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Flame AAS

  • 18-12-2010 2:40pm
    #1
    Blue Badger
    Registered Users, Registered Users 2 Posts: 165 ✭✭


    Exactly how sensitive are they? How small a sample can they detect?


Comments

  • #2
    El Siglo
    Registered Users, Registered Users 2 Posts: 3,803 ✭✭✭El Siglo


    Blue Badger wrote: »
    Exactly how sensitive are they? How small a sample can they detect?

    Varian (and I would imagine some of the other companies) tend to have pdfs floating about like this one which might answer your question.


  • #3
    210
    Registered Users, Registered Users 2 Posts: 186 ✭✭210


    If your looking at an AA then you must be in a museum - appologies to any opperators out there ! ICP is the new kid in town for metal analysis. Check out the link below.


    http://las.perkinelmer.com/Content/TechnicalInfo/TCH_ICPMSThirtyMinuteGuide.pdf


  • #4
    El Siglo
    Registered Users, Registered Users 2 Posts: 3,803 ✭✭✭El Siglo


    210 wrote: »
    If your looking at an AA then you must be in a museum - appologies to any opperators out there ! ICP is the new kid in town for metal analysis. Check out the link below.


    http://las.perkinelmer.com/Content/TechnicalInfo/TCH_ICPMSThirtyMinuteGuide.pdf

    You must mean ICP-MS in that case. It's a great technique alright, however the analysis and equipment is rather expensive so AAS is still a useful piece of technology. ICP-OES is also pretty class but again it's not available everywhere and you need a fair bit of argon and nitrogen to run it.


  • #5
    boxer.fan
    Registered Users, Registered Users 2 Posts: 748 ✭✭✭boxer.fan


    To answer the question, AAS can detect in the parts per million range (ppm). If using graphite furnace AAS they can detect in the parts per billion range(ppb).


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