A simple and effective determination of methyl red in wastewater samples by UV–Vis spectrophotometer with matrix matching calibration strategy after vortex assisted deep eutectic solvent based liquid phase extraction and evaluation of green profile

Atsever, Nihan; Borahan, Tülay; Girgin, Ayça; Chormey, Dotse Selali; Bakırdere, Sezgin

doi:10.1016/j.microc.2020.105850

Cited by 13 publications

(3 citation statements)

References 43 publications

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“…The analytical procedure of the proposed SFODME-SDIC method was carried out in 15-mL centrifuge tubes. The optimum pH condition for methyl red was adapted from the study performed by Atsever et al, where the optimum pH and volume of the buffer solution were determined to be 4.0 and 1.0 mL, respectively [ 44 ]. In this procedure, 8.0 mL of aqueous standard solution or sample and 1.0 mL of pH 4.0 buffer solution were pipetted into the 15-mL centrifuge tube.…”

Section: Methodsmentioning

confidence: 99%

Combination of smartphone digital image colorimetry and UV-Vis spectrophotometry as detection systems with solidified floating organic drop microextraction as preconcentration method for the quantification of methyl red in wastewater samples

BOMBOM,

GİRGİN,

ZAMAN

et al. 2023

Turkish Journal of Chemistry

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In this study, a portable smartphone-based digital image colorimetric system (SDIC) was designed and integrated with a solidified floating organic drop microextraction method (SFODME) for the quantification of methyl red in textile wastewater samples. The RGB (red, green, and blue) data were evaluated for each captured image, and the green channel was selected for quantification due to its linear response for the analyte. Under optimal conditions, an acceptable linear range was recorded for the analyte. The proposed method recorded a limit of detection (LOD) value of 0.046 mg/L. The developed microextraction method was also combined with UV-Vis spectrophotometry, which recorded an LOD value of 0.012 mg/L. Real sample analysis was carried out with textile wastewater samples to check the applicability/accuracy of the developed method, using a matrix matching calibration strategy to enhance quantification accuracy. Satisfactory percent recoveries in the range of 93.3%–114.3% and 92%–92.7% were recorded for the SFODME-SDIC and SFODME-UV methods, respectively.

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Section: Methodsmentioning

confidence: 99%

Combination of smartphone digital image colorimetry and UV-Vis spectrophotometry as detection systems with solidified floating organic drop microextraction as preconcentration method for the quantification of methyl red in wastewater samples

BOMBOM,

GİRGİN,

ZAMAN

et al. 2023

Turkish Journal of Chemistry

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“…A series of adsorption-desorption cycle tests were conducted on the adsorbent in order to evaluate its repeatable usefulness. The adsorption capacity was calculated by using Equation (7).…”

Section: Adsorption Experimentsmentioning

confidence: 99%

“…Many common azo dyes, such as malachite green (MG), Congo red (CR), methyl orange (MO), methyl blue (MB), and rhodamine B (RhB), are not readily decomposed, may be poisonous, and may be hazardous to human health [2]. Methods of treating dyes include electrocatalytic degradation, microbial degradation, adsorption, chemical oxidation, and coagulation or flocculation [3][4][5][6][7]. Many approaches are unavailable for large-scale use due to financial and environmental limitations.…”

Section: Introductionmentioning

confidence: 99%

Effective Removal of Dyes from Wastewater by Osmanthus Fragrans Biomass Charcoal

Xie,

Diao,

et al. 2023

Molecules

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The exploration of low-cost, high-performance adsorbents is a popular research issue. In this work, a straightforward method that combined hydrothermal with tube firing was used to produce Osmanthus fragrans biomass charcoal (OBC) from low-cost osmanthus for dye adsorption in water. The study examined the parameters of starting concentration, pH, and duration, which impacted the process of adsorption of different dyes by OBC. The analysis showed that the adsorption capacities of OBC for six dyes: malachite green (MG, C0 = 800 mg/L, pH = 7), Congo red (CR, C0 = 1000 mg/L, pH = 8), rhodamine B (RhB, C0 = 500 mg/L, pH = 6), methyl orange (MO, C0 = 1000 mg/L, pH = 7), methylene blue (MB, C0 = 700 mg/L, pH = 8), and crystalline violet (CV, C0 = 500 mg/L, pH = 7) were 6501.09, 2870.30, 554.93, 6277.72, 626.50, and 3539.34 mg/g, respectively. The pseudo-second-order model and the Langmuir isotherm model were compatible with the experimental findings, which suggested the dominance of ion exchange and chemisorption. The materials were characterized by using XRD, SEM, FTIR, BET, and XPS, and the results showed that OBC had an outstanding specific surface area (2063 m2·g–1), with potential adsorption mechanisms that included electrostatic mechanisms, hydrogen bonding, and π-π adsorption. The fact that the adsorption capacity did not drastically decrease after five cycles of adsorption and desorption suggests that OBC has the potential to be a dye adsorbent.

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Green Analytical Chemistry Metrics and Life-Cycle Assessment Approach to Analytical Method Development

Abdelrahman

2022

Green Chemical Analysis and Sample Preparations

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A simple and effective determination of methyl red in wastewater samples by UV–Vis spectrophotometer with matrix matching calibration strategy after vortex assisted deep eutectic solvent based liquid phase extraction and evaluation of green profile

Cited by 13 publications

References 43 publications

Combination of smartphone digital image colorimetry and UV-Vis spectrophotometry as detection systems with solidified floating organic drop microextraction as preconcentration method for the quantification of methyl red in wastewater samples

Combination of smartphone digital image colorimetry and UV-Vis spectrophotometry as detection systems with solidified floating organic drop microextraction as preconcentration method for the quantification of methyl red in wastewater samples

Effective Removal of Dyes from Wastewater by Osmanthus Fragrans Biomass Charcoal

Green Analytical Chemistry Metrics and Life-Cycle Assessment Approach to Analytical Method Development

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