Dear All,
Which one is more accurate, favorable, time-consuming, and cost effective for measuring multiple atoms, ICP or AAS?
What are the pros and cons?
Thanks in advance
ICP is the method of choice when you want to measure multiple elements.
See the discussion on Research Gate some time ago
https://www.researchgate.net/post/Atomic_Absorption_Spectroscopy_vs_ICP-MS
or read
http://oliver.chemistry.ucsc.edu/122/Lab5%20Handout.pdf
Dear Sir. Concerning your issue about the difference between Inductively Coupled Plasma (ICP) and Atomic Absorption Spectroscopy (AAS) . I think the following below links may help you in your analysis:
https://www.slideshare.net/GamalAbdulHamid/icp-aas-comparison-74892920
http://image.sciencenet.cn/olddata/kexue.com.cn/bbs/upload/15147ICP_or_AA.pdf
https://www.sciencedirect.com/science/article/pii/0048969788901416
https://pubs.acs.org/doi/abs/10.1021/es9502482
Thanks
In a nutshell:
AAS is cheaper but can only determine the concentration of a particular element.
ICP-MS is more expensive but faster, more sensitive and can analyze multiple elements simultaneously (can detect down to PPT levels!).
ICP is an atomic emission technique and can be coupled to an optical spectrophotometer (ICP OES) or Mass spectrometry (ICP-MS). He is multielementar.
Atomic Absorption uses the principle of light absorption, it is usually monoelement (in the market there are some simultaneous absorptions as well as graphite furnaces with continuous source).
Generaly, the LOD for this tecniques are ppm, but the axial view in ICP are more sensitivy than AAS
For multi elements determination ICP-OES and ICP-MS are recommended instruments because AAS is recommended for mono-element determination
ICP-MS is expensive instrument so ICP-OES coupled with ultrasonic nublizer is the recommended tool
Check the main differences between major elemental techniques below :
http://oliver.chemistry.ucsc.edu/122/Lab5%20Handout.pdf
ICP is a better choice for multiple element analysis. It has been used for a research I was involved in. In fact all known elements were analyzed.
ICP-MS is more accurate, favourable, less time-consuming, and not cost-effective for measuring multiple atoms. In comparison, AAS is less accurate, less favourable, more time-consuming and more cost-effective.
In comparison to ICP, AAS is cheaper but can only determine the concentration of a single element. But ICP-MS is faster, more sensitive and can handel multiple elements.