公开(公告)号：US20060127237A1

公开(公告)日：2006-06-15

申请号：US10524382

申请日：2003-08-14

申请人： Phillip Shaw ,  Philip Marriott

发明人： Phillip Shaw ,  Philip Marriott

IPC分类号： F04B53/00

CPC分类号： G01N1/38 ,  G01N1/10 ,  Y10T436/25625 ,  Y10T436/2575

摘要： The present invention provides a pump device 50 which is usable to dilute a sample 52 before analysis. A first pump 54 pumps the sample to a mixing region 58 where it mixes with a diluent 66. A second pump 64 pumps the diluted sample to the analysis instrument. The flow of the diluent to the mixer is equal to the difference of the flow of the sample to the mixer and the flow of the diluted sample to the instrument. Pumps 54 and 64 are independently controllable by a controller unit which is arranged so that data from the instrument can be used to determine the dilution factor of the sample. Thus, the controller can control this dilution factor in real time, upon receipt of such data from the instrument, by change either one of (or both) the pump's flow rate.

摘要翻译： 本发明提供一种泵装置50，其可用于在分析之前稀释样品52。 第一泵54将样品泵送到混合区域58，在混合区域58中与稀释剂66混合。 第二个泵64将稀释的样品泵送到分析仪器。 稀释剂到混合器的流动等于样品与混合器的流动量和稀释样品流到仪器的流量。 泵54和64可由控制器单元独立控制，所述控制器单元布置成使得来自仪器的数据可用于确定样品的稀释因子。 因此，控制器可以通过改变泵的流量（或两者）中的一个（或两者）从仪器接收到这样的数据来实时地控制该稀释因子。