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气相色谱-质谱联用检测硅橡胶可提取液中的环硅氧烷 被引量:3
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作者 张晗 诸磊 《化工管理》 2021年第3期101-102,共2页
研究硅橡胶胶管的可提取液中几种常见的环硅氧烷类物质的检测方法。采用50%乙醇提动态抽提,获得可提取液,采用气相色谱-质谱联用对环硅氧烷类物质进行分离、鉴定和分析。建立出了合适的方法来对六甲基环三硅氧烷、八甲基环四硅氧烷、十... 研究硅橡胶胶管的可提取液中几种常见的环硅氧烷类物质的检测方法。采用50%乙醇提动态抽提,获得可提取液,采用气相色谱-质谱联用对环硅氧烷类物质进行分离、鉴定和分析。建立出了合适的方法来对六甲基环三硅氧烷、八甲基环四硅氧烷、十甲基环五硅氧烷及十二甲基环六硅氧烷四种目标环硅氧烷进行定性和定量,待测样品的可提取液中均未检出前述环硅氧烷。首次使用50%乙醇水溶液对硅胶管中的环硅氧烷类物质进行循环抽提提取,并使用气相色谱-质谱联用法建立环硅氧烷的检测方法,经过检出限、定量限、精密度、中间精密度、准确度、耐用性及稳定性对检测方法进行考查,检测方法是有效的,待测样品中未检出四种目标环硅氧烷。 展开更多
关键词 硅胶管 可提取液 环硅氧烷 气相色谱-质谱联用
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Special Topic on Ionic Liquids: Energy, Materials & Environment 被引量:2
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作者 Suojiang Zhang Buxing Han Jianji Wang 《Science China Chemistry》 SCIE EI CAS CSCD 2016年第5期505-506,共2页
Ionic liquids (ILs) are organic salts with low melting points, which have many unusual properties like negligible vapor pressure, good thermal stability, non-flammability, wide liquid range and electrochemical windo... Ionic liquids (ILs) are organic salts with low melting points, which have many unusual properties like negligible vapor pressure, good thermal stability, non-flammability, wide liquid range and electrochemical window, and excellent solvation power for both organic and inorganic substances. The unique characteristics of ILs endow them with great potential for applications in different fields including chem- ical reactions, extraction and separation, material science, renewable energy, environment, and photoelectric trans- formations. Their properties can be tuned to suit various applications by changing the structures of the cations and/or anions. 展开更多
关键词 CHEMISTRY Synthesis (chemical)
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