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1.发明授权公开(公告)号：US06339965B1
公开(公告)日：2002-01-22
申请号：US09344807
申请日：1999-06-25
IPC分类号： G01N122
CPC分类号： G01N1/405 , G01N1/2252 , G01N2001/2264
摘要： A process for sampling aldehydes and ketones contained in diluted exhaust gases from thermal combustion engines uses a sampling unit that has a specific trapping circuit and a simulation circuit that simulates the specific trapping circuit. The specific trapping circuit and the simulation circuit are arranged in parallel. The diluted gases are passed for some time in the simulation circuit (5) before they are passed into specific trapping circuit wherein aldehydes and ketones are trapped.
摘要翻译： 用于对来自热燃烧发动机的稀释废气中所含的醛和酮进行取样的方法使用具有特定捕集电路的采样单元和模拟特定捕集电路的模拟电路。 具体的捕获电路和仿真电路并联布置。 稀释的气体在模拟电路（5）中通过一段时间后，再进入特定的捕集回路，其中醛和酮被捕获。
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公开(公告)号：US06513397B2
公开(公告)日：2003-02-04
申请号：US10011737
申请日：2001-12-11
IPC分类号： G01N122
CPC分类号： G01N1/405 , G01N1/2252 , G01N2001/2264
摘要： A unit for sampling aldehydes and ketones contained in diluted exhaust gases from thermal combustion engines has a specific trapping circuit and a simulation circuit that simulates the specific trapping circuit. The specific trapping circuit and the simulation circuit are arranged in parallel so that the diluted gases can be passed for some time in the simulation circuit (5) before they are passed into the specific trapping circuit wherein aldehydes and ketones are trapped.
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