Atomic Absorption Spectroscopy vs ICP-MS... which one is best...
AAS is cheaper but you can only quantitate 1 element at the time (>1 ppm). ICP-MS uses 'very pure' and expensive reference standards.
It depends a lot on your sample matrices, LOQ, extraction techniques. If you have a lot of water samples needing Ca and Mg levels I would use AAS as my work-horse and ICP for 'special' samples.
AAS - more accurate and cheap but time consuming;
ICP - much faster but less accurate and more expensive.
Cheers!
MF
ICP-MS is the best because it is faster and more sensitive.
ICP-MS can detect up to PPT level and can analysis numerous metal element simultaneously.
See attached!!!
Obviously ICP-MS is more sensitive and simultaneous but very expensive. It depend what you want to do. Using ICP-MS for analysis needs proficient operator. Operating AAS and processing it's data is much easier.
thank you all for your esteemed help to understand the concept.
I agree with Bruce Neagle. There is some correlation between ICP MS data and AAS data.
Hello, what are the similarities between ICP-MS and FAAS? Thank you!
None! Only the element identification and the concentration is the same. The ICP uses an MS (mass spectrometric detector) while AAS uses a UV-Visible spectrophotometer as a detector. The ICP (plasma) has a higher flame temperature so ALL the atoms are in emission while the AAS has a much cooler flame and thus atoms can either emit or absorb radiation.
There is no other similarities? maybe In the atomization of the sample or something else? Thank you
Check facts below:
http://oliver.chemistry.ucsc.edu/122/Lab5%20Handout.pdf
ICP-MS is more expensive but faster, more sensitive and can analyze multiple heavy metals from water, soil and tissues.
The ICP-MS is 1000 times better then AAS as the sensitivity is 1000 times more. It also has more throughput then AAS and can perform multiple element in a single run. The application of AAS is limited to few elements but ICP-MS can analyze maximum elements in the periodic table.
Is it possible to compare blood samples, tested via AAS , with blood samples tested via ICP- MS methods?
Thank you very much in advance!
Yes! Just remember you must use an ultrapure ICP standard as a reference point.
@bruce neagle,
Thank you for your fast response! How can I get this ultra pure ICP standard while having a Retrospektive study?
You can order this ultrapure ICP standard from any chemical supply house (it was typically used for ppb concentations of harmful elements in environmental samples). Just compare it to the standard you used and it will make your sample results comparable.
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