Have you tried a literature search at your institution's library? I Googled it and found three articles which are all posted on ResearchGate. There is a search function at the top of the RG page which in all likelihood will find many more articles.
Article New procedures for arsenic speciation: A review
Article Speciation of arsenic using solid phase extraction cartridges
Article SPE HG-AAS method for the determination of inorganic arsenic...
Typical analytical methods used for trace metal analysis are atomic absorption spectrometry (AAS), inductively coupled plasma optical emission spectrometry (ICP-OES) and coupled plasma mass spectrometry. inductive (ICP-MS).
Richard Gneza Correct. To analyze the metals, we need to prefer either AAS or ICP-OES. But to introduce the sample in the system, we need to enrich the metal from the sample. To enrich the metal (arsenic), I think she is preferring SPE (solid-phase extraction) technique. Her query is related to sample preparation and then the method of estimation.
Rida Shakir Nagarajan Krishnan Just a comment to observe regarding activated charcoal: It is "activated" by incubating at high temeperature with a range of metals, amongst which could be As, so what looks like a "clean" wine has just been dosed with any number of metals (V, Cr, Al, Fe and a few more that I can't recall).
While red wine can interefere with interpretations of some visual tests (SO2, Sugar analysis etc), ICP and AAS analysis are very unlikely to be affected in this way.
In my routine ICPMS work, the colour of the wine makes very little difference to it's analysis, as the sample is heated to >5000K in the plasma. Any organic compounds that contribute to the colour are completely destroyed. Plenty of other matrix effects occur, but wine colour is not one of them.
The biggest problem is usually matrix effects: the presence of high concentrations of carbon as alcohol, sugar, organic acids and so on. Dilution with the blank solution works well (nitric acid and ethanol) but it depends on your specific instrumentation as to what concentrations you use, and the ratio you dilute (1:100 - 1:4 etc).