论文部分内容阅读
1，1＇－乙叉双（L-色氨酸）（EBT）是L-色氨酸制剂（W）中的一种杂质，据研究者认为是嗜酸细胞增多性肌痛综合征的发病原因。本文报道了用HPLC法测定W中的EBT。EBT标准液制备将12mgEBT溶于100mL0．lmol．L－‘醋酸三动铰缓冲液（pHg．对中，制成储备液于st存放。1．2us·uL‘E
1,1’-Ethylidenebis (L-tryptophan) (EBT) is an impurity in L-tryptophan preparation (W), which is considered by researchers to be an eosinophilic myalgia syndrome the reason. This paper reports the determination of EBT in W by HPLC. Preparation of EBT standard solution 12 mg EBT was dissolved in 100 mL0. lmol. L ’acetate three hinges buffer (pHg. Right, made of stock solution stored in st.1.2us · uL’E