Accurate and sensitive determination of harmful aromatic amine products of azo dyes in wastewater and textile samples by GC–MS after multivariate optimization of binary solvent dispersive liquid-liquid microextraction

Özkan, Betül Çiçek; Fırat, Merve; Chormey, Dotse Selali; Bakırdere, Sezgin

doi:10.1016/j.microc.2018.10.023

Cited by 23 publications

(7 citation statements)

References 16 publications

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“…Aromatic amines are used mainly as precursors in the manufacture of dyes, persisting as impurities in the final product, and they can also be formed from the cleavage of dyes after their release into the environment [33]. Aromatic amines exhibiting genotoxic and mutagenic effects [34] remain of public health concern since they have been detected in clothing textiles [35] and environmental samples [36,37]. Target aromatic amines are not detected in the tested TDE.…”

Section: Discussionmentioning

confidence: 99%

Occurrence of Textile Dyes and Metals in Tunisian Textile Dyeing Effluent: Effects on Oxidative Stress Status and Histological Changes in Balb/c Mice

Methneni

Ezdini

Abdeljelil

et al. 2021

IJMS

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Although it is known that textile wastewater contains highly toxic contaminants whose effects in humans represent public health problems in several countries, studies involving mammal species are scarce. This study was aimed to evaluate the toxicity profile of 90-days oral administration of textile dyeing effluent (TDE) on oxidative stress status and histological changes of male mice. The TDE was collected from the textile plant of Monastir, Tunisia and evaluated for the metals, aromatic amines, and textile dyes using analytical approaches. Metal analysis by ICP-MS showed that the tested TDE exhibited very high levels of Cr, As, and Sr, which exceeded the wastewater emission limits prescribed by WHO and Tunisian authority. The screening of TDE through UPLC-MS/MS confirmed the presence of two textile dyes: a triphenylmethane dye (Crystal violet) and a disperse azo dye (Disperse yellow 3). Exposure to TDE significantly altered the malondialdehyde (MDA), Conjugated dienes (CDs), Sulfhydryl proteins (SHP) and catalase levels in the hepatic and renal tissues. Furthermore, histopathology observation showed that hepatocellular and renal lesions were induced by TDE exposure. The present study concluded that TDE may involve induction of oxidative stress which ensues in pathological lesions in several vital organs suggesting its high toxicity. Metals and textile dyes may be associated with the observed toxicological effects of the TDE. These pollutants, which may have seeped into surrounding rivers in Monastir city, can cause severe health malaise in wildlife and humans.

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Section: Discussionmentioning

confidence: 99%

Occurrence of Textile Dyes and Metals in Tunisian Textile Dyeing Effluent: Effects on Oxidative Stress Status and Histological Changes in Balb/c Mice

Methneni

Ezdini

Abdeljelil

et al. 2021

IJMS

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“…This tip effect combines with electric field, which can enhance microcurrent response obviously under equal voltage condition, thus improving gas sensing properties. Therefore, this method is beneficial to gas detection [ 14 , 15 ].…”

Section: Methodsmentioning

confidence: 99%

Double-UV Photoionizaion Detector with Graphene Oxide-Coated Electrodes

Zhou

Zhang

et al. 2022

Applied Bionics and Biomechanics

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The structure of a photoionization detector was optioned and researched. In order to solve the problem of the photoionization detector’ lamp surface residue interference, a new structure of the self-cleaning double-UV detector was adopted. At the same time, the air flow field of the detector was simulated by the finite element method. Through analyzing the results of the simulation experiment, further optimization of the gas channel for the microdetector was carried out, and the ionization chamber with axial flow structure was finally chosen. The new nanomaterial, graphene oxide was used to modify the surface of the collector plate of detector to improve the gas sensitivity and sensitivity of the photoionization detector. Through the experimental analysis, the performance indexes of detector were described in detail. The minimum detection limit of the detector is 2.5 × 10 − 7 . The linearity response of the detector was analyzed, and the linear correlation coefficient reaches 0.993. The experimental results show that the double-UV detector can improve the overall gas sensing characteristics and provide an ideal detection unit for volatile organic compound (VOC) gas detection.

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“…Azo dyes are the most common colorants in foods, 1,2 clothing, 3,4 cosmetics, 5,6 and many other consumer products. Some azo dyes have been shown to be carcinogenic and mutagenic.…”

Section: Introductionmentioning

confidence: 99%