A kind of wooden toy sample pretreatment method and use

A sample pretreatment and toy technology, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of toxicity infringement, detection of wood preservatives, weak resistance, etc., and achieve the effect of easy method
CN102269743AInactive Publication Date: 2011-12-07CHINESE ACAD OF INSPECTION & QUARANTINE
0 Cites 12 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINESE ACAD OF INSPECTION & QUARANTINE
Publication Date
2011-12-07
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to a pretreatment method for wooden toy samples and a method for determining the content of wood preservatives. The pretreatment method is used to pretreat the toy samples, and then the organic phase is taken into a gas chromatography-mass spectrometer for measurement, and finally the obtained chromatographic The peak area of ​​the peak is plotted on the ordinate, and the corresponding preservative content is plotted on the abscissa to draw a standard working curve. Wood preservatives that can be accurately and effectively detected include 2,4-dichlorophenol, 2,4,6-trichlorophenol, 2,4,5-trichlorophenol, 2,3,4,6-tetrachlorophenol, Lindane, pentachlorophenol, permethrin, cyfluthrin, cypermethrin, deltamethrin. The method for the determination of wood preservatives in toys was developed for the first time, which filled the technical gap; the solid-phase extraction method can be used to detect multiple samples in parallel; and the commonly used detection device (gas chromatography-mass spectrometer) is used, and the method is easy to popularize.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the field of substance detection, in particular to a pretreatment method before determination of wooden toy samples and the detection of wood preservatives on wooden toy samples by using the method. Background technique

[0002] Treat wood with chemicals to protect wood from various organisms such as fungi, insects and marine borers, improve the durability of wood, and prolong the service life of wood. Such chemicals are called wood preservatives. The characteristics that wood preservatives should have:

[0003] 1. Sufficient toxicity to organisms that endanger or inhabit wood;

[0004] 2. Wood preservatives must have persistence and stability;

[0005] 3. Good permeability in wood;

[0006] 4. No corrosion to metal;

[0007] 5. It does not affect the adhesion and paintability of wood, and does not reduce the mechanical properties of wood;

[0008] 6. It is safe to use, non-toxic or low-toxic to humans and animals, and has...

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