公开(公告)号：USD305684S

公开(公告)日：1990-01-23

申请号：US48448

申请日：1987-05-08

申请人： William J. Kanewske, III ,  Cassandra H. Stern ,  Brian W. Renoe

设计人： William J. Kanewske, III ,  Cassandra H. Stern ,  Brian W. Renoe

公开(公告)号：US5420039A

公开(公告)日：1995-05-30

申请号：US999295

申请日：1992-12-31

申请人： Brian W. Renoe ,  Edward E. King ,  Dale A. Yurkovich

发明人： Brian W. Renoe ,  Edward E. King ,  Dale A. Yurkovich

IPC分类号： C02F1/30 ,  B01J19/12 ,  G01N1/00 ,  G01N1/28 ,  G01N1/44 ,  G01N27/22 ,  G01N35/08

CPC分类号： B01J19/126 ,  G01N1/44 ,  B01J2219/1218 ,  Y10T436/117497 ,  Y10T436/25125

摘要： A process and apparatus for controlled continuous microwave digestion of samples of materials to prepare them for subsequent analyses or other chemical operations. The material to be analyzed, in finely divided form and mixed with digesting liquid, such as a strong acid, is charged as a slug into a flowing liquid carrier stream, usually water, which stream, containing the slug, is passed in a tube through a zone in which the tube and contents are subjected to microwave radiation, to heat the digesting liquid and the material to be digested to promote the digestion. The process and apparatus are modified by inclusion of detecting and controlling steps and corresponding apparatus components to detect a condition of the flowing liquid without physically contacting it, as by determining the dielectric constant of contents of the tube, or a related property of such contents at one or more locations of the tube, usually outside the microwave zone, and controlling operations of the process and apparatus accordingly. Such controlled or controllable operations include charging of subsequent slugs to the system, feeding digested slugs or portions thereof to an autosampler, and backwashing of a filter, and in such operations the controlling device is preferably a microprocessor or computer activated by signals from the detection component and automatically operates appropriate valves, pumps and autosampler. Also within the invention is a procedure for converting a manual process, such as that described to an automatic one.

摘要翻译： 用于受控连续微波消解材料样品以制备其用于随后分析或其他化学操作的方法和装置。 待分析的材料以细分散的形式并与消化液（例如强酸）混合，作为块状物装入流动的液体载体物流中，通常是水，其中流动的物料流通过管道 管和内容物经受微波辐射的区域，以加热消化液体和待消化的材料以促进消化。 通过包括检测和控制步骤以及相应的装置部件来修改过程和装置，以便通过确定管的内容物的介电常数或这些内容物的相关性质来检测流动的液体的状态而不物理接触 管的一个或多个位置，通常在微波区外，并相应地控制过程和装置的操作。 这种受控或可控制的操作包括将后续的塞子充电到系统中，将消化的塞子或其部分进给到自动进样器，以及过滤器的反冲洗，并且在这种操作中，控制装置优选地是由来自检测部件的信号激活的微处理器或计算机 并自动运行适当的阀门，泵和自动进样器。 在本发明中也是将手动过程（例如所描述的过程）转换为自动过程的过程。