公开(公告)号：US5636017A

公开(公告)日：1997-06-03

申请号：US212521

申请日：1994-03-11

申请人： Alfredo E. Bruno ,  Beat Krattiger ,  Carlo S. Effenhauser ,  Francois Maystre ,  Philippe Nussbaum

发明人： Alfredo E. Bruno ,  Beat Krattiger ,  Carlo S. Effenhauser ,  Francois Maystre ,  Philippe Nussbaum

IPC分类号： G01N21/45 ,  G01N21/05 ,  G01N21/64 ,  G01N27/447 ,  G01N30/74

CPC分类号： G01N30/74 ,  G01N21/05 ,  G01N27/44721 ,  G01N2021/0346

摘要： An optical detection arrangement for small volume chemical analysis comprises a light source (22), a capillary tube (23) and a photoelectric detector (24). The arrangement of the light source (22) relative to the capillary tube (23) is such, that probing light (P) emitted from the light source (22) strikes a sample (S) to be analyzed, which is flowing through the capillary tube (23), whereas the photoelectric detector (24) is arranged relative to the capillary tube (23) such, that it is capable of detecting light comming from the capillary tube. The photoelectric detector (24) is connected with an evaluation electronics. Between the light source (22) and the capillary tube (23)the probing light (P) is guided essentially in a guiding means (26) which is made of a material having a refractive index gradient about perpendicular to the direction of propagation of the probing light (P), and which is connected to the capillary tube (23) such that probing light (P) exiting the guiding material (26) strikes the capillary tube (23). Preferably light emitting diodes (LEDs) or laser diodes are used as light source (22).

摘要翻译： 用于小容量化学分析的光学检测装置包括光源（22），毛细管（23）和光电检测器（24）。 光源（22）相对于毛细管（23）的布置是这样的，即从光源（22）发射的探测光（P）撞击待分析的样品（S），该​​样品（S）流过毛细管 管（23），而光电检测器（24）相对于毛细管（23）布置，使得其能够检测来自毛细管的光。 光电检测器（24）与评估电路连接。 在光源（22）和毛细管（23）之间，探测光（P）基本上在引导装置（26）中引导，该引导装置（26）由具有垂直于 探测光（P），并且其连接到毛细管（23），使得离开引导材料（26）的探测光（P）撞击毛细管（23）。 优选使用发光二极管（LED）或激光二极管作为光源（22）。