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Determination method of octylphenol ethoxylate and nonylphenol ethoxylate in water-based glue

A technology of middle octylphenol polyoxyethylene ether and nonylphenol polyoxyethylene ether, which can be used in measurement devices, instruments, scientific instruments, etc., can solve problems such as significant NPnEO content, achieve short detection time, good repeatability, Sensitive effect

Active Publication Date: 2015-09-02
CHINA NAT TOBACCO QUALITY SUPERVISION & TEST CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The optimized extraction method was used to detect nonylphenols in leather samples, and the results showed that there was no NP in the leather samples, but the content of NPnEO was significant

Method used

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  • Determination method of octylphenol ethoxylate and nonylphenol ethoxylate in water-based glue
  • Determination method of octylphenol ethoxylate and nonylphenol ethoxylate in water-based glue
  • Determination method of octylphenol ethoxylate and nonylphenol ethoxylate in water-based glue

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Experimental program
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Embodiment 1

[0024] In this embodiment, the determination method for the content of octylphenol polyoxyethylene ether and nonylphenol polyoxyethylene ether in water-based glue is as follows (the flow chart of the detection method is as follows figure 1 shown)

[0025] (1) Preparation of standard solution: Accurately weigh 0.0100g of octylphenol ethoxylate and nonylphenol ethoxylate standard respectively, dissolve them in a 100mL volumetric flask with methanol, and prepare a compound with a concentration of 100mg / L Mix standard stock solutions. Pipette 0.01mL, 0.05mL, 0.1mL, 0.25mL, 0.50mL, and 1mL of the mixed standard stock solution into a 10mL volumetric flask, dilute to volume with methanol, and prepare octylphenol polyoxyethylene ether and nonylphenol polyoxyethylene The concentrations of standard solutions of vinyl ether series are: 0.10μg / mL, 0.50μg / mL, 1.00μg / mL, 2.50μg / mL, 5.00μg / mL and 10.00μg / mL to obtain a series of standard working solutions, which are stored at 2°C- 6 ℃, val...

Embodiment 2

[0046] In this embodiment, the detection method for the repeatability and standard addition recovery of the method of the present invention is as follows.

[0047] Adopt the sample standard addition recovery rate test, add the standard solution of three different concentrations of low, medium and high respectively in the sample and carry out standard addition rate test, each sample measures 5 times respectively, the condition of chromatographic analysis is the same as embodiment 1, calculates according to analysis result The standard addition recovery of octylphenol polyoxyethylene ether and nonylphenol polyoxyethylene ether in the water-based glue of this method and the relative standard deviation of measured value after the standard addition, the results are shown in table 2;

[0048] Table 2 Recovery and repeatability of octylphenol ethoxylates and nonylphenol ethoxylates in water-based adhesives (n=5)

[0049]

[0050] As can be seen from Table 2, at the three spiked le...

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Abstract

The invention relates to a determination method for content of polyoxyethylene octylphenol ether and polyoxyethylene nonyl phenyl ether in a water-based adhesive, and the method comprises the steps of sample solution preparation, liquid chromatography analysis, determination result calculation and the like. The optimized detection method has the advantages of short detection time, simple operation, high sensitivity, high recovery rate, good repeatability and the like. The chromatographic conditions of the method can well separate the chromatographic peak of the polyoxyethylene octylphenol ether and polyoxyethylene nonyl phenyl ether and the chromatographic peak of impurities, the method has good correlation, the limits of detection are respectively 0.34mug / gand 0.93 mug / g, the average recovery rates are respectively 96.8% and 81.9%, the average relative standard deviations of the sample test results are respectively 5.60% and 3.13%, and the method is high in recovery rate and better in repeatability.

Description

technical field [0001] The invention relates to a method for measuring the content of octylphenol polyoxyethylene ether and nonylphenol polyoxyethylene ether in water-based glue, and belongs to the technical field of physical and chemical inspection of water-based glue materials. Background technique [0002] Alkylphenol polyoxyethylene ethers (APEOs) are another large class of nonionic surfactants after fatty alcohol polyoxyethylene ethers. Because of their molecular structure containing both hydrophilic groups and hydrophobic groups, they have good Emulsification, wetting, permeability and foaming, washing, decontamination, antistatic and other functions, widely used in textiles, plastics, rubber, daily chemicals, medicine, paper, electronics and other fields. Among APEOs, nonylphenol polyoxyethylene ether (NPEO) is the most, accounting for more than 80%; followed by octylphenol polyoxyethylene ether (OPEO), accounting for more than 15%; dodecylphenol polyoxyethylene ether...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N30/02G01N30/06
Inventor 张洪非刘珊珊范子彦唐纲岭边照阳李中皓杨飞王颖张艳革
Owner CHINA NAT TOBACCO QUALITY SUPERVISION & TEST CENT
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