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Method for testing content of benzene and benzene series in water base adhesive for tobaccos

A technology of water-based glue and benzene series for cigarettes, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve problems such as interference, complexity, and influence of volatile component analysis, and achieve elimination of influence and interference, and good linear correlation , High recovery effect

Inactive Publication Date: 2011-11-23
HONGYUN HONGHE TOBACCO (GRP) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the sample pretreatment process is relatively complicated, and the complex sample matrix components will be brought into the analytical instrument system together during direct liquid or solid sampling, thereby affecting and interfering with the analysis of volatile components in the sample
At present, there is no relevant report on the method of using static headspace-gas chromatography-mass spectrometry to determine the content of benzene and benzene series in tobacco water-based adhesives

Method used

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  • Method for testing content of benzene and benzene series in water base adhesive for tobaccos
  • Method for testing content of benzene and benzene series in water base adhesive for tobaccos
  • Method for testing content of benzene and benzene series in water base adhesive for tobaccos

Examples

Experimental program
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Effect test

Embodiment 1

[0039] Determination of the content of benzene and benzene series in tobacco water-based rubber (the determination process is as follows figure 1 shown).

[0040] 1. Preparation of internal standard matrix calibration solution:

[0041] (1) Preparation of internal standard stock solution Ⅰ: Accurately weigh 50 mg of fluorobenzene in a 50 mL volumetric flask, adjust the volume to the mark with 50% ethanol solution and mix well to obtain internal standard stock solution Ⅰ with a concentration of 1 g / L; Store the standard stock solution Ⅰ in a sealed refrigerator at 4°C, and the validity period is 3 months;

[0042] (2) Preparation of internal standard stock solution II: Accurately pipette 1mL of internal standard stock solution I into a 100mL volumetric flask, dilute to the mark with 50% ethanol solution and mix well to obtain an internal standard stock solution with a concentration of 1mg / L Ⅱ; internal standard stock solution Ⅱ needs to be prepared immediately;

[0043] (3)...

Embodiment 2

[0072] In this example, the repeatability and standard addition recovery of the method of the present invention are tested.

[0073] Add 3 different concentrations of standard working solutions into the samples (concentrations of the corresponding components in the standard solution are 0.008mg / L, 0.02mg / L, 0.04mg / L), and the concentration of the internal standard is 1mg / L. Each sample is measured 5 times respectively, and the condition of static headspace chromatography mass spectrometry analysis is the same as the static headspace chromatography mass spectrometry analysis condition of embodiment 1, according to the analysis result, calculate the standard addition recovery rate of benzene and benzene series in the tobacco water-based glue of this method and The relative standard deviation of measured value after adding the standard, the result is as shown in table 4:

[0074] Table 4 The results of standard addition recovery and standard deviation

[0075] ...

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Abstract

The invention discloses a method for testing the content of benzene and benzene series in a water base adhesive for tobaccos. The method comprises the following steps of: preparing internal standard matrix correction liquid, standard working solution and sample solution; performing static headspace gas chromatography and mass spectrometry analysis; drawing a standard curve, calculating a result and the like. The improved and optimized detection method has the advantages of simplicity and accuracy in operation, high sensitivity, high recycling rate, high repeatability and the like. In the method, fluorobenzene is used as an internal standard for internal standard quantitative detection, so that errors caused by a sample preparation process, different sample injection quantities or different instrument precision and the like can be reduced effectively; and under the adopted chromatographic condition, the separation degree of five target compounds and an internal standard chromatographic peak is high and higher linearity relevance is high; and the detection limit is 0.40 to 0.84mu g / kg, the quantitation limit is 21.32 to 2.79mu g / kg, the marking recovery rate is 95 to 101 percent, and the average relative standard deviation is 0.91 to 2.46 percent.

Description

Technical field [0001] The present invention belongs to the field of cigarette material cooking inspection technology. It specifically involves a method of using static top-gas-phase chromatography-mass spectrometry method to determine the content of benzene and benzene in hydraulic glue. Background technique [0002] Smoke -based water -based glue is one of the cigarette materials, which is mainly used for filter rod molding, cigarette mouth, cigarette mouth connection, filter rod midline, and cigarette packaging box.The high content of volatilization of phenyl and benzene -based in cigarettes such as water -based glue gums not only has a adverse effect on cigarette smell, but also has a serious impact on cigarettes.There may be potential harm to the health of smokers.Among them, benzene substances, especially benzene, have great toxicity and damage to the human body's bone marrow and cytokines; toluene, dyshayne, and acetthenezin are low toxic substances.Anesthesia for the cent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02G01N30/06
Inventor 王庆华范多青者为李响丽李文英邹楠吴佳姜黎
Owner HONGYUN HONGHE TOBACCO (GRP) CO LTD
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