Page 1 of 1

174 95 ratio in BFB tune fail

Posted: Tue Jun 26, 2012 5:05 am
by Lyne
Hi, I am performing BFB tuning for my TD-GCMS. I keep getting above 100% for my 174/95 ratio. Is there a way to lower it to between 50-100%? I read somewhere that by increasing the ion energy, the ratio could pass? Is "ion energy" the "EIEnergy" in the agilent manual tune window? If so, how much should I increase??

Re: 174 95 ratio in BFB tune fail

Posted: Tue Jun 26, 2012 10:57 am
by Bigbear
Yes, you can ramp the emission current and pick the max. Also try to get 131 and 219 to between 40- 50% of 69 in your manual tune.

Re: 174 95 ratio in BFB tune fail

Posted: Tue Jul 03, 2012 7:09 am
by Lyne
Hi Big bear, thanks for the help! Much appreciated!!