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A method for the detection of tcep and tcpp in textiles, leather and plastics

A detection method, textile technology, applied in the field of chemical detection, to achieve the effect of high sensitivity, good precision, simple and fast detection method

Active Publication Date: 2016-04-13
必维申优质量技术服务江苏有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, there are no specific testing standards for these two substances

Method used

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  • A method for the detection of tcep and tcpp in textiles, leather and plastics
  • A method for the detection of tcep and tcpp in textiles, leather and plastics
  • A method for the detection of tcep and tcpp in textiles, leather and plastics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A kind of detection method of TCEP and TCPP in textiles, leather and plastic products, adopts gas chromatography-mass spectrometry to detect, comprises the following steps:

[0040] A. Standard solution preparation

[0041] Preparation of TCEP, TCPP and anthracene-D10 standard stock solutions: Weigh a certain amount of TCEP, TCPP and anthracene-D10 standard products, and use AR grade toluene to make volumes in 10mL volumetric flasks respectively to prepare 1000mg / L stock solutions.

[0042] Preparation of TCEP and TCPP standard working solutions: Accurately pipette an appropriate amount of standard stock solution, dilute it with AR grade toluene, and make standard working solutions of 0.5mg / L, 1mg / L, and 5mg / L (the internal standard anthracene-D10 is 0.5mg / L).

[0043] B. Sample pretreatment

[0044]Sampling: Take a representative sample, cut it into a size of about 1mm×1mm, accurately weigh 1.0g (accurate to 0.0001g), and place it in a 40mL glass reaction bottle; ad...

Embodiment 2

[0060] Example 2 The retention times and characteristic fragment ions of the target substances (TCEP and TCPP) in the examples are shown in Table 1. The chromatogram of TCEP and TCPP in the embodiment sees figure 1 , where the abscissa is the retention time, and the ordinate is the signal intensity;

[0061] Table 1 Retention time, characteristic fragment ions and abundance ratio of the target

[0062] Substance name

[0063] From Table 1 and figure 1 It can be seen that under the detection conditions of Example 1, the target objects (TCEP and TCPP) can be well separated.

Embodiment 3

[0064] Embodiment 3 linear relationship

[0065] Under the optimized detection conditions of the present invention, the standard solutions of TCEP and TCPP are detected within the concentration range of 0.5-5 mg / L. Standard working curve see figure 2 ,Depend on figure 2 It can be seen that its concentration has a good linear relationship with the response value, the linear equation: TCEP: Y=0.1758X-0.03933, TCPP: Y=0.04729X-0.02539, the correlation coefficient R 2 = 0.9997.

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Abstract

The invention discloses a detection method of TCEP and TCPP in textile, leather and plastics, and uses a gas chromatography-mass spectrometry to detect. The detection method provided by the invention is simple fast and high in sensitivity, shows linear correlation in the range of 0.5-5mg / L, has coefficient of 0.9997, and detection limit of 0.5mg / L, adding standard recovery of 94%-116%, and relative standard deviation RSD (n=7) less than 6%. The method can be well applied to detection of TCEP and TCPP in textiles, leather and plastics.

Description

technical field [0001] The invention relates to the field of chemical detection, in particular to a method for detecting TCEP and TCPP in textiles, leather and plastics. Background technique [0002] TCEP, tris(2-chloroethyl) phosphate, is a kind of alkyl phosphate, which is widely used as flame retardant plasticizer and viscosity modifier in polyurethane, polyester resin, polyacrylate and other polymers. in the construction, furniture and textile industries. TCEP belongs to category 2 carcinogens and category 1B reproductive toxic substances. TCEP is easily released from toys by the child's sucking and chewing behavior. Ingestion of TCEP can cause kidney, liver and brain toxicity, damage to health and induce cancer. TCPP, tris (2-chloropropyl) phosphate, is a halogenated substitute of TCEP, which has similar physicochemical properties and toxicological characteristics to TCEP, so the Health and Environmental Science Committee (SCHER) believes that the restrictions on TCE...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N30/88G01N30/06
Inventor 李明星
Owner 必维申优质量技术服务江苏有限公司
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