| 硫化锌胶体标准溶液稳定性研究 |
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| 引用本文： | 应向东,李敏珍. 硫化锌胶体标准溶液稳定性研究[J]. 化学分析计量, 2012, 21(6): 76-78 |
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| 作者姓名： | 应向东 李敏珍 |
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| 作者单位： | 1. 浙江省丽水市质量技术监督检测院,浙江丽水,323000
2. 浙江省台州市玉环县质量技术监督检测中心,浙江玉环,317600 |
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| 摘 要： | 采用去离子除氧水，由淀粉、乙酸锌、氯化钠、硫化钠等配制了硫化锌胶体标准溶液。实验结果表明，硫化锌胶体标准溶液的吸光度与硫化钠标准溶液基本一致，可以替代硫化钠标准溶液。采用t检验对硫化物胶体标准溶液稳定性进行了检验，表明该法配制的硫化锌胶体标准溶液在室温下可稳定保存2个月，解决了硫化物标准溶液只能现配现标现用的问题。
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| 关 键 词： | 硫化锌胶体标准溶液 稳定性 淀粉 乙酸锌 硫化钠 |
Stability of Zinc Sulfide Colloid Standard Solution |
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| Ying Xiangdong , Li Minzhen. Stability of Zinc Sulfide Colloid Standard Solution[J]. Chemical Analysis And Meterage, 2012, 21(6): 76-78 |
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| Authors: | Ying Xiangdong Li Minzhen |
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| Affiliation: | Ying Xiangdong(Lishui Academy of Quality Supervision,Zhejiang Province,Lishui 323000,China) Li Minzhen(Yuhuan Quality &Technical Supervision and Inspection Center,Yuhuan 317600,China) |
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| Abstract: | The zinc sulfide standard solution was prepared by using deionized and deoxygenated water, starch, Zn（Ac）2, NaCl, Na2S. The results showed that the absorbance of zinc sulfide colloid standard solution was in accordance with that of sodium sulfide standard solution, the zinc sulfide colloid standard solution can replace sodium sulfide standard solution. The t test for sulfide colloid standard solution stability test indicated that the preparation of zinc sulfide colloid standard solution at room temperature can be stable saved for 2 months. The problem of only using fresh standard solution for analysing sulfide was dissolved. |
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| Keywords: | zinc sulfide colloid standard solution stability starch Zn（Ac）2 Na2S |
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