METHODS Amodiaquine and hydroxychloroquine(interna standard IS) were analyzed on C_(8) column with a mobile phase of met方法:以羟氯喹为内标,采用C8色谱柱,甲醇-水-三乙胺-磷酸(∶77.∶∶0.,v/v)为流动相,流速:.0mL.