VCM REPRODUCINLITY by GC-HS

[dhyanivs]

I am trying to do VCM analysis with GC-HS. The standard I use is 200uG/ml in Methanol from supelco. But I am unable to get good precision for standard injection.
Area varies very much from injection to injection.
Can anyone help me in this regard

[chromatographer1]

Have you called Supelco technical service? 800-359-3041 or
techservice @ sial.com

or

email me at rgeorge at sial.com

I am experienced in HS analysis and should be able to answer your questions which would take too much time and space here in this forum.

chromatographer1