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Gas chromatography analysis method for 5-chloro-2,4,6-trifluoro-1,3-bezenedicarbonitrile

A technology for gas chromatography analysis and chlorothalonil, applied in analytical materials, chemical instruments and methods, material separation, etc.

Inactive Publication Date: 2006-06-21
YUNNAN AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the quantitative analysis of chlorothalonil using gas chromatographic analysis, an accurate and rapid instrumental analysis method, has not been reported yet.

Method used

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  • Gas chromatography analysis method for 5-chloro-2,4,6-trifluoro-1,3-bezenedicarbonitrile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 1. Preparation of internal standard solution

[0025] Weigh 50mg (accurate to 1mg) of dimethyl phthalate in a 100mL volumetric flask, dissolve it with acetone and make to volume.

[0026] 2. Preparation of standard solution

[0027] Weigh 50 mg (according to pure calculation, accurate to 1 mg) of chlorothalonil standard sample in a 10 mL volumetric flask, add 5 mL of internal standard solution to fully dissolve, dissolve with acetone and make up to volume.

[0028] 3. Preparation of sample solution

[0029] Weigh a chlorothalonil sample containing 50 mg of active ingredients (according to pure calculation, accurate to 1 mg) into a 10 mL volumetric flask, accurately add 5 mL of internal standard solution to fully dissolve, add an appropriate amount of acetone to dissolve, and then ultrasonically oscillate for 5 min. Dilute to volume with acetone, filter and test.

[0030] 4. Determination

[0031] The sample to be tested in step 3 is filled with a ShimaliteW (AW-DMCS...

Embodiment 2

[0033] 1. Preparation of internal standard solution

[0034] Weigh 200mg (accurate to 1mg) of dimethyl phthalate in a 100mL volumetric flask, dissolve it with acetone and make to volume.

[0035] 2. Preparation of standard solution

[0036] Weigh 100mg (according to pure calculation, accurate to 1mg) trifluorochlorothalonil standard sample into a 25mL volumetric flask, add 10mL internal standard solution to fully dissolve, dissolve with acetone and make up to volume.

[0037] 3. Preparation of sample solution

[0038] Weigh the chlorothalonil sample containing equivalent to 100mg active ingredient (according to pure calculation, accurate to 1mg) into a 25mL volumetric flask, accurately add 10mL internal standard solution to fully dissolve, add appropriate amount of acetone to dissolve, and then ultrasonically oscillate for 5min. Dilute to volume with acetone, filter and test.

[0039] 4. Determination

[0040] The sample to be tested in step 3 is filled with a ShimaliteW (...

Embodiment 3

[0042] 1. Preparation of internal standard solution

[0043] Weigh 2000mg (accurate to 1mg) of dimethyl phthalate in a 100mL volumetric flask, dissolve it with acetone and make to volume.

[0044] 2. Preparation of standard solution

[0045] Weigh 2000mg (according to pure calculation, accurate to 1mg) of chlorothalonil standard sample in a 100mL volumetric flask, add 25mL internal standard solution to fully dissolve, dissolve with acetone and make up to volume.

[0046] 3. Preparation of sample solution

[0047] Weigh a chlorothalonil sample containing 2000 mg of active ingredients (according to pure calculation, accurate to 1 mg) into a 100 mL volumetric flask, accurately add 25 mL of internal standard solution to fully dissolve, add an appropriate amount of acetone to dissolve, and then ultrasonically oscillate for 5 min. Dilute to volume with acetone, filter and test.

[0048] 4. Determination

[0049] The sample to be tested in step 3 is filled with a ShimaliteW (AW-D...

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Abstract

The invention discloses a gas-chromatography analysis method of trifluoro chloroquine (5-chlorine-2, 4, 6-trifluoro-1, 3-xylylene nitrile), which is characterized by the following: adapting gas-chromatography filling column of different polarity fixing liquids carrier or gas-chromatography capillary pipe column of different polarity fixing liquids; utilizing flame ionization detector or thermal conductivity detector or electronic capture detector to do gas-chromatography quantitative analysis of trifluoro chloroquine. The invention is fit for preparing the sample of organic solvent.

Description

technical field [0001] The invention relates to a gas chromatography analysis method of chlorothalonil, and its technical field belongs to the analysis method of pesticides. Background technique [0002] Chlorothalonil (2,4,5,6-tetrachloro-1,3-phthalonitrile), is a broad-spectrum, efficient, safe agricultural, forestry and industrial fungicide, which has preventive and therapeutic effects on a variety of crops , which has a long and stable duration, and can be used for various diseases of various crops such as wheat, rice, fruit trees, vegetables, peanuts, tea, rubber, and forests. There are not many studies on the fluorine-containing derivatives of chlorothalonil. Due to the introduction of fluorine atoms or fluorine-containing groups, the volatility, diffusivity, compatibility and surface activity of the compound are increased, and the steric hindrance has little effect, so it can fully It is reported that the fluorine-containing derivative of chlorothalonil trifluorochlo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02B01J20/281G01N30/06
Inventor 叶敏朱有勇林军李成云李正跃肖春姬广海
Owner YUNNAN AGRICULTURAL UNIVERSITY
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