ICP-MS 内准溶液, ICP-MS Internal Standard solution

多元素QC-21检测标准溶液, Multi-Element QC-21 Check Standard Solution

氯化钠晶体光学盘, Sodium chloride crystal optic disc

氟化钙晶体光学盘, Calcium fluoride crystal optic disc

溴化钾晶体光学盘, Potassium bromide crystal optic disc

氯化钠晶体光学盘, Sodium chloride crystal optic disc

氯化钠晶体光学长方体块, Sodium chloride crystal optic rectangle

玛瑙研钵和棒, Agate Mortar and Pestle

标准样品管, Standard Sample Tube

USA标准分子筛, USA Standard Sieve