Rapid test and identification method for organic mixed liquid sample and application

A liquid sample and identification method technology, which is applied in the classification supervision of customs import and export commodities and the application of tax-related and certificate-related laboratory identification in laboratories. In the field of rapid identification of organic mixed liquid samples, it can solve the problems of lack of identification methods. , to achieve the effect of strong versatility and simple and fast pretreatment conditions

Pending Publication Date: 2022-02-25
INSPECTION & QUARANTINE TECH CENT SHANDONG ENTRY EXIT INSPECTION & QUARANTINE BUREAU
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide an assay identification method and application of an organic mixed liquid sample, which is used to solve the problem of lack of assay identification methods for related products in the prior art

Method used

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  • Rapid test and identification method for organic mixed liquid sample and application
  • Rapid test and identification method for organic mixed liquid sample and application
  • Rapid test and identification method for organic mixed liquid sample and application

Examples

Experimental program
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Effect test

Embodiment 1

[0028] An enterprise declares to import an "oil-based non-stick coating". The main components of the oil-based non-stick coating are 45% acrylic resin, 15% polysiloxane resin, 30% aromatic solvent, 7% pigment, and 1% epoxy resin , Resin accelerator 2%. The coating is directly used on aluminum materials such as kitchen cooking utensils and electrical products. Customs on-site inspection Customs officers conduct on-site inspection: check the packaging, check the product name and appearance of the goods, check the label, check the specification and model, check the quantity and weight, check the inclusion and inclusion. In the above-mentioned inspection, it was found that the label on the outer packaging of the goods showed that the content of toluene was 39%, which was inconsistent with the declared 30% of aromatic solvents. It is suspected of evading the "Import and Export License for Dual-use Items and Technologies", so samples were taken and sent to the laboratory for inspec...

Embodiment 2

[0034] An enterprise declares to import an "acrylic resin adhesive". The main components of the goods are: 45% ethyl acetate, 40% acrylic resin, 5% ethanol, 4% epoxy soybean oil, 5% isopropanol, methacrylic acid Esters 1%. Wherein the acrylic resin is polymerized from 50% methyl methacrylate and 50% butyl methacrylate. Uses: Used in the production of gravure inks. Functions of main components: acrylic resin plays the role of bonding with the substrate; epoxy soybean oil plays the role of softening the resin, it is a non-toxic plastic plasticizer, which can be used as a plasticizer for food packaging materials (with epoxy large Description of the application field of soybean oil: for polymer materials); the remainder is a solvent, which acts as a dilution. This product belongs to "Adhesion Adjuster", which can also be understood as "Ink Adhesive", and its purpose is to fix the color.

[0035] The original declaration tax number of the enterprise is 3906909000. After the on-s...

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Abstract

The invention provides a rapid test and identification method for an organic mixed liquid sample. The rapid test and identification method comprises the following steps: (1) qualitative analysis: 1) infrared spectroscopy qualitative analysis; (2) carrying out qualitative analysis by using a gas chromatography-mass spectrometry method; (2) when the qualitative analysis result in the step (1) shows that the sample contains one or more of toluene, acetone and butanone, further quantitatively analyzing the contents of toluene, acetone and butanone, wherein when the qualitative analysis result in the step (1) shows that the sample does not contain any one of toluene, acetone and butanone, the step (2) does not need to be carried out. The method has the following beneficial effects: (1) the pretreatment conditions are simple and rapid, and complicated extraction, purification and other means are not needed; (2) the method has strong universality and is suitable for various organic mixed liquid samples; and (3) component identification of the organic mixed liquid sample can be rapidly realized, rapid customs clearance of enterprises is facilitated, and customs are served for law enforcement and customs control.

Description

technical field [0001] The invention belongs to the technical field of analytical chemistry, and in particular relates to a rapid laboratory identification method for an organic mixed liquid sample, and its application in customs import and export commodity classification supervision and laboratory tax-related certificate-related laboratory identification. Background technique [0002] Organic mixed liquid samples, as the name suggests, are a large class of multi-component mixture samples that use organic solvents as dispersants and appear as liquids, including adhesives, coatings, inks, rubber treatment agents, etc. In customs laboratories, organic mixed liquid samples are often submitted for inspection as tax-related and certificate-related samples. [0003] Adhesives, also known as adhesives, adhesives, and adhesives, are referred to as glue for short. They can tightly bond two or more homogeneous or heterogeneous objects (or materials) together. A substance of sufficien...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N35/00G01N21/3577G01N30/72
CPCG01N35/00G01N21/3577G01N30/72
Inventor 尹桂林牛增元孙忠松张雪琰陈静张大伟王卫锋王晗
Owner INSPECTION & QUARANTINE TECH CENT SHANDONG ENTRY EXIT INSPECTION & QUARANTINE BUREAU
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