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核磁共振仪

发布时间:2017-03-03 22:10:48 编辑:admin

型号: DMX 500;生产厂家:德国 BRUKER 公司

核磁共振可用于生物、化学、物理、材料、医学等学科的研究工作,除常用的测定有机化合物的结构、构型外,还可从原子、分子水平上揭示材料微观结构和功能间的关系。如催化剂表面活性中心及其与反应分子的相互作用机制;新材料制备过程中,各种元素的原子相互结合的机理;高分子材料中化学结构、晶态与非晶态、链运动、链结构的结构信息;纳米晶体或原子簇的聚集状态及导致其特殊的物理性质和产生量子化效应的原因;生物大分子的二级、三级结构等等。本实验室可进行1H13C31P29Si27Al15N17O等核的液体高分辨、固体高分辨和固体宽谱的一维及多维核磁共振实验,可进行13C1H核的各种相关谱。

性能与特点:

1)最高工作频率: 500MHz(1H).

2)磁场强度: 11.7T (超导)

31H 分辨率: 1%CHCl3:0.25Hz ,

4)灵敏度: 0.1% 乙苯:S/N=350:1

检测对象和内容:

1)可做 1H, 13C(频率范围: 109Ag-31P) 等核的一维及多维核磁共振。

2)测定有机化合物的结构,跟踪反应历程,研究反应机理。

3)可做变温实验,变温范围: -100 ~ 150

3)可测定分子量在一万以下的蛋白质的各种一维及多维核磁共振图谱

5测定高分子材料的序列和组分比例,测定端基含量的下限可到 1%

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