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Büyükpınar Ç, Yazıcı E, San N, Komesli OT, Bakırdere S. Determination of nickel in daphne tea extract and lake water samples by flame atomic absorption spectrophotometry with a zirconium-coated T-shaped slotted quartz tube-atom trap and photochemical vapor generation sample introduction. Environ Monit Assess 2021; 193:627. [PMID: 34487242 DOI: 10.1007/s10661-021-09430-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Accepted: 08/27/2021] [Indexed: 06/13/2023]
Abstract
Nickel determination is important because of its use in many industrial areas and its negative effects on human health. In this study, an ultraviolet-based photochemical vapor generation (UV-PVG) setup was combined with a T-shaped zirconium-coated slotted quartz tube-atom trapping (T-SQT-AT) apparatus to boost the sensitivity of a flame atomic absorption spectrophotometer for nickel determination. Nickel was separated from the sample matrix by converting it into its volatile species prior to online preconcentration by trapping on the zirconium-coated T-SQT inner surface. Analytical performance was maximized by optimizing all variable conditions. The limit of detection (LOD) and limit of quantification (LOQ) were found as 10 and 33 µg/L, respectively. Daphne tea and lake water samples were analyzed under optimum conditions, and there was no detectable nickel in the samples. For this purpose, spiking experiments were carried out for the samples in order to evaluate the applicability and accuracy of the method. The percent recovery values calculated for the two samples spiked at three different concentrations ranged between 90 and 112%. To our best knowledge, this is the first study in literature where UV-PVG was combined with T-SQT-AT for the determination of nickel in daphne tea and lake water samples prior to FAAS determination.
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Affiliation(s)
- Çağdaş Büyükpınar
- Department of Chemistry, Yıldız Technical University, 34220, İstanbul, Turkey
| | - Elif Yazıcı
- Department of Chemistry, Yıldız Technical University, 34220, İstanbul, Turkey
| | - Nevim San
- Department of Chemistry, Yıldız Technical University, 34220, İstanbul, Turkey
| | - Okan Tarık Komesli
- Department of Environmental Engineering, Atatürk University, 25250, Erzurum, Turkey
| | - Sezgin Bakırdere
- Department of Chemistry, Yıldız Technical University, 34220, İstanbul, Turkey.
- Turkish Academy of Sciences (TÜBA), Vedat Dalokay Street, No: 112, Çankaya, 06670, Ankara, Turkey.
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2
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Ayyıldız MF, Şaylan M, Bozyiğit GD, Chormey DS, Özdemir OK, Büyükpınar Ç, Bakırdere S. Surface modified iron magnetic nanoparticles assisted Fenton digestion and extraction method for cadmium determination. Anal Biochem 2021; 629:114309. [PMID: 34270997 DOI: 10.1016/j.ab.2021.114309] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 07/11/2021] [Accepted: 07/12/2021] [Indexed: 11/15/2022]
Abstract
This study presents a Fenton digestion method for milk samples based on UV irradiation for cadmium determination using flame atomic absorption spectrometry. The method was developed as an alternative to microwave digesters, using very basic apparatus and easy to acquire chemicals. Fenton digestion process was performed by the help of citric acid coated magnetic nanoparticles. Optimum conditions of the digestion process were applied to milk samples to evaluate analytical performance of the method. Limit of detection and limit of quantification values calculated for cadmium in milk were 0.53 and 1.8 mg/L, respectively. The method was applied to three different milk samples to validate the method's suitability and accuracy. Percent recovery values calculated for the samples spiked at two different concentrations ranged between 86 and 111%. Due to differences in the content of the spiked and control/standard milk samples, exact matrix matching calibration strategy using the same brand of milk sample in the preparation of calibration standard was employed and the accuracy of cadmium quantification was greatly enhanced (≈100%).
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Affiliation(s)
| | - Meltem Şaylan
- Yıldız Technical University, Department of Chemistry, 34220, İstanbul, Turkey
| | - Gamze Dalgıç Bozyiğit
- Yıldız Technical University, Department of Environmental Engineering, 34220, İstanbul, Turkey
| | | | - Oğuz Kaan Özdemir
- Yıldız Technical University, Department of Metallurgical and Materials Engineering, 34220, İstanbul, Turkey
| | - Çağdaş Büyükpınar
- Yıldız Technical University, Department of Chemistry, 34220, İstanbul, Turkey
| | - Sezgin Bakırdere
- Yıldız Technical University, Department of Chemistry, 34220, İstanbul, Turkey; Turkish Academy of Sciences (TÜBA), Vedat Dalokay Street, No: 112, Çankaya, 06670, Ankara, Turkey.
