公开(公告)号：US3787291A

公开(公告)日：1974-01-22

申请号：US3787291D

申请日：1971-11-29

Applicant: BECKMAN INSTRUMENTS INC

Inventor： DEURINGER R ,  RAY R ,  STERNBERG J

IPC: G01N31/00 ,  G01N33/487 ,  G01N35/00 ,  G01N35/10 ,  C12K1/10

CPC classification number: G01N35/00 ,  G01N2035/00534 ,  G01N2035/1025

Abstract: An apparatus for batch analysis of liquid samples wherein syringes are employed for delivering repeatable volumes of reagent to a cell prior to the addition of a sample and for withdrawing liquid from the cell after analysis thereof. Sensing means, such as a polarographic oxygen sensor, is mounted in the side wall of the cell with it sensing end contacting the liquid therein. A stirring element is positioned within the cell and rotated about the vertical axis of the cell so that a high tangential stirring force is produced to promote mixing of sample with reagent and to optimize sensor performance, yet only small sample volumes are required. The apparatus is particularly suited for rate sensing batch analysis of biological fluids such as blood or urine.

Abstract translation: 用于液体样品的批量分析的装置，其中使用注射器在加入样品之前将可重复体积的试剂递送到细胞，并在分析之后从细胞中取出液体。 诸如极谱氧传感器的感测装置安装在电池的侧壁中，其感测端与其中的液体接触。 搅拌元件位于电池内并围绕电池的垂直轴线旋转，从而产生高切向搅拌力以促进样品与试剂的混合并优化传感器性能，但仅需要较小的样品体积。 该装置特别适用于生物流体如血液或尿液的速率检测批次分析。