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Method for detecting residual chlorine

A technology of residual chlorine and detection pool, which is applied in color/spectral characteristic measurement, material analysis by observing the influence on chemical indicators, analysis by making materials undergo chemical reactions, etc., and can solve problems such as metal corrosion and equipment perforation

Inactive Publication Date: 2014-03-05
SUZHOU WENHAO MICROFLUIDIC TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Highly active chloride ions can cause local corrosion of metals, and severe pitting corrosion can cause equipment perforation

Method used

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  • Method for detecting residual chlorine
  • Method for detecting residual chlorine
  • Method for detecting residual chlorine

Examples

Experimental program
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Embodiment Construction

[0019] specific implementation plan

[0020] Below in conjunction with accompanying drawing and embodiment the method for residual chlorine sample detection is described further.

[0021] In this example, an external micro-syringe pump is used to inject samples, and the microfluidic chip for mixed detection is used as a carrier to carry out the mixed reaction of residual chlorine samples and color reagents, and then the assembled optical system is used to perform spectrophotometric analysis of the color-developed samples. law detection. The microfluidic chip for mixed detection in this example is made of PMMA material with high light transmittance, as shown in Figure 2, mainly including chromogenic reagent inlet 1, buffer solution inlet 2, residual chlorine sample Sample inlet 3, buffer pool 4, sample detection pool 5, mixing microchannel 6 and waste liquid outlet 7. The hybrid microchannel in the microfluidic chip has the following Figure 4 The array of microstructures sh...

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Abstract

The invention discloses a method for detecting residual chlorine. According to the method, microscale syringe pump is taken as a driving effect force, a micro fluidic chip is taken as a carrier, a chromogenic mixing reaction of a residual chlorine sample and a chromogenic reagent DPD is carried out, then an assembled optics detection system is used for detecting the content of the residual chlorine in the sample. The micro fluidic chip used in the detection method has a micro block array unit for promoting the residual chlorine sample and DPD chromogenic reagent reaction, and a spectrophotometry method is used for detecting the residual chlorine content in the sample in a sample detection pool. The invention provides the residual chlorine sample determination method with simple, rapid and effective characteristics.

Description

technical field [0001] The invention relates to a method for detecting residual chlorine. The method uses a microfluidic chip for mixed detection as a carrier to carry out the color mixing reaction of the residual chlorine sample, and uses an optical detection system assembled based on a spectrophotometric method to detect the content of the residual chlorine sample in the sample. Background technique [0002] Microfluidic chip is also called Lab-on-a-chip or Micro-Total Analysis System (μTAS). Through micro-nano processing technology, the sample processing, reaction, separation, detection, etc. in chemistry or biology can be controlled by using a flexible microchannel network to realize the control of the entire experimental system, so as to realize various functions of traditional chemistry or biology laboratories. Function. Manz et al. (Manz, A., Graber, N. and Widmer, H.M., Miniaturized Total Chemical-Analysis Systems-a Novel Concept for Chemical Sensing, Sensor.Actuat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/78G01N21/31
Inventor 聂富强荣吉赞
Owner SUZHOU WENHAO MICROFLUIDIC TECH CO LTD
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