[Gasification] combustion gas analyzers, advice needed

[jim mason]

i need to start assembling some test equipment for continued gasifier
development.  a core component is of course a combustion gas analyzer.
 i'm curious what the researchers here have decided is the best value
investment on this front.

below are a couple links to combustion analyzers.  are any of these
clearly better choices than others in your experience?  to me is seems
important to have one that will do NOx and heavy HCs, not just CO, O2
and CO2.

http://www.professionalequipment.com/category.asp?id=101&start=21

http://www.tsi.com/Category.aspx?Cid=149

thanks,

j