The linearity was investigated by adding the racemic compound to the standard L-enantiomer of dopa in the range of 0.1~2.0%. The concentration of D-dopa in levdopa is 0.20% by tested.是什么意思_The linearity was investigated by adding the racemic compound to the standard L-enantiomer of dopa in the range of 0.1~2.0%. The concentration of D-dopa in levdopa is 0.20% by tested.在线翻译_英语_读音_用法_例句