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活性炭,有机溶剂中吸附热检测产品配置单(差示扫描量热)

  • 应用领域: 石油/化工
  • 检测样品: 化学试剂/助剂
  • 检测项目:理化分析
  • 浏览次数:53 次
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  • 发布时间:2019-10-10
  • 参考标准:none
A common technique for sampling organic solvents in workplace air is the use of preconcentration of vapors on adsorbents. The most widely used adsorbent is activated carbon, due to its large sampling capacity. After desorption (thermal or displacement by other solvents such as carbon disulfide), analysis is made by gas chromatography. In order to avoid breakthrough, the collected amount is usually <10% of the maximum capacity (total pore volume).
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A common technique for sampling organic solvents in workplace air is the use of preconcentration of vapors on adsorbents. The most widely used adsorbent is activated carbon, due to its large sampling capacity. After desorption (thermal or displacement by other solvents such as carbon disulfide), analysis is made by gas chromatography. In order to avoid breakthrough, the collected amount is usually <10% of the maximum capacity (total pore volume).

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