公开(公告)号：US3666941A

公开(公告)日：1972-05-30

申请号：US3666941D

申请日：1970-09-28

Applicant: LAB DATA CONTROL INC

Inventor： WATSON EMMETT S

IPC: G01J1/16 ,  G01N21/64 ,  G01N23/22

CPC classification number: G01N21/645 ,  G01J1/1626 ,  G01N2201/0806

Abstract: There is disclosed a double beam differential fluorimeter requiring no light chopper and characterized by unusually small cell volume and high optical efficiency. The instrument comprises a bifurcated conical light tunnel having highly reflecting internal surfaces. A transparent tube passes through each side of the bifurcated light tunnel, one for containing a sample fluid, the other for containing a reference fluid. A light source directs ultraviolet radiation into the large end of the conical tunnel. A pair of photodetectors are positioned at the small end of the tunnel, together with an ultraviolet blocking filter. Each detector is responsive, respectively, to fluorescence from the sample and reference fluids. An electrical bridge circuit compares the intensities of the fluorescence derived from the sample and reference fluids.

Abstract translation: 公开了一种双光束差分荧光计，其不需要光斩波器，其特征在于异常小的电池体积和高的光学效率。 仪器包括具有高反射内表面的分叉圆锥形光通道。 透明管通过分叉光通道的每一侧，一个用于容纳样品流体，另一个用于容纳参考流体。 光源将紫外线辐射引导到锥形隧道的大端。 一对光电探测器与紫外线阻隔滤光片一起定位在隧道的小端。 每个检测器分别响应于来自样品和参比流体的荧光。 电桥电路比较来自样品和参比流体的荧光的强度。

公开(公告)号：AU4381372A

公开(公告)日：1974-01-03

申请号：AU4381372

申请日：1972-06-23

Applicant: LAB DATA CONTROL INC

Inventor： WATSON EMMETT S

IPC: G01N21/27 ,  G01J1/16 ,  G01N21/31 ,  G01J3/42 ,  G01N21/02