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On-line monitoring device for emamectin reaction

A technology of methylamino abamectin and reaction device, which can be used in measurement device, color/spectral property measurement, material analysis by optical means, etc., can solve the problems of data lag, problems such as failure to be found in time, and avoid waste. , Simple structure, easy operation effect

Active Publication Date: 2011-12-21
佳木斯兴宇生物技术开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the experimental process that emamectin is prepared through chemical synthesis of emamectin benzoate, because the experimental monitoring data lags behind, causing problems that cannot be found in time, providing a kind of On-line monitoring device for emamectin reaction

Method used

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  • On-line monitoring device for emamectin reaction
  • On-line monitoring device for emamectin reaction
  • On-line monitoring device for emamectin reaction

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specific Embodiment approach 1

[0018] Specific embodiment one: the following combination figure 1 and figure 2 Illustrate this embodiment, the device for on-line monitoring methylamino abamectin reaction described in this embodiment, it includes reaction device 1, it also includes optical fiber detection device 2, near-infrared spectrometer 3 and controller 4,

[0019] The detection end of the optical fiber detection device 2 probes into the reaction solution through the sampling port of the reaction device 1, the optical signal output by the optical fiber detection device 2 is received by the receiving end of the near-infrared spectrometer 3, and the output end of the near-infrared spectrometer 3 is connected to the controller 4. input.

[0020] The method of monitoring the reaction of methylamino abamectin described in this embodiment adopts the near-infrared spectrometer 3 to detect various parameters of the reactant. This monitoring method adopts the technology of optical fiber conduction, which reali...

specific Embodiment approach 2

[0022] Specific embodiment two: the following combination figure 1 and figure 2 This embodiment is described. This embodiment is a further description of the first embodiment. The optical fiber detection device 2 is composed of an optical fiber probe 2-1 and a probe fixing member 2-2. The optical fiber probe 2-1 is made of steel material. In the shape of a sheet, one end of the optical fiber probe 2-1 is a fixed end, and the fixed end is slidably connected with the probe fixing member 2-2, and the other end of the optical fiber probe 2-1 is a detection end, and the detection end is in the shape of a right-angle bend, The detection end probes into the reaction solution through the sampling port of the reaction device 1 , and the optical signal output by the optical fiber probe 2 - 1 is received by the receiving end of the near-infrared spectrometer 3 .

[0023] In this embodiment, the detection end of the optical fiber probe 2-1 is set at a right angle, and the vertical secti...

specific Embodiment approach 3

[0024] Specific embodiment three: the following combination figure 1 and figure 2 Describing this embodiment, this embodiment is a further description of Embodiment 2. The distance between the detection end of the optical fiber probe 2-1 and the head end of the probe fixing member 2-2 is 1 mm-5 mm.

[0025] The distance between the detection end of the optical fiber probe 2-1 and the head end of the probe fixing member 2-2 in this embodiment is selected to be 1 mm-5 mm, which can effectively receive the characteristic information of all samples. If the distance is too small, the characteristic information of the sample will be received. Incomplete, the spectral information of the sample is incomplete, resulting in deviation of the analysis results; too large a distance will make the characteristic information of the sample not fully reflected back, resulting in the loss of the spectral information of the sample, and the analysis results will also be biased.

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Abstract

The invention relates to a device for monitoring methylamino abamectin reaction on line and belongs to the technical field of intermediate process on-line monitoring of chemical reaction. The device solves the problem that problems cannot be found timely caused by test monitoring data lag in the test process of preparing the methylamino abamectin benzoate from the methylamino abamectin through chemical synthesis. The device comprises a reaction device, an optical fiber detection device, a near infrared spectrometer and a controller, wherein the detection end of the optical fiber detection device penetrates into reaction solution through a sampling port of the reaction device; an optical signal output by the optical fiber detection device is received by the receiving end of the near infrared spectrometer; and the output end of the near infrared spectrometer is connected with the input end of the controller. The device is suitable for monitoring the methylamino abamectin reaction on line.

Description

technical field [0001] The invention relates to a device for on-line monitoring of methylamino abamectin reaction, and belongs to the technical field of on-line monitoring of chemical reaction intermediate processes. Background technique [0002] Avermectin can be obtained by chemical synthesis. The benzoate has the characteristics of ultra-high efficiency, broad spectrum, near non-toxicity, no residue and no drug resistance. And it has been widely used in medicine, pesticides, veterinary drugs and other fields. In particular, the benzoate is easily degraded in soil, has no residue, and does not pollute the environment. Mixed with most pesticides. [0003] At present, methylaminoavermectin benzoate is mainly synthesized from methylaminoavermectin B1a through oxidation, amination and reduction reactions. During the oxidation process, the hydroxyl group in Abamectin B1a needs to be protected to prevent it from being oxidized, so the experimental process needs to be monitored...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/35G01N21/3577G01N21/359
Inventor 姜波黄玉东刘丽白永平孟令辉白惠文费飞飞潘海涛
Owner 佳木斯兴宇生物技术开发有限公司
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