含羧基的聚乙烯醇胺肟螯合纤维的合成及对钯的吸附

利用（６０）ＣＯγ射线预辐照接枝和胺肟化反应合成了含羧基的聚乙烯醇胺肟（ＰＶＡＡＯ－ＡＡ）螯合纤维。预辐照剂量和接枝单体的比率对接枝率、胺肟基因含量和吸附容量有影响。研究了ＰＶＡＡＯ－ＡＡ螯合纤维对钯的吸附性能。

An Ile93Met substitution in the UCH-L1 gene is not a disease-causin g mutation for idiopathic Parkinson's disease

To ascertain whether a coding mutation (Ile93Met) in ubiquitin carbo xy terminal hydrolase (UCH L1) gene plays a role in idiopathic Parkinson's di sease (IPD) Methods Polymerase chain reaction restriction fragment length polymorphism assay (PCR RFLP) was used to distinguish the wild type (two DNA fragments of 34 and 126 bp ) from the variant allele (three fragments of 34, 60 and 66 bp) because the m utation created a new site for restriction endonuclease BsmF1 DNA was isolated from various blood samples using a phenolchloroform extraction Results Ile93Met substitution was found neither in PD patients nor in controls Conclusions Our study suggested that Ile93Met of UCH L1 gene did not influence risk of IPD

γ—羧基—γ—甲基庚二酸的合成

本试验是由甲乙酮与丙烯腈反应,首先在亚甲基上进入两个氰乙基,得到γ-乙酰-基-γ-甲基庚二腈,再经硷性水解得到γ-乙-酰基-γ甲基庚二酸,后者再经卤仿反应便得到氯仿和结晶的γ-羧基-γ-甲基庚二酸。