8Tak [guch i, Daigaku, Okahe, et al. Optically active 2- (4-hydroxyphenyl)glycine[P]. JP:7 871 036, 1978.
9Yamada. Preparation of D-p-hydroxphenylglycine [J].Agric Biol Chem, 1978,42:1 521-1 526.
10SELEMENEV V F, ZAGORODNI A A. Infrared spectroscopy of ion-exchange resins : determination of amino acids ionic form in the resin phase [ J ]. Reactive and Functional Polymers, 1999,39( 1 ) :53-62.