Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for measuring formaldehyde and acetaldehyde content in paper for cigarette at the same time

A formaldehyde and acetaldehyde technology, applied in the field of physical and chemical inspection of cigarette packaging materials, to achieve good linear correlation, good repeatability, and good peak shape.

Inactive Publication Date: 2012-05-02
HONGYUN HONGHE TOBACCO (GRP) CO LTD
View PDF3 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the determination methods of formaldehyde and acetaldehyde mainly include ion chromatography, spectrophotometry, kinetic analysis, gas chromatography-mass spectrometry and liquid chromatography. These methods are mainly concentrated in the atmosphere, cosmetics, textiles, food and resins. , the determination of formaldehyde and acetaldehyde in cigarette paper has not been reported

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for measuring formaldehyde and acetaldehyde content in paper for cigarette at the same time
  • Method for measuring formaldehyde and acetaldehyde content in paper for cigarette at the same time
  • Method for measuring formaldehyde and acetaldehyde content in paper for cigarette at the same time

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Determination of the content of formaldehyde and acetaldehyde in the hard box packing paper (determination method flow process is as follows figure 1 shown);

[0033] 1. Preparation of standard working solution

[0034] (1) Preparation of mixed standard stock solution: Weigh 200 mg of formaldehyde-2,4-dinitrophenylhydrazone and 200 mg of acetaldehyde-2,4-dinitrophenylhydrazone respectively, put them in the same 100mL volumetric flask, and use Acetonitrile was dissolved and the volume was adjusted to the mark to obtain a mixed standard stock solution;

[0035] (2) Preparation of standard working solution: pipette 0.5mL of mixed standard stock solution into a 50mL volumetric flask, dissolve and mix with acetonitrile and set the volume to the mark to obtain the first-level standard working solution; take the first-level standard working solution Add 20.00mL into a 50mL volumetric flask, dissolve and mix with acetonitrile and adjust the volume to the mark to obtain the se...

Embodiment 2

[0059] Determination of the content of formaldehyde and acetaldehyde in the soft box wrapping paper (determination method flow process is as follows figure 1 shown);

[0060] 1. Preparation of standard working solution: Weigh 200 mg of formaldehyde-2,4-dinitrophenylhydrazone and 100 mg of acetaldehyde-2,4-dinitrophenylhydrazone, and the rest are the same as in Example 1.

[0061] 2. Preparation of sample solution and blank solution

[0062] (1) Preparation of sample solution: Take a piece of soft box wrapping paper, accurately cut out the main packaging surface, and a sample with an area of ​​15.5cm × 10.0cm, then weigh it (accurate to 0.1mg), and put it in a 100mL triangular flask with a stopper Cut it into pieces with sterile scissors, add 50.0mL of 4% acetic acid solution, place it on a shaker, shake and extract for 30min. After standing still, accurately pipette 1.0mL of clear liquid into a 10mL volumetric flask, add 4mL of derivatization reagent, dilute to volume with a...

Embodiment 3

[0069] Determination of the content of formaldehyde and acetaldehyde in the wrapping paper (determination method flow process is as follows figure 1 shown);

[0070] 1. Preparation of standard working solution: weigh 200 mg of formaldehyde-2,4-dinitrophenylhydrazone and acetaldehyde-2,4-dinitrophenylhydrazone 200 mg, all the other are the same as in Example 1.

[0071] 2. Preparation of sample solution and blank solution

[0072] (1) Preparation of sample solution: Take a piece of wrapping paper, accurately cut out a sample with an area of ​​22.0cm×5.5cm in the central area of ​​the front of the package, weigh it (accurate to 0.1mg), and place it in a 100mL conical flask with a stopper Cut it into pieces with sterile scissors, add 50.0mL of 4% acetic acid solution, place it on a shaker, shake and extract for 30min. After standing still, accurately pipette 1.0mL of clear liquid into a 10mL volumetric flask, add 4mL of derivatization reagent, dilute to volume with acetonitril...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
recovery rateaaaaaaaaaa
recovery rateaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for measuring formaldehyde and acetaldehyde content in paper for a cigarette at the same time, which comprises the following steps of: preparing a mixed standard stock solution; preparing a standard working solution; creating a standard working curve; preparing a derivatization reagent; preparing a sample solution; analyzing by ultra high performance liquid chromatography; and calculating a result. According to this method, a sample processing method and the chromatographic condition are improved and optimized, so that two compounds to be measured have good separation effect and good peak shape. A scanning operation is carried out by employing two wavelength channels at the same time, so that this method has obvious advantage in sensitivity in comparison with single wavelength measurement at the same time. The ultra high performance liquid chromatography is employed, so that analysis time is greatly shortened. The two compounds to be measured both have better chromatographic peak separation and better linear correlation, the detection limit of the formaldehyde is 0.57mg / kg and the detection limit of the acetaldehyde is 0.34mg / kg. In the method, the recovery rate of the formaldehyde is 98.14%, the recovery rate of the acetaldehyde is 97.55% and the average relative standard deviations of the formaldehyde and the acetaldehyde are both less than 2.5%.

Description

technical field [0001] The invention belongs to the technical field of physical and chemical inspection of cigarette packaging materials, and in particular relates to a method capable of simultaneously detecting cigarette paper (including tipping paper, cigarette paper, forming paper, lining paper, sealing paper, strip and box wrapping paper, and frame paper) ) method for the content of formaldehyde and acetaldehyde contained in it. Background technique [0002] Cigarette paper is an important part of cigarette materials, and it is an important means to promote the reduction of harm and tar in cigarette products, highlight the style and characteristics of cigarette products, and improve the market competitiveness of cigarette products. At present, the safety standard system for cigarette paper is gradually being established, but the research on formaldehyde and acetaldehyde in cigarette paper is still relatively weak, and both formaldehyde and acetaldehyde have cilia toxicit...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/88
Inventor 李响丽赵光飞王庆华者为范多青郭丽娟
Owner HONGYUN HONGHE TOBACCO (GRP) CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com