Dear all experts,

I am processing two As K edge EXAFS data shown as following figure. The first shell is As-O. The difference of the As-O peak btween sample As1 and As2 is around 0.03A. Does this represent that the average As-O bond length of sample As1 should be around 0.03 A longer than that of sample As2? Or this depends on fitting results ?

Any help is very appreciated.

Cheers,

Shaofeng

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Shaofeng Wang, Ph.D of Geochemistry

Environmental Molecular Science Group

Institute of Applied Ecology, Chinese Academy of Sciences

Shenyang, 110016, China

wangshaofeng@iae.ac.cn