Hello everyone, I'm trying to figure out the radical initiator which can be used in QQQ MS(API-4000Q).

We are modifying the instrument which have the UV system and trying to import appropriate radical initiator into the Q2.

But I have searched on internet, most of the radical nitiator is non-volatile aromatic compound which I think can not be loaded into the MS.

Is anyone here has some good suggestions?

And it's better to provide the excitation wavelength of the radical initiator.

Thank you very much.