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Determination of ADH in textiles using the HPLC-MS/MS method and the study of its adsorption behaviour towards formaldehyde

机译:使用HPLC-MS / MS法测定纺织品中的ADH及其对甲醛的吸附行为的研究

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摘要

In the textile industry, formaldehyde-based resins are used as finishers to make the fabrics crease-resistant, which are the main source of formaldehyde in textiles. In our practical study, there are cases that prove that textile products containing adipic dihydrazide (ADH) will continuously adsorb formaldehyde from the surrounding environment during storage. In this study, a high performance liquid chromatographytandem mass spectrometry method was established for the precise determination of ADH in textiles. The method was optimized in terms of instrument conditions, extraction temperature, extraction time, and extraction mode. Under optimum test conditions, ADH was determined precisely with the linearity range of 0.05-2 mg L-1 and correlation coefficient (R-2) of 0.9993. Recovery rate and repeatability were tested; the data showed that the recovery rate of ADH in textiles was in the range of 85-100%, and the RSD (relative standard deviation) was less than 10%. The ADH-positive textile samples were placed in designed environments for some time to adsorb formaldehyde. The adsorbed amounts of formaldehyde in the textile samples first increase and then decrease with time. The maximum amount of formaldehyde a sample can adsorb increases with an increase in its ADH content and will stop increasing once its ADH content exceeds 1700 mg kg(-1). The placement environment has a little effect on the maximum adsorption capacity of the samples towards formaldehyde, but can significantly affect the adsorption rate and equilibrium adsorption capacity.
机译:在纺织工业中,甲醛的树脂用作精加工,使织物抗皱抗皱,这是纺织品中甲醛的主要来源。在我们的实际研究中,存在案件证明含有己二酸二酰肼(ADH)的纺织品将在储存期间连续吸附来自周围环境的甲醛。在该研究中,建立了一种高效液相色谱法和质谱法,用于精确测定纺织品中的ADH。该方法在仪器条件,提取温度,提取时间和提取模式方面进行了优化。在最佳试验条件下,ADH精确地确定为0.05-2mg L-1的线性范围和0.9993的相关系数(R-2)。测试回收率和重复性;数据显示,纺织品中ADH的回收率在85-100%的范围内,RSD(相对标准偏差)小于10%。将Adh阳性纺织品样品置于设计的环境中,一段时间才能吸附甲醛。纺织品样品中的甲醛的吸附量首先增加,然后随时间降低。甲醛样品的最大量随着其ADH含量的增加而增加,一旦其ADH含量超过1700mg kg(-1),就会停止增加。放置环境对样品对甲醛的最大吸附容量有点影响,但可以显着影响吸附速率和平衡吸附能力。

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  • 来源
    《RSC Advances》 |2018年第6期|共7页
  • 作者单位

    Shenzhen Acad Metrol &

    Qual Inspect Shenzhen 518000 Peoples R China;

    Shenzhen Acad Metrol &

    Qual Inspect Shenzhen 518000 Peoples R China;

    Shenzhen Acad Metrol &

    Qual Inspect Shenzhen 518000 Peoples R China;

    Shenzhen Acad Metrol &

    Qual Inspect Shenzhen 518000 Peoples R China;

    Embry China Garments Co Ltd Shenzhen 518000 Guangdong Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

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