供货周期: | 一周 |
品牌: | |
规格: | Sharp-edged gold particles on 1000 mesh grids |
货号: | 640 |
CAS号: |
Clear, sharp, high contrast images easy to stigmate and use for checking resolution.
Sharp-edged gold particles on 1000 mesh grids attached to any specimen mount of the group listed below.
This specimen is used to:
1. determine the presence of astigmatism and allow correction
2. determine instrument resolution.
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