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  _  _      ___     _____     __   __   ______   
 | \| ||   / _ \\  |  __ \\   \ \\/ // |      \\ 
 |  ' ||  / //\ \\ | |  \ ||   \ ` //  |  --  // 
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Text this: Removal of Sr(II) ions from aqueous solution by human hair treated with EDTA