硫化物水样的稳定性研究

Researching the stability of sulfide in liquid

对硫化钠水样的制备及其稳定性进行了研究和讨论，找到一种长期稳定保存硫化钠标准溶液及硫化物标准样品的有效方法。

This paper introduces the research and discussing about the preparing the sulfide sample and it's stability, then get a effective method to store the Na 2S standard solution and sulfide reference materials for a long time