Chemical Structure Analysis for Azo Type Disperse Dyes by Mass Spectroscopy and Detection of Dyestuff in Textile Products Causing Allergic Contact Dermatitis

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  • Sasaki Kazumi
    Product Safety Technology Center, National Institute of Technology and Evaluation (NITE)
  • Sakai Mari
    Chemical Management Center, National Institute of Technology and Evaluation (NITE)
  • Matusita Kazuma
    Standardization Center, Product Safety Technology Center, National Institute of Technology and Evaluation (NITE)
  • Masuda Yoko
    Chemical Management Center, National Institute of Technology and Evaluation (NITE)
  • Sato Koremaro
    Chemical Management Center, National Institute of Technology and Evaluation (NITE)

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Other Title
  • 質量分析法によるアゾ系分散染料化学構造解析及び繊維製品中のアレルギー性接触皮膚炎原因染料の検出
  • シツリョウ ブンセキホウ ニ ヨル アゾケイ ブンサン センリョウ カガク コウゾウ カイセキ オヨビ センイ セイヒンチュウ ノ アレルギーセイ セッショク ヒフエン ゲンイン センリョウ ノ ケンシュツ

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Abstract

Azo-type disperse dyes are considered to be one of the causative agents of the allergic contact dermatitis caused by textile products. It was difficult to identify disperse dyes dyed in textile products, because of a large variety of them. We measured the mass spectra of disperse dyes known to be allergenic. In addition, we developed a method for determining the chemical structures of azo-type disperse dyes that have specific chemical structures for dyeing and coloring by the mass spectra. The developed method was applied to eight cases of textile products causing allergic contact dermatitis. The dyed disperse dyes were purified by high-performance liquid chromatography (HPLC), and the mass spectra were obtained using a direct probe. These results showed that dyes unrecognized as sensitizing disperse dyes develop allergic contact dermatitis. Our study suggests that this method is effective to identify those disperse dyes that cause allergic contact dermatitis.

Journal

  • BUNSEKI KAGAKU

    BUNSEKI KAGAKU 57 (10), 833-850, 2008

    The Japan Society for Analytical Chemistry

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