Among the rosa roxburghii tratt juice group , SOD-enriched rosa roxburghii tratt juice before intervention group and the control group , the levels of urine arsenic were ( 76.55 23.02 ) , ( 72.60 25.91 ) and ( 26.33 11.30 ) g/g Cr respectively and IgG were ( 11.31 1.68 ) , ( 11.35 1.94 ) and ( 9.23 1.75 ) g/L respectively .