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The establishment of EVISA is funded by the EU through the Fifth Framework Programme (G7RT- CT- 2002- 05112).

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A chemical species containing pentavalent arsenic, sulfide, and methyl groups, as examples: (CH3)AsO2S2−, (CH3)AsOS22−, (CH3)2AsOS, and (CH3)2AsS2− (compare with thioarsenic, thioarsenate, and thioarsenite).


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