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Method for quickly decomposing and transforming organic phosphor into inorganic phosphor by pulse point discharge

A cutting-edge discharge and organophosphorus technology, which is applied in the preparation of test samples, analysis by making materials react chemically, and material analysis by observing the influence of chemical indicators, etc., can solve the problem that it takes a long time and cannot detect samples. , complex conditions and other issues, to achieve reliable results

Inactive Publication Date: 2006-02-15
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
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  • Application Information

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Problems solved by technology

The chemical oxidant oxidation method takes a long time and the conditions are more complicated
For the currently commonly used gas chromatography and liquid chromatography detection methods, the defect is that they cannot detect samples on site.

Method used

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  • Method for quickly decomposing and transforming organic phosphor into inorganic phosphor by pulse point discharge
  • Method for quickly decomposing and transforming organic phosphor into inorganic phosphor by pulse point discharge
  • Method for quickly decomposing and transforming organic phosphor into inorganic phosphor by pulse point discharge

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Embodiment Construction

[0015] According to above-mentioned technical scheme, 2 milliliters of solutions that contain organophosphorus (pesticide) are put into the standard test tube of 5 milliliters, this test tube is put into the test tube groove of 500 volts voltage pulse discharger ( figure 2 ), then insert the voltage pulse discharge rod into the test tube containing organic phosphorus (pesticide) solution, and continue to discharge for 5 minutes to convert organic phosphorus into inorganic phosphorus, and immediately add 2 drops of 2.1% ammonium molybdate--4.9 mole / liter hydrochloric acid solution , shake well, add 1 drop of 0.1% stannous chloride monoglycerin solution and 1 drop of 2 mole / liter hydrochloric acid solution, shake well, observe the change of the color of the solution in 20 seconds, blue color indicates that the solution contains organic Phosphorus, by comparing with the color of the standard color guide, the content of organic phosphorus in the solution can be obtained. The cont...

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Abstract

This invention discloses a method of decomposing the organophosphorus to inorganophosphorus quickly by the discharging impulse end, which comprises the following steps: discharging the organophosphorus solution from the impulse end; decomposing the organophosphorus to inorganophosphorus quickly; detecting the organophosphorus content by molybdenum amino acid colorimetric method quickly. This invention adapts a quick test of the toxic patient gastric liquid where oral organophosphorus pesticide residue retains.

Description

technical field [0001] The invention relates to a rapid detection method for organic phosphorus content, in particular to a method for rapidly decomposing organic phosphorus into inorganic phosphorus by pulse tip discharge. This method is suitable for rapid detection of organophosphorus residues in gastric lavage of patients with oral organophosphorus pesticide poisoning. Background technique [0002] Organophosphorus pesticides are currently the most widely used pesticides in China. However, due to their high toxicity, the half-life of organophosphorus pesticides generally takes several weeks to months to degrade, and they can accumulate in animals, causing harm to the environment and humans. Greater hazard. Among them, methamidophos, dimethoate, dichlorvos, trichlorfon, methyl-1605 and other major organophosphorus pesticides all have excessive residues, especially the rapid detection of organophosphorus residues in gastric lavage of patients with o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/78G01N21/27G01N1/28
Inventor 李峰梁世飘高路
Owner XI AN JIAOTONG UNIV