ðɪs mˈoʊd ʌv ˈækʃən mˌeɪks ðˌɛm jˈuːsfəl fɔːɹ ɐfˈɪnᵻɾi kɹoʊmɐtˈɑːɡɹəfi tə sˈɛpɚɹˌeɪt θˌaɪoʊlkəntˈeɪnɪŋ kˈɑːmpaʊndz fɹʌm kˈɑːmplɛks mˈɪkstʃɚz.
This mode of action makes them useful for affinity chromatography to separate thiol-containing compounds from complex mixtures.