Journal of Textile Research ›› 2019, Vol. 40 ›› Issue (8): 85-88.doi: 10.13475/j.fzxb.20180803505

• Dyeing and Finishing & Chemicals • Previous Articles     Next Articles

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 E-mail:suhui@gxust.edu.cn

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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

CLC Number: 

  • TQ610.7

Fig.1

Spectral comparison before (a) and after (b) pretreatment"

Fig.2

Standard curve of Acid Red 26"

Tab.1

Content of Acid Red 26 in samples"

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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