-dichloropropene are very low respond. The programme is initial temp 45, ramp1 18degree per min to 190 degree, ramp2 25degree, to 250 degree. split ratio is 20:1
thank you