Rapid Screening and Determination of Banned Aromatic Amines in Dyed Textiles by Chromogenic Reaction

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Important Dates

Conference:

Apr. 22-24, 2019

Full Paper Due: Mar. 18, 2019

Abstract Due: Mar. 18, 2019

Audience Registration Due:
Apr. 22, 2019

Presentations of The Spring World Congress on Engineering and Technology (SCET 2017)

● Rapid Screening and Determination of Banned Aromatic Amines in Dyed Textiles by Chromogenic Reaction
Author(s)
Xiwen Ye
Affiliation(s)
Shandong Entry-Exit Inspection and Quarantine Bureau
KEYWORDS
Banned Aromatic Amines, Dyed Textiles, Chromogenic Reaction
ABSTRACT
A rapid and simple method utilizing a chromogenic reaction on filter paper is introduced for the qualitative screening of banned aromatic amines released from azo dyes. On the basis of the principle of the reaction between primary amines and aldehydes, p-dimethylaminobenzaldehyde was used as a color reagent for the direct detection of 24 carcinogenic aromatic amines and aniline without any chromatographic instruments under optimized experimental conditions. Compared with standard procedures, the absolute time of analysis was substantially reduced in the present work: from 150 min to 40 min. Additionally, the detection limit for all of the aromatic amines in this study was less than 15 mg/kg. More than 700 dyed textile samples were tested using the developed method. Various banned aromatic amines typically tested using standard methods were also detected in some of these samples; the false positive rate was 28%. These results show that the chromo-genic reaction using p-dimethylaminobenzaldehyde as a chromogenic reagent is a reliable and sensitive analytical method for the rapid and low-cost detection of aromatic amines on textile products.