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3
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Büyükpınar Ç, San N, Komesli OT, Bakırdere S. Combination of an Efficient Photochemical Vapor Generation System and Flame Atomic Absorption Spectrophotometry for Trace Nickel Determination in Wastewater Samples. ANAL LETT 2021. [DOI: 10.1080/00032719.2020.1805749] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Çağdaş Büyükpınar
- Faculty of Art and Science, Chemistry Department, Yıldız Technical University, İstanbul, Turkey
| | - Nevim San
- Faculty of Art and Science, Chemistry Department, Yıldız Technical University, İstanbul, Turkey
| | - Okan T. Komesli
- Department of Environmental Engineering, Atatürk University, Erzurum, Turkey
| | - Sezgin Bakırdere
- Faculty of Art and Science, Chemistry Department, Yıldız Technical University, İstanbul, Turkey
- Turkish Academy of Sciences (TÜBA), Çankaya, Ankara, Turkey
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4
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Büyükpınar Ç, Bodur S, San N, Komesli OT, Bakırdere S. Photochemical Vapor Generation Based Accurate Determination of Cadmium in Wastewater Using Novel Photoreactor and Gas-Liquid Separators Using Flame Atomic Absorption Spectrometry with Matrix Matching Calibration. ANAL LETT 2020. [DOI: 10.1080/00032719.2020.1858308] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Çağdaş Büyükpınar
- Department of Chemistry, Yıldız Technical University, Istanbul, Turkey
| | - Süleyman Bodur
- Department of Chemistry, Yıldız Technical University, Istanbul, Turkey
| | - Nevim San
- Department of Chemistry, Yıldız Technical University, Istanbul, Turkey
| | - Okan Tarık Komesli
- Department of Environmental Engineering, Atatürk University, Erzurum, Turkey
| | - Sezgin Bakırdere
- Department of Chemistry, Yıldız Technical University, Istanbul, Turkey
- Turkish Academy of Sciences (TÜBA), Ankara, Turkey
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5
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Dotse Selali Chormey, Zaman BT, Maltepe E, Büyükpınar Ç, Bulgurcuoğlu AE, Turak F, Erulaş FA, Bakırdere S. Simultaneous Determination of Harmful Aromatic Amine Products of Azo Dyes by Gas Chromatography–Mass Spectrometry. J Anal Chem 2020. [DOI: 10.1134/s1061934820100044] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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6
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Özcan R, Büyükpınar Ç, Bakırdere S. Determination of fipronil and bixafen pesticides residues using gas chromatography mass spectroscopy with matrix matching calibration strategy after binary dispersive liquid-liquid microextraction. J Environ Sci Health B 2020; 55:1041-1047. [PMID: 32811300 DOI: 10.1080/03601234.2020.1808417] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The objective of this study was to determine bixafen and fipronil residues in domestic and industrial wastewater, soil and mint samples by binary dispersive liquid-liquid microextraction method (BDLLME) prior to gas chromatography-mass spectrometry (GC-MS). Extraction efficiency for the selected analytes was improved by optimizing the parameters such as solvent type, ratio and volume, dispersive solvent type/volume, mixing type and duration to increase overall analytical performance. Under the optimum chromatographic and extraction conditions, limits of detection values for bixafen and fipronil were determined as 7.3 and 6.1 µg L-1, respectively. Spiking experiments were performed for domestic and industrial wastewater, soil and mint samples to evaluate applicability and accuracy of the proposed method. Recovery results for the samples were calculated in the range of 89.4%-112.6% via matrix matching calibration strategy. It was determined that the detection power of GC-MS system was improved 7.8 times for bixafen and 119 times for fipronil over LOD comparisons of conventional GC-MS and B-DLLME-GC-MS systems.
