纺织学报 ›› 2019, Vol. 40 ›› Issue (8): 85-88.doi: 10.13475/j.fzxb.20180803505

• 染整与化学品 • 上一篇    下一篇

基于斜投影的纯羊毛毛线中酸性红26的快速检测

张景清, 粟晖(), 梁晓芸, 陈维骥, 姚志湘   

  1. 广西科技大学 生物与化学工程学院, 广西 柳州 545006
  • 收稿日期:2018-08-13 修回日期:2019-04-30 出版日期:2019-08-15 发布日期:2019-08-16
  • 通讯作者: 粟晖
  • 作者简介:张景清(1992—),男,硕士生。主要研究方向为化工过程分析技术。
  • 基金资助:
    广西自然科学基金项目(2015GXNSFAA139038);广西大学生创新创业训练计划项目(201710594166)

Rapid detection of banned dye Acid Red 26 in pure wool thread based on oblique projection

ZHANG Jingqing, SU Hui(), LIANG Xiaoyun, CHEN Weiji, YAO Zhixiang   

  1. School of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou, Guangxi 545006, China
  • Received:2018-08-13 Revised:2019-04-30 Online:2019-08-15 Published:2019-08-16
  • Contact: SU Hui

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摘要：

针对用传统方式检测纺织品中禁用染料操作难、成本高、耗时长、危害大等弊端,以禁用染料酸性红26为例,采用可见反射光强光谱分析法与化学计量学结合,基于斜投影建立了一种纯羊毛毛线中酸性红26的定量分析方法。结果表明:纯羊毛毛线中酸性红26的含量在0.17~5.11 mg/g范围内时,与利用斜投影算法从混合组分信号中切割出的酸性红26的信号线性关系良好,所建立标准曲线方程的决定系数为0.995 8,相对标准偏差为1.79%;利用该方法预测未知样本中酸性红26的含量,预测值与真实值的相对误差均小于10%,该方法分析速度快,且分析过程操作简单,可实现对酸性红26的无损检测。

关键词: 斜投影算法, 可见反射光强光谱, 纯羊毛毛线, 酸性红26, 快速检测

Abstract:

In order to overcome the shortcomings of conventional methods for detecting banned dyes on textiles of difficult operation, high cost, long time and great hazard, a quantitative analysis method of Acid Red 26 on wool thread was established based on the oblique projection construction algorithm using the combination of visible reflection intensity spectrum analysis and chemometrics. The results show that the linear degree of the standard curve equation is high in the range of 0.17-5.11 mg/g (coefficient of determination is 0.995 8, relative standard deliation is 1.79%). The relative error about the content of Acid Red 26 in the unknown sample is lower than 10%. The detection method is simple in operation, high in detection efficiency, and realizes rapid non-destructive detection of Acid Red 26.

Key words: oblique projection algorithm, visible light intensity spectrum, wool thread, Acid Red 26, rapid detection

中图分类号: 

  • TQ610.7

图1

标准样本预处理前后的光谱对比"

图2

酸性红26的标准曲线图"

表1

样本中酸性红26的含量"

编
号		 真实值/
(mg·g-1)		 预测值/
(mg·g-1)		 偏差/
(mg·g-1)		 相对误差/
%
1 0.65 0.63 -0.02 2.48
2 0.83 0.84 0.02 1.85
3 1.05 1.00 -0.05 5.14
4 1.38 1.27 -0.11 7.65
5 1.59 1.69 0.10 6.28
6 1.79 1.66 -0.13 7.03
7 1.85 1.74 -0.11 5.71
8 2.01 1.84 -0.17 8.23
9 2.15 2.34 0.20 9.09
10 2.36 2.31 -0.05 2.27
11 2.64 2.68 0.04 1.49
12 2.88 2.77 -0.11 3.65
13 2.96 2.95 -0.02 0.58
14 3.27 3.17 -0.10 2.93
15 3.96 3.61 -0.35 8.94
16 4.30 3.96 -0.34 7.86
17 4.37 4.14 -0.23 5.23
18 4.80 4.60 -0.20 4.18
19 4.67 4.38 -0.29 6.15
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