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Citation: LOU Chaoyan, JIANG Lei, DUAN Fen, WANG Guoqin, ZHANG Peimin, ZHI Mingyu, ZHU Yan. Simultaneous determination of eight allergenous disperse dyes in blended carpet by supercritical fluid chromatography-ultraviolet detection[J]. Chinese Journal of Chromatography, ;2017, 35(4): 453-457. doi: 10.3724/SP.J.1123.2016.11017 shu

Simultaneous determination of eight allergenous disperse dyes in blended carpet by supercritical fluid chromatography-ultraviolet detection

LOU Chaoyan ^1, ,
JIANG Lei ² ,
DUAN Fen ³ ,
WANG Guoqin ³ ,
ZHANG Peimin ¹ ,
ZHI Mingyu ⁴ ,
ZHU Yan ¹

1.
Department of Chemistry, Zhejiang University, Hangzhou 310000, China;
2.
Zhejiang Textile Testing Research Institute, Hangzhou 310013, China;
3.
Zhejiang Furniture and Hardware Research Institute, Hangzhou 310013, China;
4.
Hangzhou Vocational & Technical College, Hangzhou 310018, China

Received Date: 17 November 2016

Fund Project: Key Laboratory of Furniture Inspection Technology of Zhejiang Province (No. 2016J11).

An effective analytical method based on supercritical fluid chromatography (SFC) was developed for the simultaneous determination of eight allergenous disperse dyes (disperse yellow 1, disperse yellow 49, disperse yellow 9, disperse orange 37/76, disperse red 1, disperse orange 1, disperse orange 3 and disperse brown 1). Blended carpet samples with various colours were ultrasonically extracted for 30 min with methanol at 70℃. Then the extracts were filtrated by 0.45 μm filters. Under the optimum conditions of supercritical CO₂-methanol modifier (90:10, v/v) as mobile phase, 440 nm as UV detection wavelength, the eight allergenous disperse dyes were separated completely within 12 min. The eight allergenous disperse dyes exhibited satisfactory linearity with correlation coefficients (r²) of 0.9992-0.9998. The limits of detection (LOD, S/N=3) were 0.05-0.10 mg/L. The developed method was validated for the determination of the eight allergenous disperse dyes in blended carpets with good spiked recoveries ranged from 95.6% to 104.2%. The relative standard deviations (RSDs) of the peak areas of the eight allergenous disperse dyes were all less than 1.2% (n=5). The method is convenient, rapid, sensitive, accurate, selective, and adaptable to the application for detecting the eight allergenous disperse dyes in blended carpets.
- supercritical fluid chromatography (SFC),
- ultraviolet detection,
- allergenous disperse dyes,
- blended carpet
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