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Derivatization method of dithiocarbamate compound

A technology of dithiocarbamic acid and salt compounds, which is applied in the field of analytical chemistry, can solve the problems of many reagents, cumbersome operation, and high cost, and achieve the effect of simple method

Pending Publication Date: 2022-02-11
SHANDONG YANTAI AGRI SCI & TECH INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These two commonly used methods use many reagents, high cost, and cumbersome operations

Method used

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  • Derivatization method of dithiocarbamate compound

Examples

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Comparison scheme
Effect test

Embodiment 1

[0014] A kind of derivative dithiocarbamate compound method

[0015] Weigh 0.1g of iodine, add 100mL of methanol, after ultrasonic dissolution, dilute to 1000mL with water to prepare an iodine solution; add 0.01mL of iodine solution to the injection vial containing 1ml of mancozeb compound, and react in a water bath at 40°C for 10min Then take it out and test it on the machine. Specific results such as figure 1 As shown, 276nm is the characteristic absorption wavelength of the derivatized compound, and the underivatized compound has no obvious absorption peak at this wavelength, indicating that the derivatization is successful and a new compound is generated.

Embodiment 2

[0017] A kind of derivative dithiocarbamate compound method

[0018] Weigh 0.5g of iodine, add 100mL of methanol, after ultrasonic dissolution, dilute to 1000mL with water to prepare an iodine solution; add 0.03mL of iodine solution to the injection vial containing 1ml of zircin compound, react in a water bath at 50°C for 10min, then take out On-board measurement.

Embodiment 3

[0020] A kind of derivative dithiocarbamate compound method

[0021] Weigh 1.0g of iodine, add 100mL of methanol, after ultrasonic dissolution, dilute to 1000mL with water to prepare an iodine solution; add 0.05mL of iodine solution to the injection vial containing 1mL of propenezine compound, react in a water bath at 60°C for 10min Take out the machine for measurement.

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Abstract

The invention relates to a derivation method of a dithiocarbamate compound, and belongs to the field of analytical chemistry. The method comprises the following steps: adding 0.01-0.05 mL of an iodine solution with the concentration of 0.01-0.1% into a small sample injection bottle containing a dithiocarbamate compound; and then conducting water bath reaction at 40-60 DEG C for 10 min, taking out the reaction product and measuring the reaction product on a machine. The dithiocarbamate compound is prepared from ziram, propineb, mancozeb and asomate. The invention provides a novel method for deriving the dithiocarbamate compound, the method is simple, convenient and rapid, and a novel idea is provided for determination of the compound.

Description

technical field [0001] The invention belongs to the field of analytical chemistry, and in particular relates to a derivation method of dithiocarbamate compounds. Background technique [0002] Dithiocarbamate compounds are organosulfur fungicides widely used in the world. They have the characteristics of broad spectrum, high efficiency and low toxicity, and are widely used to prevent and control various fungal plant diseases of crops. Such compounds include ethylene bis-dithiocarbamate, propylene bis-dithiocarbamate and dithiocarbamate, and their parent and metabolites have great potential harm to the environment and human body , the risk monitoring of such compounds should be strengthened. [0003] At present, the determination of such compounds usually requires derivation. There are two commonly used methods. One is to use hydrochloric acid acid hydrolysis, under the catalysis of stannous chloride, to react at 80°C for nearly 1 hour to generate carbon disulfide gas, and to...

Claims

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Application Information

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IPC IPC(8): C07C333/16
CPCC07C333/16
Inventor 姜蔚姚杰王新语王雪景刘少青
Owner SHANDONG YANTAI AGRI SCI & TECH INST
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