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Sensor system for detecting analytes in low concentration

A sensor and analyte technology, applied in the field of sensor systems, can solve problems such as expensive equipment, inappropriate real-time monitoring, etc., and achieve low-cost effects

Inactive Publication Date: 2010-07-21
GRUNDFOS MANAGEMENT AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, all three methods require extremely expensive equipment
This type of equipment is not suitable, for example, for real-time monitoring of drinking water supplies

Method used

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  • Sensor system for detecting analytes in low concentration
  • Sensor system for detecting analytes in low concentration
  • Sensor system for detecting analytes in low concentration

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0037] according to figure 1 , the sensor system 2 comprises a sensing element 4 in the form of a spring cantilever. Detection region 6 is designed as a working electrode on spring cantilever 4 . The first end of the spring arm 4 is hinged to a base element 8 . The opposite free long end 10 is freely movable, ie the spring arm 4 can be bent over the base component 8 from the articulation area.

[0038] Such as figure 2 a and figure 2 b schematically shows that a specific analyte is detected by the sensing element 4 . exist figure 2 In a, the rest state of the sensor element 4 is shown, which extends substantially straight from the base component 8 . There is no accumulation of elements on the surface of the sensing element 4 , ie on the detection area 6 . exist figure 2 In the state shown in b, elements or molecules 12 of the analyte are accumulated on the detection zone 6 . The accumulation of molecules 12 on the surface of the sensing element 4 results in a chan...

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PUM

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Abstract

The invention relates to a sensor system (2) for detecting analytes in low concentration, comprising at least one sensor element (4; 50; 56; 62) with at least one detection region (6), designed for detecting at least one analyte on the surface thereof, wherein a voltage source (14) is provided, by which the detection region (6) of the sensor element (4; 50; 56; 62) can be applied with an electric voltage. The invention further relates to an associated method for detecting analytes in low concentration.

Description

technical field [0001] The present invention relates to a sensor system for detecting low-concentration analytes, and a corresponding method for detecting low-concentration analytes. Background technique [0002] In many applications, it is necessary to be able to collect or detect specific substances, eg in liquids. These substances can be, for example, toxins, pesticides or other harmful substances in water, especially drinking water. Such substances often have to be collected or detected in already low concentrations here. [0003] Various analytical methods known in the prior art can be used for this purpose. These are, for example, atomic absorption spectroscopy (AAS), atomic emission spectroscopy (AMS) or atomic mass spectroscopy (AMS) as disclosed in "Today's Chemist at Work" 1999 (8, 10, 42). Among them, atomic mass spectrometry is the most sensitive method. All three methods, however, require extremely expensive equipment. Devices of this type are not suitable,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/00
CPCG01N21/7703G01N2291/0256G01N29/036G01N21/553
Inventor 本廷安·安诺斯
Owner GRUNDFOS MANAGEMENT AS