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Arjomandi-Behzad L, Rofouei MK, Badiei A, Ghasemi JB. Simultaneous removal of crystal violet and methyl green in water samples by functionalised SBA-15. INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY 2022; 102:5919-5935. [DOI: 10.1080/03067319.2020.1804895] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 07/25/2020] [Indexed: 06/19/2023]
Affiliation(s)
| | | | - Alireza Badiei
- School of Chemistry, College of Science, University of Tehran, Tehran, Iran
| | - Jahan B. Ghasemi
- School of Chemistry, College of Science, University of Tehran, Tehran, Iran
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Hosseini E, Ghasemi JB, Shekarchi M. Simultaneous Determination of Adulterants in Dietary Food Supplements Using Multivariate Data Analysis after Preconcentration with Novel Nanosorbents and Chromatographic Measurement. J AOAC Int 2022; 105:1309-1318. [DOI: 10.1093/jaoacint/qsac052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 03/31/2022] [Accepted: 04/20/2022] [Indexed: 11/14/2022]
Abstract
Abstract
Background
The increasing popularity of dietary supplements and, consequently, related adulteration emphasizes the rising need to examine the association of food supplements with fraud. Intentional or unintentional fraud in food supplements by hazardous chemicals compounds is a problem that many countries are struggling with. Much effort have been made to effectively and reliably control the quality of food supplements.
Objective
Due to the importance of the subject, an analytical method for the simultaneous and reliable detection and quantitative determination of three key adulterants in dietary food supplements was developed. The proposed method benefits from analytical methods and multivariate calibration methods to progress the determination of adulterants in a complex matrix.
Methods
HPLC assisted by multivariate curve resolution-alternating least square (MCR-ALS) analysis was used to detect adulterants in real samples after separation and preconcentration using novel mesoporous carbon nanoparticles. Solid-phase extraction (SPE) optimization was accomplished by central composite design (CCD). In order to obtain the best results, the MCR-ALS model was compared with the parallel factor analysis 2 (PARAFAC2) model and validated by estimation of linearity, detection limits, and recovery.
Results
The detection limits and linear dynamics were calculated as 1.5, 4.27, and 4.77 µg/mL, and 1–50, 5–20, and 5–20 µg/mL for caffeine, ephedrine, and fluoxetine, respectively. Mean recovery for determination of caffeine, ephedrine, and fluoxetine using the developed method was reported as 101.75, 91.7, and 92.36, respectively.
Conclusion
The results showed that to avoid negative health outcomes associated with the excessive consumption of adulterated food supplements releasing such products should be carefully regulated. The developed method was validated using statistical factors and showed acceptable and reliable results.
Highlights
(1) The application of MCR-ALS coupled with HPLC-Diode-Array Detection data sets allowed the simultaneous identification and quantification of three key adulterants (caffeine, ephedrine, and fluoxetine) in dietary food supplements. (2) A small amount of the novel adsorbent was successfully used to preconcentrate the trace amounts of adulterants in samples. (3) This method benefits from the chemometrics tools and experimental design to significantly reduce the use of toxic solvents and complicated instruments to propose a less time-consuming method for quantification of multicomponents in the presence of uncalibrated interferents.
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Affiliation(s)
- Ensie Hosseini
- University of Tehran, Faculty of Chemistry , , Tehran 6718773654, Iran
- Department of Analytical Chemistry , , Tehran 6718773654, Iran
| | - Jahan B Ghasemi
- University of Tehran, Faculty of Chemistry , , Tehran 6718773654, Iran
- Department of Analytical Chemistry , , Tehran 6718773654, Iran
| | - Maryam Shekarchi
- Food and Drug Control Laboratories and Food and Drug Laboratory Research Center , Tahran 1439956311, Iran
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Jinadasa B, Moreda-Piñeiro A, Fowler SW. Ultrasound-Assisted Extraction in Analytical Applications for Fish and Aquatic Living Resources, a Review. FOOD REVIEWS INTERNATIONAL 2021. [DOI: 10.1080/87559129.2021.1967378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- B.K.K.K. Jinadasa
- Analytical Chemistry Laboratory (ACL), National Aquatic Resources Research & Development Agency (NARA), Colombo-15, Sri Lanka
- Le Blanc-Mesnil, France
| | - Antonio Moreda-Piñeiro
- Department of Analytical Chemistry, Nutrition, & Bromatology, Faculty Of Chemistry, Universidade De Santiago De Compostela. Avenida Das Ciencias, Santiago De Compostela, Spain
| | - Scott W. Fowler
