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Method for detecting odor substances in water body

A technology of smell and taste substances and detection methods, which is applied in the field of water body detection, can solve the problems of frequent detection and achieve the effects of low detection limit, high accuracy, high accuracy and precision

Active Publication Date: 2022-07-05
BEIJING UNIV OF CIVIL ENG & ARCHITECTURE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to social development and the large-scale use and random discharge of chemical substances such as benzene, ether phenol and indole in production activities, resulting in the large-scale use and random discharge of water sources, resulting in the large-scale use and random discharge of water sources, resulting in phenol and indole in water sources Organoids are detected frequently, raising concerns about the main resulting chemical-like odor issues

Method used

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  • Method for detecting odor substances in water body
  • Method for detecting odor substances in water body
  • Method for detecting odor substances in water body

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A method for detecting odor substances in a water body,

[0042] Pretreatment of carbon fiber: adding carbon fiber to a Soxhlet extractor containing acetone, refluxing for 48 hours at a temperature of 280° C., after the reflux treatment is completed, taking out and drying to obtain pretreated carbon fiber. The amount of carbon fiber used was 30 wt % of acetone.

[0043] Preparation of silanized ionic liquid: 1-allylimidazole was added dropwise to 3-chloropropyltrimethoxysilane, ultrasonically mixed uniformly, and reacted at a temperature of 80 °C for 24 hours under a nitrogen atmosphere. After the reaction was completed, silane was obtained. ionic liquid. The molar amount of 1-allylimidazole used is 100% of 3-chloropropyltrimethoxysilane.

[0044] Preparation of the functional treatment liquid: the silanized ionic liquid, the ammonia solution and the 2-keto-D-glutamic acid hemi-calcium salt are mixed uniformly to obtain the functional treatment liquid. The ammonia solu...

Embodiment 2

[0056] A method for detecting odor substances in a water body,

[0057] Pretreatment of carbon fiber: adding carbon fiber to a Soxhlet extractor containing acetone, refluxing for 48 hours at a temperature of 280° C., after the reflux treatment is completed, taking out and drying to obtain pretreated carbon fiber. The amount of carbon fiber used was 30 wt % of acetone.

[0058] Preparation of silanized ionic liquid: 1-allylimidazole was added dropwise to 3-chloropropyltrimethoxysilane, ultrasonically mixed uniformly, and reacted at a temperature of 80 °C for 24 hours under a nitrogen atmosphere. After the reaction was completed, silane was obtained. ionic liquid. The molar amount of 1-allylimidazole used is 100% of 3-chloropropyltrimethoxysilane.

[0059] Preparation of the functional treatment liquid: the silanized ionic liquid, the ammonia solution and the 2-keto-D-glutamic acid hemi-calcium salt are mixed uniformly to obtain the functional treatment liquid. The ammonia so...

Embodiment 3

[0071] A method for detecting odor substances in a water body,

[0072] Pretreatment of carbon fiber: adding carbon fiber to a Soxhlet extractor containing acetone, refluxing for 48 hours at a temperature of 280° C., after the reflux treatment is completed, taking out and drying to obtain pretreated carbon fiber. The amount of carbon fiber used was 30 wt % of acetone.

[0073] Preparation of silanized ionic liquid: 1-allylimidazole was added dropwise to 3-chloropropyltrimethoxysilane, ultrasonically mixed uniformly, and reacted at a temperature of 80 °C for 24 hours under a nitrogen atmosphere. After the reaction was completed, silane was obtained. ionic liquid. The molar amount of 1-allylimidazole used is 100% of 3-chloropropyltrimethoxysilane.

[0074] Preparation of the functional treatment liquid: the silanized ionic liquid, the ammonia solution and the 2-keto-D-glutamic acid hemi-calcium salt are mixed uniformly to obtain the functional treatment liquid. The ammonia so...

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Abstract

The invention discloses a method for detecting odor substances in a water body, belongs to the field of water body detection, and particularly relates to surface mesoporous silicified carbon fibers obtained by pretreating and acidizing carbon fibers, soaking the carbon fibers in a functional treatment solution, calcining the carbon fibers, soaking the calcined carbon fibers in a silicate ester solution and finally calcining the calcined carbon fibers. The method comprises the following steps: preparing a carbon fiber extraction column from surface mesoporous silicified carbon fibers, adsorbing odor substances in a water body, then carrying out desorption treatment, and detecting by adopting LC-MS / MS; the functional treatment liquid contains silanized ionic liquid, ammonia water and 2-ketone-D-glutamic acid hemicalcium salt; the silanized ionic liquid is prepared from 1-allyl imidazole and 3-chloropropyl trimethoxy silane, and the silanized ionic liquid is prepared from 1-allyl imidazole and 3-chloropropyl trimethoxy silane. According to the method, the detection limit of the odor substances in the water body is low, and the detection accuracy and precision of the odor substances in the water body are relatively high.

Description

technical field [0001] The invention belongs to the field of water body detection, in particular to a detection method for odor substances in water bodies. Background technique [0002] In recent years, the problem of drinking water smell has repeatedly appeared in many countries in the world. The drinking water industry is facing great challenges, and residents' lives and health are affected and threatened. Due to the large-scale use and random discharge of chemical substances such as benzene, ether phenol and indole in social development and production, resulting in the large-scale use and random discharge of water sources, resulting in the large-scale use and random discharge of water sources, resulting in phenol and indole in water sources. Organoids are frequently detected, raising concerns about the primary chemical-based odor problem. [0003] Smell is a major factor in the quality of drinking water. is a major factor in drinking water quality. Different sources of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02G01N30/06B01J20/02B01J20/28B01J20/281
CPCG01N30/02G01N30/06B01J20/0251B01J20/28023B01J20/28083B01J20/281G01N2030/062Y02A20/20
Inventor 张君枝刘方寇莹莹张策晋嘉懋芦静
Owner BEIJING UNIV OF CIVIL ENG & ARCHITECTURE
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