Cd analysis using 8900 QQQ

Good day everyone, 

I would like to have your thoughts on Cadmium analysis using 8900. 

I ran Cd in He mode using mass 111 but I also analysed Cd in O2 mode, but without a mass shift. The latest was probably a pre-set from one of the pre-set method in massHunter... 

Between the two modes, my QC looks better with O2 even if not in mass shift (I read somewhere that most of the time, O2 is used in mass shift). 

Any advice?

Thanks!

Parents Reply
  • I don't know what is sensitivity in He mode, probably it's the same like in O2 mode. I use He mode for polyatomic ions ( masses between 40-90) so there no need of He for Cd 111. But if you use only He mode, you can use it also for cadmium. If more sensitivity is needed you must add no gas mode. If there some interferences you can use O2 mode. I regularly use O2 mode for arsenic, so it's no problem to add one more element (Cd). 

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