Study of reactive dyes and their hydrolyzed forms in a real trichromatic dyeing process by capillary electrophoresis with UV detection

IF 1.8 4区 化学 Q3 CHEMISTRY, ANALYTICAL
Zijie Lu, Jiashun Xu, Zhongqi Xu, Yi Zhong, Zhiping Mao, Weidong Meng
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Abstract

Detecting the concentration of reactive dyes and their hydrolyzed products is essential for controlling the dyeing process and is an important guide for upgrading and improving textile dyeing technology. In this study, capillary electrophoresis (CE) with UV detection was for the first time applied in a real trichromatic dyeing process to provide qualitative and quantitative determination of reactive dyes and their hydrolyzed forms. Here, three original reactive dyes (SES-Cl-red-195, SES-Cl-yellow-145, and SES-Cl-blue-194), their vinyl sulfone forms (VS-Cl-red-195, VS-Cl-yellow-145, and VS-Cl-blue-194), and complete hydrolyzed forms (HES-OH-red-195, HES-OH-yellow-145, and HES-OH-blue-194) could be baseline separated in our developed BGE comprised of 10.0 mol/L Na2B4O7, 15% (V/V) ACN at pH 8.50 that adjusted by 0.50 mol/L H3BO3. The LODs (S/N = 3) of nine analytes ranged from 0.3 to 1.3 mg/L, and high sensitivities were achieved with UV detection. The RSDs of peak area and migration time were in the ranges of 1.4–3.8% and 0.39–1.29%, which indicated the CE methods were reliable for studying different dye forms in complex dye baths, and for evaluating dyeing process quality. Thus, the percentage of dye-uptake in single and trichromatic combination dyes was calculated based on the concentration of the original and their vinyl sulfone and hydrolyzed forms, and the result was consistent with the traditional UV–Vis method.

Graphical abstract

Abstract Image

利用毛细管电泳和紫外检测法研究实际三色染色过程中的活性染料及其水解形式。
检测活性染料及其水解产物的浓度对于控制染色过程至关重要,也是提升和改进纺织品染色技术的重要指南。本研究首次将毛细管电泳(CE)与紫外检测相结合,应用于实际的三色染色过程,对活性染料及其水解产物进行定性和定量测定。在这里,三种原始活性染料(SES-Cl-红-195、SES-Cl-黄-145 和 SES-Cl-蓝-194)、它们的乙烯基砜形式(VS-Cl-红-195、VS-Cl-黄-145 和 VS-Cl-蓝-194)和完全水解形式(HES-OH-红-195、HES-OH-黄-145 和 HES-OH-蓝-194)可以在我们开发的 BGE 中进行基线分离,BGE 由 10.0 mol/L Na2B4O7,15%(V/V)ACN,pH 值为 8.50,用 0.50 mol/L H3BO3 调节。九种分析物的检测限(S/N = 3)在 0.3 至 1.3 mg/L 之间,紫外检测灵敏度高。峰面积和迁移时间的 RSD 分别为 1.4%-3.8%和 0.39%-1.29%,这表明 CE 方法在研究复杂染浴中不同染料形态和评价染色工艺质量方面是可靠的。因此,根据原染料及其乙烯基砜和水解形式的浓度计算单色和三色组合染料的染料吸收百分比,结果与传统的紫外可见光方法一致。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Analytical Sciences
Analytical Sciences 化学-分析化学
CiteScore
2.90
自引率
18.80%
发文量
232
审稿时长
1 months
期刊介绍: Analytical Sciences is an international journal published monthly by The Japan Society for Analytical Chemistry. The journal publishes papers on all aspects of the theory and practice of analytical sciences, including fundamental and applied, inorganic and organic, wet chemical and instrumental methods. This publication is supported in part by the Grant-in-Aid for Publication of Scientific Research Result of the Japanese Ministry of Education, Culture, Sports, Science and Technology.
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