(+)-alpha-phenylglycine　are　significant　contaminants　at　pharmaceutical　intermediates　production.　To　study　processes　for　the　destruction　of　contaminant　L(+)-alpha-phenylglycine　in　acid　aqueous　solution　we　have　investigated　the　transient　species　using　both　laser　flash　photolysis.　The　OH　center　dot　reaction　with　L(+)-alpha-phenylglycine　process　was　investigated　and　formed　polymer.　Furthermore,　the　results　of　steady-state　analysis　suggested　that　L(+)-alpha-phenylglycine　removal　was　found　to　be　more　efficient　with　increasing　applied　dose.　L(+)-alpha-phenylglycine,　decreased　by　44.50%,　using　a　dose　of　14kGy.