纺织学报 ›› 2022, Vol. 43 ›› Issue (06): 127-132.doi: 10.13475/j.fzxb.20210906906

• 染整与化学品 • 上一篇    下一篇

基于紫外光谱法的纯棉织物中氯菊酯含量检测方法

王宗乾1(), 程绿竹1, 金鲜花2, 夏丽萍2   

  1. 1.安徽工程大学 纺织服装学院, 安徽 芜湖 241000
    2.传化智联股份有限公司化学测试中心, 浙江 杭州 311215
  • 收稿日期:2021-09-22 修回日期:2022-01-10 出版日期:2022-06-15 发布日期:2022-07-15
  • 作者简介:王宗乾(1982—),男,教授,博士。主要研究方向为功能化纤维结构调控与成形技术。E-mail: wzqian@ahpu.edu.cn
  • 基金资助:
    安徽省高校中青年拔尖人才项目(gxbjZD2020075);安徽省学术和技术带头人及后备人选项目(2020H218);芜湖市科技计划项目(2020YF51);安徽省博士后科研项目(2021A486)

Testing method for permethrin content in cotton fabrics based on use of ultraviolet spectroscopy

WANG Zongqian1(), CHENG Lüzhu1, JIN Xianhua2, XIA Liping2   

  1. 1. School of Textile and Garment, Anhui Polytechnic University, Wuhu, Anhui 241000, China
    2. Chemical Test Center of Chuanhua Zhilian Co., Ltd., Hangzhou, Zhejiang 311215, China
  • Received:2021-09-22 Revised:2022-01-10 Published:2022-06-15 Online:2022-07-15

摘要:

为寻求更高效地测试纺织品中氯菊酯含量的方法,利用驱蚊整理剂以及浸轧工艺制备了不同质量浓度氯菊酯整理的纯棉织物,采用扫描电子显微镜、带积分球的紫外可见分光光谱仪、常规气相色谱仪对其微观形貌、光谱特征及氯菊酯负载量进行分析对比,并进一步对比测试耗时、样品需求量以及测试成本等指标。结果表明:氯菊酯整理纯棉织物在280 nm处出现强吸收,对应氯菊酯分子的紫外特征吸收,且吸光度值与织物中的氯菊酯负载量成正比,同时与气相色谱测试的棉织物中氯菊酯含量具有较好的拟合关系。紫外光谱法与气相色谱法测试结果的相对误差率和变异值相当,但紫外光谱法具有测试效率高,成本低的明显优势。

关键词: 氯菊酯, 紫外可见光谱, 气相色谱, 纯棉织物

Abstract:

To establish a more efficient method for detecting the content of permethrin in textiles, cotton fabrics containing different concentrations of permethrin were fabricated by padding process, and a comparative analysis of the permethrin-finished fabrics was presented in detail, using micromorphology, spectral characteristics and the loading of permethrin, scanning electron microscopy, ultraviolet-visible (UV-Vis) spectrometer with integrating sphere and the conventional gas chromatography. Further, the indices such as testing time, sample size and the testing cost were compared and evaluated. A strong absorption characteristic peak at 280 nm was observed, corresponings to the ultraviolet characteristic absorption of permethrin molecules. The value of absorbency is proportional to the loading of permethrin within the as-prepared fabric, which is consistent with the permethrin loading within the same fabric tested by using gas chromatography. The relative error and the value of variation detected by using UV-Vis spectroscopy are similar to the results achieved using gas chromatography. However, the UV-Vis spectroscopy testing method has obvious advantages of high efficiency and low cost.

Key words: permethrin, ultraviolet-visible spectrum, gas chromatography, pure cotton fabric

中图分类号: 

  • TS195.5

图1

氯菊酯整理纯棉织物的流程图"

图2

氯菊酯标准品的气相色谱及标准曲线"

图3

不同浓度氯菊酯整理纯棉织物的SEM照片"

图4

整理纯棉织物中氯菊酯的峰面积及含量"

图5

氯菊酯整理前后棉织物的紫外可见光谱图"

图6

氯菊酯整理前后纯棉织物的紫外光谱图"

图7

整理棉织物中氯菊酯含量与光谱强度的拟合曲线"

表1

氯菊酯含量的测试精准度和其他指标的对比"

测试
方法
样品
编号
平均相
对误差
值×100
离散系
数CV
值/%
单次测
试耗
时/min
单次测
试所需
量/g
测试
成本
紫外光
谱法
1 4.2 3.7 ≤ 2 0.1
2 3.9 2.9
3 2.5 2.2
气相色
谱法
1 2.9 2.9 ≥ 70 5.0
2 4.0 3.4
3 3.0 2.9
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