- School of Marine & Atmospheric Sciences, Stony Brook University, Stony Brook,New York, USA
- Institute Bobby, Cap d’Ail, France
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de Souza PR, do Carmo Ribeiro TM, Lôbo AP, Tokumoto MS, de Jesus RM, Lôbo IP. Removal of bromophenol blue anionic dye from water using a modified exuviae of Hermetia illucens larvae as biosorbent. ENVIRONMENTAL MONITORING AND ASSESSMENT 2020; 192:197. [PMID: 32100128 DOI: 10.1007/s10661-020-8110-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Accepted: 01/21/2020] [Indexed: 06/10/2023]
Abstract
Organic dyes originating from liquid effluents from the textile industries are harmful to the environment. They are toxic and reduce the penetration of light into aquatic environments. In this study, a biosorbent was produced from the exuviae of Hermetia illucens (Linnaeus) larvae and used to remove organic anionic dyes from an aqueous medium. The solids were characterized in terms of thermal stability, chemical structure, morphology, and porosity using thermogravimetric (TGA), differential thermal analysis (DTA), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and N2 adsorption-desorption. There were studied the effects of pH and dosage of the adsorbent on the adsorption of the bromophenol blue dye, used as a model molecule. The adsorption kinetics was studied with Lagergren's pseudo-first-order rate model. The maximum adsorbed amount was 571 mg g-1 according to Langmuir's model. The adsorption process was evaluated as exothermic and spontaneous and was classified as physical adsorption. The prepared biosorbent was tested in five consecutive adsorption cycles achieving 99% dye removal at each stage. This demonstrated the maintenance of adsorption efficiency and desorption capacity. These results suggest that prepared biosorbent have potential applications in the treatment of effluents from textile industries.
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Affiliation(s)
- Pablo Rodrigues de Souza
- Bioenergy and Environment Group, State University of Santa Cruz, Jorge Amado Highway, Km 16, Ilheus, BA, 45662-900, Brazil
| | | | - Ailton Pinheiro Lôbo
- Bioenergy and Environment Group, State University of Santa Cruz, Jorge Amado Highway, Km 16, Ilheus, BA, 45662-900, Brazil
| | - Miriam Sanae Tokumoto
- Bioenergy and Environment Group, State University of Santa Cruz, Jorge Amado Highway, Km 16, Ilheus, BA, 45662-900, Brazil
| | - Raildo Mota de Jesus
- Research Group on Analytical Chemistry of Southern Bahia, State University of Santa Cruz, Jorge Amado Highway, Km 16, Ilheus, BA, 45662-900, Brazil
| | - Ivon Pinheiro Lôbo
- Bioenergy and Environment Group, State University of Santa Cruz, Jorge Amado Highway, Km 16, Ilheus, BA, 45662-900, Brazil.
- Research Group on Analytical Chemistry of Southern Bahia, State University of Santa Cruz, Jorge Amado Highway, Km 16, Ilheus, BA, 45662-900, Brazil.
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Menghwar P, Yilmaz E, Soylak M. Development of an ultrasonic-assisted restricted access supramolecular solvent-based liquid phase microextraction (UA-RAS-LPME) method for separation-preconcentration and UV-VIS spectrophotometric detection of curcumin. SEP SCI TECHNOL 2018. [DOI: 10.1080/01496395.2018.1462389] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Pertab Menghwar
- Faculty of Sciences, Department of Chemistry, Erciyes University, Kayseri, Turkey
- National Centre of Excellence in Analytical Chemistry, Universıty of Sindh, Jamshoro, Pakistan
| | - Erkan Yilmaz
- Faculty of Pharmacy, Department of Analytical Chemistry, Erciyes University, Kayseri, Turkey
| | - Mustafa Soylak
- Faculty of Sciences, Department of Chemistry, Erciyes University, Kayseri, Turkey
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Tian Y, Zhang H, Xu L, Chen M, Chen F. Self-assembled monolayers of bimetallic Au/Ag nanospheres with superior surface-enhanced Raman scattering activity for ultra-sensitive triphenylmethane dyes detection. OPTICS LETTERS 2018; 43:635-638. [PMID: 29444040 DOI: 10.1364/ol.43.000635] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Accepted: 01/04/2018] [Indexed: 06/08/2023]
Abstract
The bimetallic Au/Ag self-assembled monolayers (SAMs) were constructed by using mono-dispersed Au/Ag nanospheres (Ag: 4.07%-34.53%) via evaporation-based assembly strategy. The composition-dependent surface-enhanced Raman scattering (SERS) spectroscopy revealed that the Au/Ag (Ag: 16.83%) SAMs provide maximized activity for triphenylmethane dyes detection. With the inter-metallic synergy, the optimized SAMs enable the Raman intensity of crystal violet molecules to be about 223 times higher than that of monometallic Au SAMs. Moreover, the SERS signals with excellent uniformity (<5% variation) are sensitive down to 10-13 M concentrations because of the optimal matching between bimetallic plasmon resonance and the incident laser wavelength.
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