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Method for detecting 2-mercaptobenzothiazole in soil or sediment

A technology for the detection of mercaptobenzothiazole and its detection method, which is applied in the field of chemical analysis, can solve the problems that the detection method of 2-mercaptobenzothiazole has not been reported, and achieve the effect of simple method, high accuracy and sensitivity, and easy operation

Pending Publication Date: 2021-01-05
广电计量检测(合肥)有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, many documents have reported the detection method of 2-mercaptobenzothiazole in medicine, but the detection method of 2-mercaptobenzothiazole in soil has not been reported

Method used

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  • Method for detecting 2-mercaptobenzothiazole in soil or sediment
  • Method for detecting 2-mercaptobenzothiazole in soil or sediment
  • Method for detecting 2-mercaptobenzothiazole in soil or sediment

Examples

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Effect test

Embodiment 1

[0034] This embodiment is a liquid chromatography detection method for 2-mercaptobenzothiazole in soil or sediment disclosed by the present invention. The detection method comprises the following steps:

[0035] The soil pretreatment conditions are shown in Table 1, and the soil pretreatment method includes the following steps:

[0036] (1) Prepare samples: put the collected soil (near Suzhao Village, Qiaocheng District, Bozhou City) in a container, remove foreign matter, and air dry naturally;

[0037] (2) Extract sample: take by weighing 5.0g of the naturally air-dried sample in step (1), extract with Soxhlet extraction: wrap the weighed sample with a glass fiber filter membrane, put it into the Soxhlet extraction reflux tube, Add 100ml of acetone solvent into the flat-bottomed flask, heat the water bath, connect the condenser tube through the circulating condensation pump, control the solvent reflux speed and extraction time, complete the extraction, and collect the extrac...

Embodiment 8

[0046] In Example 8, the volume ratio of acetonitrile to water in the mobile phase was 6:4, the flow rate was 0.8mL / min, and the rest of the test conditions were the same as in Example 1. The lowest concentration point of the standard curve was 0.05ppm standard solution for detection on the machine.

Embodiment 9

[0047] The volume ratio of acetonitrile and water in the mobile phase in Example 9 was 6.5:3.5, and the flow rate was 1.2mL / min. All the other test conditions were the same as in Example 1, and the lowest concentration point of the standard curve was 0.05ppm standard solution for detection on the machine.

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Abstract

The invention discloses a method for testing 2-mercaptobenzothiazole in soil or sediments, and relates to the technical field of chemical analysis. The testing method comprises the following steps: pretreating soil or sediments, and then detecting a pretreated sample by using a liquid chromatography photodiode array ultraviolet visible light detector, wherein the pretreatment method is a Soxhlet extraction method. The method disclosed by the invention can be used for accurately measuring the content of 2-mercaptobenzothiazole in soil or sediments, is simple, easy to operate and high in sensitivity, and is suitable for analyzing various soil or sediment samples.

Description

technical field [0001] The invention belongs to the technical field of chemical analysis, in particular to a method for detecting 2-mercaptobenzothiazole in soil or sediment. Background technique [0002] 2-Mercaptobenzothiazole, as a general-purpose vulcanization accelerator, is widely used in various rubbers. It has a vulcanization accelerating effect on natural rubber and synthetic rubber usually vulcanized with sulfur. Often used in combination with other accelerator systems, such as dithiothiuram and tellurium dithiocarbamate, can be used as a vulcanization accelerator for butyl rubber; combined with tribasic lead maleate, it can be used in light colors Water resistant chlorosulfonated polyethylene compound. In latex, it is often used in combination with dithiocarbamate, and when used in combination with diethylamine diethyldithiocarbamate, it can be vulcanized at room temperature. The product is easy to disperse in rubber and does not pollute. It can also be used t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02G01N30/06G01N30/08G01N30/74
CPCG01N30/02G01N30/06G01N30/08G01N30/74
Inventor 王继忠张席席邹敬张迪罗骁
Owner 广电计量检测(合肥)有限公司
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