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Affiliation(s)
- Rümeysa Özcan
- Department of Chemistry, Yıldız Technical University, İstanbul, Turkey
| | - Çağdaş Büyükpınar
- Department of Chemistry, Yıldız Technical University, İstanbul, Turkey
| | - Sezgin Bakırdere
- Department of Chemistry, Yıldız Technical University, İstanbul, Turkey
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7
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Öztürk Er E, Dalgıç Bozyiğit G, Büyükpınar Ç, Bakırdere S. Magnetic Nanoparticles Based Solid Phase Extraction Methods for the Determination of Trace Elements. Crit Rev Anal Chem 2020; 52:231-249. [DOI: 10.1080/10408347.2020.1797465] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Elif Öztürk Er
- Chemical Engineering Department, Yıldız Technical University, İstanbul, Turkey
| | - Gamze Dalgıç Bozyiğit
- Faculty of Civil Engineering, Department of Environmental Engineering, Yıldız Technical University, İstanbul, Turkey
| | - Çağdaş Büyükpınar
- Department of Chemistry, Yıldız Technical University, İstanbul, Turkey
| | - Sezgin Bakırdere
- Department of Chemistry, Yıldız Technical University, İstanbul, Turkey
- Turkish Academy of Sciences (TÜBA), Ankara, Turkey
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8
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Kapukıran F, Yılmaz Ö, Tekin Z, Büyükpınar Ç, Özdoğan N, Bakırdere S. Determination of Indium in Lettuce Samples Using Hydrogen Supported-T-cut-slotted Quartz Tube-atom Trap-flame Atomic Absorption Spectrometry. CHEM LETT 2020. [DOI: 10.1246/cl.190907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Fatih Kapukıran
- Bülent Ecevit University, Institute of Science, Environmental Engineer Department, 67100, Zonguldak, Turkey
| | - Özge Yılmaz
- Yıldız Technical University, Department of Chemistry, 34220 İstanbul, Turkey
| | - Zeynep Tekin
- Yıldız Technical University, Department of Chemistry, 34220 İstanbul, Turkey
| | - Çağdaş Büyükpınar
- Yıldız Technical University, Department of Chemistry, 34220 İstanbul, Turkey
| | - Nizamettin Özdoğan
- Bülent Ecevit University, Institute of Science, Environmental Engineer Department, 67100, Zonguldak, Turkey
| | - Sezgin Bakırdere
- Yıldız Technical University, Department of Chemistry, 34220 İstanbul, Turkey
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9
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Şahin İ, Durak BY, Sağsöz O, Büyükpınar Ç, Bakırdere S. Optimization of T-shape slotted quartz tube with exit holes-atom trap-flame atomic absorption spectrophotometry system for the accurate and sensitive determination of tellurium in tap water. Environ Monit Assess 2019; 192:61. [PMID: 31865447 DOI: 10.1007/s10661-019-8043-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Accepted: 12/16/2019] [Indexed: 06/10/2023]
Abstract
Tellurium has been widely used in industrial processes and daily life products, and can cause serious health problems upon exposure. Therefore, determination of tellurium in real-life samples is very crucial. In this study, an accurate, environmentally friendly, and inexpensive analytical method was developed to determine trace levels of tellurium in water samples. To lower the detection limits, system parameters including flame type, acetylene flow rate, slotted quartz tube (T-SQT) height, and trapping period were optimized. Under the optimum conditions, the limit of detection (LOD) and quantification (LOQ) were calculated as 14.1 ng/mL and 47.1 ng/mL, respectively. For recovery studies, the optimized T-SQT-AT-FAAS method was applied to tap water samples to determine trace levels of tellurium and recovery results were found between 91.1 and 111.3%. Relative standard deviation value (%RSD) of the developed method was found to be less than 5.0% even for the lowest concentration in calibration plot, specifying good accuracy and high applicability of the method for water samples. Graphical abstract .
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Affiliation(s)
- İpek Şahin
- Department of Chemistry, Yıldız Technical University, 34220, İstanbul, Turkey
| | - Büşra Yılmaz Durak
- Department of Chemistry, Yıldız Technical University, 34220, İstanbul, Turkey
| | - Oğuzhan Sağsöz
- Department of Chemistry, Yıldız Technical University, 34220, İstanbul, Turkey
| | - Çağdaş Büyükpınar
- Department of Chemistry, Yıldız Technical University, 34220, İstanbul, Turkey
| | - Sezgin Bakırdere
- Department of Chemistry, Yıldız Technical University, 34220, İstanbul, Turkey.
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10
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Büyükpınar Ç, San N, Komesli OT, Bakırdere S. Accurate, sensitive, and precise determination of cobalt in soil matrices by the combination of batch type gas-liquid separator-assisted photochemical vapor generation and atomic absorption spectrophotometry. Environ Monit Assess 2019; 191:313. [PMID: 31037521 DOI: 10.1007/s10661-019-7486-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2019] [Accepted: 04/16/2019] [Indexed: 06/09/2023]
Abstract
Determination of cobalt at low concentrations is an important issue because of its potential harmful effects on human health. Although flame atomic absorbance spectrometry (FAAS) is a fast and cheap method, it has high detection limits compared to other methods due to low nebulizer efficiency. In this study, the sensitivity, accuracy, and precision of the conventional FAAS were tried to be improved for cobalt determination using a photochemical vapor generation (PVG) system equipped with a batch type gas-liquid separator (BTGLS). The system parameters including organic acid type and concentration, UV irradiation period, mixing type, atomizer temperature, carrier gas flow rate, and sample volume were optimized to improve the detection power. The limits of detection and quantification were found to be 8.7 and 28.9 μg L-1, respectively. The low relative standard deviation results indicated high precision. Applicability and accuracy of the method to soil samples was determined by recovery studies and percent recoveries were obtained between 98.9-107.0%. Graphical abstract Please provide caption for the graphical abstract.PVG-BT-GLS-AAS system .
