ETP multipliers

[WK]

Hi
I use Saturn 2000 and wondered if anyone uses ETP (SGE) replacement multipliers. How do you get on with them?
Thanks in advance
WK

[rubyfan]

We just installed an ETP multiplier in our Saturn 2000 mass spec... It tuned without any issues but I really can't comment just yet on sensitivity versus the old multiplier. The column I installed turned out to be high bleed and I'm getting ready to install another by the end of the week. I will let you know how the sensitivity looks. I'll do the 1pg/uL OFN injection and report back.

[WK]

Thanks for the reply rubyfan

[rubyfan]

I must say, the ETP multiplier works great!! I recently performed a 1uL injection of 600 femtograms/uL dimethylmethyl phosphonate, a nerve agent surrogant, and saw decent detection by the Saturn 2000 in EI full scan mode. So evidently the multiplier is working well, considering it's a 10 year old system! I must say, we've always gotten significantly better limits of detection on our older Varian than our significantly newer Agilent GC-MS.