Chromatography Forum

sir

I am analysis VOC by GCMS. My calibration rage is 50,100,200,500,800 ppb. I shall be thankfull if you pls let me know what should be my intertnal standard concentration and surrogate concentration. My AQC is 400ppb. Similarly my SVOC calibration rane is 200,400,600,800,1000ppb. Also i would like to know what con. of internal and surrogate i have to use for quantification. My AQC is 4000ppb.

waiting for the reply

thanks
shabhari

shabharichem,

Go look at EPA method 8260 or 8270 on the EPA web site. You can also find these methods on Accustandard's web site. This will give you a very good starting point for your needs.

Best regards,

AICMM