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Affiliation(s)
- Çağdaş Büyükpınar
- Department of Chemistry, Yıldız Technical University, 34349, Istanbul, Turkey
| | - Nevim San
- Department of Chemistry, Yıldız Technical University, 34349, Istanbul, Turkey
| | - Okan Tarık Komesli
- Department of Environmental Engineering, Atatürk University, 25250, Erzurum, Turkey
| | - Sezgin Bakırdere
- Department of Chemistry, Yıldız Technical University, 34349, Istanbul, Turkey.
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11
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Unutkan T, Koyuncu İ, Diker C, Fırat M, Büyükpınar Ç, Bakırdere S. Accurate and Sensitive Analytical Strategy for the Determination of Antimony: Hydrogen Assisted T-Shaped Slotted Quartz Tube-Atom Trap-Flame Atomic Absorption Spectrometry. Bull Environ Contam Toxicol 2019; 102:122-127. [PMID: 30470949 DOI: 10.1007/s00128-018-2504-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Accepted: 11/18/2018] [Indexed: 06/09/2023]
Abstract
Antimony is known to have some adverse health effects on human health. Flame atomic absorption spectrometry (FAAS) is a widely used instrumental for the determination of antimony and other metals. However, it lacks the sensitivity to determine these metals at trace levels. This study was aimed at overcoming this setback by using hydrogen assisted T-shaped slotted quartz tube technique to preconcentrate and determine antimony by FAAS. All the system parameters were optimized to enhance the detection power of the system. Under the optimum experimental conditions, the limits of detection and quantification were found to be 0.75 and 2.49 µg L-1, respectively with R2 value of 0.9999. Accuracy of the developed method was validated by experimental results agreeing to the certified value of a standard reference material. Recovery studies were also carried out to determine the method's applicability to tap and mineral water samples, and the results obtained were appreciable.
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Affiliation(s)
- Tuğçe Unutkan
- Department of Chemical Engineering, Yıldız Technical University, 34349, Istanbul, Turkey
| | - İkbal Koyuncu
- Department of Chemistry, Yıldız Technical University, 34349, Istanbul, Turkey
| | - Cansu Diker
- Department of Chemistry, Yıldız Technical University, 34349, Istanbul, Turkey
| | - Merve Fırat
- Department of Chemistry, Yıldız Technical University, 34349, Istanbul, Turkey
| | - Çağdaş Büyükpınar
- Department of Chemistry, Yıldız Technical University, 34349, Istanbul, Turkey
| | - Sezgin Bakırdere
- Department of Chemistry, Yıldız Technical University, 34349, Istanbul, Turkey.
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12
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Deniz S, Kasa A, Sel S, Büyükpınar Ç, Bakırdere S. Sensitive and Accurate Determination of Cobalt at Trace Levels by Slotted Quartz Tube-Flame Atomic Absorption Spectrometry Following Preconcentration with Dispersive Liquid–Liquid Microextraction. ANAL LETT 2018. [DOI: 10.1080/00032719.2018.1493737] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Serenay Deniz
- Department of Chemistry, Yıldız Technical University, Istanbul, Turkey
| | - Aylin Kasa
- Department of Chemistry, Yıldız Technical University, Istanbul, Turkey
| | - Sabriye Sel
- Department of Chemistry, Yıldız Technical University, Istanbul, Turkey
| | - Çağdaş Büyükpınar
- Department of Chemistry, Yıldız Technical University, Istanbul, Turkey
| | - Sezgin Bakırdere
- Department of Chemistry, Yıldız Technical University, Istanbul, Turkey
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13
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Bodur S, Erarpat S, Selali Chormey D, Büyükpınar Ç, Bakırdere S. Determination of Bismuth in Bottled and Mineral Water Samples at Trace Levels by T-Shaped Slotted Quartz tube-Atom Trap-Flame Atomic Absorption Spectrometry. ANAL LETT 2018. [DOI: 10.1080/00032719.2018.1477790] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Affiliation(s)
- Süleyman Bodur
- Department of Chemistry, Yıldız Technical University, Istanbul, Turkey
| | - Sezin Erarpat
- Department of Chemistry, Yıldız Technical University, Istanbul, Turkey
| | | | - Çağdaş Büyükpınar
- Department of Chemistry, Yıldız Technical University, Istanbul, Turkey
| | - Sezgin Bakırdere
- Department of Chemistry, Yıldız Technical University, Istanbul, Turkey
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14
