实验室简介 | 人员组成 | 仪器介绍 | 收费须知 | 实验条件说明
电子显微镜实验室是研究所构建的微区微量原位分析系统的重要组成部分。目前实验室拥有两台大型分析仪器:
透射电子显微镜(型号:JEM-2100HR TEM),能从微纳米尺度对天然矿物、地外陨石、生物合成矿物等样品的形貌、晶体结构(如晶格生长和缺陷)和主量元素等进行高精度分析,获取矿物或岩石的形成、变质/变形及其携带的构造信息。
聚焦离子束-扫描电子显微镜(FIB/SEM)系统(型号:Zeiss Auriga Compact),可以实现定点制备高质量的TEM样品、在微纳米尺度上截面精细结构观察(如微纳孔隙)和原位标记等多种功能分析。
扫描电子显微镜(型号:Thermoscientific Apreo),能够做优异的背散射和形貌图像,并可以获得整个薄片的元素mapping。
实验室主任:李金华 研究员 办公室:地1楼 1007 |
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技术人员:谷立新 |
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技术人员:唐旭 |
一. 透射电子显微镜
透射电镜(TEM)可以实现形貌观察、点能谱成分分析、高分辨图像及电子衍射分析。
基本性能指标:
1. 电子枪:六硼化镧(LaB6)灯丝;加速电压: 80,100,120,160,200kV;
2. 分辨率:点分辨率:0.23nm,线分辨率:0.14nm;
3. 附件:X-MAX TEM电制冷能谱仪用于点成分分析。
二. 聚焦离子束-扫描电子显微镜双束系统
聚焦离子束-扫描电镜双束系统主要用于表面二次电子形貌观察、能谱面扫描、样品截面观察、微小样品标记以及TEM超薄片样品的制备。
基本性能指标:
1. SEM: 加速电压0.1 - 30 kV,肖特基场发射灯丝,2.5 nm @ 1 kV 在最佳WD;
2. FIB:加速电压0.5 - 30 kV,带有镓液态金属离子源,分辨率5 nm (30 kV, 1 pA)
3. 附件:
(1)探测器:主要收集二次电子信号实现样品的形貌观察;
(2)OmniProbe AutoProbe200纳米操作机械手,完成TEM超薄片的制备;
(3)X-MAX80电制冷能谱仪(EDS),可实现能谱点、线、面分析;
类别 |
周一 ~ 周五 |
晚上 |
周六、日 |
FIB |
(所外) 1500元/h |
FIB:600元/h |
FIB:800元/h |
SEM |
(所外) 600元/h |
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TEM |
(所外) 600元/h |
200元/h |
300元/h |
备注:1. TEM超薄片制备按样品收费,所外4500元/样品;所内3600元/样品。
2. 晚上和周末做实验须经考试,能独立安全操作仪器,技术过硬,责任心强,且保证两个人同时实验。
3. 提前致电010-82998592进行时间确认,再进入扫码预约,所外人员需提前咨询样品是否适宜上机分析。
预约网址为:点次预约 或者扫描二维码进行预约(新用户在注册时一定要准确填写姓名和电话)。
电子显微镜实验室:Electron Microscopy Laboratory, Institute of Geology and Geophysics, Chinese Academy of Sciences (IGGCAS)
备注:仪器测试分析条件仅供参考以避免雷同。
1. 聚焦离子束显微镜(FIB-SEM)
仪器型号:Zeiss Auriga Compact FIB-SEM
(1)FIB制备TEM样品的条件
Voltage: 5~30 kV; beam current 20 pA~2 nA;
节选自(Gu, Icarus, 2018)供参考:The FIB cutting was conducted with a Zeiss Auriga Compact dual beam instrument equipped with an Omniprobe AutoProbe 200 micromanipulator at IGGCAS. Ion beam conditions for the final thinning and polishing were 5~30 kV high voltage with beam currents of 50 pA ~ 2 nA. The FIB section was prepared to ~100 nm thickness.
(2)只做SEM的条件:
观察形貌用的电压一般是5kV;能谱是10~15kV(参考各自数据图)。
2. 透射电子显微镜(TEM)
The TEM bright-field(BF)/dark-field(DF) imaging, selected area electron diffraction (SAED) and high-resolution transmission electron microscopy (HRTEM) imaging were carried out using a JEOL JEM-2100 TEM operated at 200 kV, electron beam generated from a LaB6 gun at the Institute of Geology and Geophysics, Chinese academy of sciences (IGGCAS).
3. 关于致谢(Acknowledge)
(1)凡出自本实验室的实验数据发表的文章,请务必按照规范在方法或致谢中提及相应的设备和技术人员的支撑工作(仅便于仪器的成果统计和更新换代)。
举例:We thank XXX at the Electron Microscopy Laboratory, Institute of Geology and Geophysics, Chinese Academy of Sciences (EML, IGGCAS), for their efforts to maintain operation in FIB-SEM /(&) TEM experiments.
4. 关于挂名(Co-Author)
(1)对文章挂名不做要求。测试者可根据技术人员的贡献,自行选择。
5. 其他事项
(1)本实验室鼓励各位老师和同学使用电镜多出文章、专利等成果;
(2)由本室实验数据产出的成果越多,实验会予以优先安排。
6. 部分文章列表
(1)Yao Cai, Yuqing Wang, Huangtao Xu, Changqian Cao, Rixiang Zhu, Xu Tang, et al. Nanoscale, 2019. (Top, IF=7.23);
(2)Jing Yang, Chi Zhang, Masaaki Miyahara, Xu Tang, Lixin Gu, Yangting Lin. Geochimica et Cosmochimica Acta. 2019. (NI, IF=4.69);
(3)Z Yao, K Qin, Q Wang, S Xue, et al.Weak B‐Type Olivine Fabric Induced by Fast Compaction of Crystal Mush in a Crustal Magma Reservoir. JGR: Solid Earth. 2019; (NI)
(4)Jiefang Sun,Xueyong Zhang,…Dingshuai Xue, Xu Tang, et al. Ultrasensitive On-Site Detection of Biological Active Ricin in Complex Food Matrices Based on Immunomagnetic Enrichment and Fluorescence Switch-On Nanoprobe. Anal. Chem. 2019. (NI, IF=6.04).
(5)J Li, H Zhang, P Liu, et al. Phylogenetic and structural identification of a novel magnetotactic Deltaproteobacterium strain WYHR-1 from a freshwater lake. Applied and Environmental Microbiology. 2019.
(6)J Li, H Zhang, P Liu, et al. Phylogenetic and structural identification of a novel magnetotactic Deltaproteobacterium strain WYHR-1 from a freshwater lake. Applied and Environmental Microbiology.2019,
(7)Wenyuan Gao; Cristiana L. Ciobanu; Nigel J. Cook; Ashley Slattery; Fei Huang; Daoheng Wang. Nanoscale study of lamellar exsolutions in clinopyroxene from olivine gabbro: Recording crystallization sequences in iron-rich layered intrusions. American Mineralogist .2019;
(8)Meng L, Huang F, Gao W, et al. Multi-stage hydrothermal processes at the Laozuoshan gold deposit in NE China: Insights from textures and compositions of sulfide assemblages[J]. Ore Geology Reviews, 2019: 103275.
(9)Gu Lixin, Bin Zhang, Sen Hu, Takaaki Noguchi, Hiroshi Hidaka, Yangting Lin, The Discovery of Silicon Oxide Nanoparticles in Space-weathered of Apollo 15 Lunar Soil Grains,Icarus, 303 (2018) 47–52
7. 实验室位置
地4楼(食堂北侧)一层
联系电话:010-82998592,邮编:100029
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