Non-contact conductivity detector and detection method

A non-contact conductance and detector technology, used in instruments, measuring devices, scientific instruments, etc., to achieve the effects of easy miniaturization, stable response value, and accurate measurement
CN1570624AInactive Publication Date: 2005-01-26DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
0 Cites 8 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Publication Date
2005-01-26
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to a detection technique for conductance which is a detecting apparatus and method for separation detecting of capillary electrophoresis, electricity chromatogram and microcylinder liquid phase chromatogram. This invention comprises function signal generator, detecting electrode, electrode fixing device, signal processing circuit, wherein the two detecting electrodes are in telescopic tubular shape and are directly covered on both ends of capillary; and electrode fixing device is composed of two boards with notches in and two detecting electrodes are located in the notches and are connected separately with signal processing circuit; the above components are set in one metal shielding box; the guiding means of capillary is fixed on the side wall of the box; and the guiding wire of detecting electrode is led by the guiding hole and thus is connected with output edge of function signal generator. This invention is of simple structure and high accuracy and good utilization.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a conductivity detection technology, in particular to a detector and a detection method for separation and detection of capillary electrophoresis, electrochromatography and micro-column liquid chromatography. Background technique

[0002] Conductivity detectors have been widely used in the separation and detection of capillary electrophoresis. Its structure is simple, and it has advantages in the detection of ionic compounds, especially for the detection of some small inorganic cations and anions with low electrical activity and weak optical absorption by amperometric detection. . Conductivity detectors for capillary electrophoresis detection generally use a pair of platinum (Pt) microelectrodes directly inserted into the laser-drilled capillary or placed at the end of the separation capillary, or a metal film is deposited at the end of the capillary as the detection electrode. A certain frequency AC signal is applied to the e...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More