(4-chlorophenyl)(pyridin-2-yl)methanol

[praveenpaliwal]

Hellow ,

we are using GC analysis of this compound Our column is DB-17 , we dissole this compound in 1% in Acetone . Oue GC condition is
Oven 240
Injecter / Detector(FID) 250/250 degree
Nitrogen used as carrier and it's pressure is 5 psi

After some injection we does not found any responce of our compound on DB-17 we still not undrstand the problem yet why the responce of compound is disappers .

Thanks

[chromatographer1]

Is the compound in a salt form?

best wishes,

Rod

[praveenpaliwal]

Compound is not in salt form because this compound give proper responce in DB-17 and custmer also use DB-17 but main problem is that this compounds responce suddenly disappears from DB-17 while this compound give proper responce on DB-1701

why DB-17 does not responding this compound whereas Ist time DB-17 gave us proper responce

thanks
praveen

[AICMM]

Praveenpaliwal,

If you trim 20 or 50cm off the front of the column, does it come back? Sounds like pretty typical nitrogenous compound performance to me....

Best regards.

[praveenpaliwal]

No sir we cleaned the detector assmbly , cut the both end of column conditioning it properly but stll we got very poor responce, U suggest us to cut 30-50 cm of column we cut the column near about 5 cm on both end . the 30 - 50 cm is very high for cutting isn't it ?

regards

praveen

[chromatographer1]

Has the analyte been stored without concern for exposure to air?

best wishes,

Rod

[chromatographer1]

Has the analyte been stored without concern for exposure to air?

best wishes,

Rod