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Chormey DS, Fırat M, Büyükpınar Ç, Erulaş F, Komesli OT, Turak F, Bakırdere S. Accurate determination of pesticides, hormones and endocrine disruptor compounds in complex environmental samples using matrix dilution and matrix matching with dispersive liquid–liquid microextraction. PURE APPL CHEM 2018. [DOI: 10.1515/pac-2018-0206] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Quantitative determination of contaminants in environmental samples is usually hampered by low analyte recovery which results from the complex nature of the sample matrix. This study presents the application of a developed dispersive liquid–liquid microextraction method for the determination of 12 analytes in environmental samples including sea water, fresh water (lake, well and tap water), brackish water and soil samples. Matrix matched standards were used to compensate for the low analyte recovery recorded by the conventional calibration method. The effect of matrix dilution on analyte recovery was also tested. All matrix matched and matrix diluted spiked recoveries were done concurrently with calibration standards prepared in deionized water. Percent recoveries recorded for the analytes according to deionized water calibration standards ranged between 66 and 137%. Matrix matching and matrix dilution yielded close to 100% recovery results, but the later lowered the detection limit according to the dilution factor.
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Affiliation(s)
- Dotse Selali Chormey
- Yıldız Technical University , Department of Chemistry , 34349 İstanbul , Turkey , Phone: +902123834245
| | - Merve Fırat
- Yıldız Technical University , Department of Chemistry , 34349 İstanbul , Turkey
| | - Çağdaş Büyükpınar
- Yıldız Technical University , Department of Chemistry , 34349 İstanbul , Turkey
| | - Fatih Erulaş
- Siirt University, Faculty of Education , Department of Science Education , 56100 Siirt , Turkey
| | - Okan Tarık Komesli
- Ataturk University , Department of Environmental Engineering , 25250 Erzurum , Turkey
| | - Fatma Turak
- Yıldız Technical University , Department of Chemistry , 34349 İstanbul , Turkey
| | - Sezgin Bakırdere
- Yıldız Technical University , Department of Chemistry , 34349 İstanbul , Turkey , Phone: +902123834245
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15
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Yolcu ŞM, Fırat M, Chormey DS, Büyükpınar Ç, Turak F, Bakırdere S. Development and Validation of a Sensitive Method for Trace Nickel Determination by Slotted Quartz Tube Flame Atomic Absorption Spectrometry After Dispersive Liquid-Liquid Microextraction. Bull Environ Contam Toxicol 2018; 100:715-719. [PMID: 29411047 DOI: 10.1007/s00128-018-2283-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 01/18/2018] [Indexed: 06/08/2023]
Abstract
In this study, dispersive liquid-liquid microextraction was systematically optimized for the preconcentration of nickel after forming a complex with diphenylcarbazone. The measurement output of the flame atomic absorption spectrometer was further enhanced by fitting a custom-cut slotted quartz tube to the flame burner head. The extraction method increased the amount of nickel reaching the flame and the slotted quartz tube increased the residence time of nickel atoms in the flame to record higher absorbance. Two methods combined to give about 90 fold enhancement in sensitivity over the conventional flame atomic absorption spectrometry. The optimized method was applicable over a wide linear concentration range, and it gave a detection limit of 2.1 µg L-1. Low relative standard deviations at the lowest concentration in the linear calibration plot indicated high precision for both extraction process and instrumental measurements. A coal fly ash standard reference material (SRM 1633c) was used to determine the accuracy of the method, and experimented results were compatible with the certified value. Spiked recovery tests were also used to validate the applicability of the method.
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Affiliation(s)
- Şükran Melda Yolcu
- Department of Chemistry, Yıldız Technical University, 34349, Istanbul, Turkey
| | - Merve Fırat
- Department of Chemistry, Yıldız Technical University, 34349, Istanbul, Turkey
| | | | - Çağdaş Büyükpınar
- Department of Chemistry, Yıldız Technical University, 34349, Istanbul, Turkey
| | - Fatma Turak
- Department of Chemistry, Yıldız Technical University, 34349, Istanbul, Turkey
| | - Sezgin Bakırdere
- Department of Chemistry, Yıldız Technical University, 34349, Istanbul, Turkey.
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16
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Uslu H, Büyükpınar Ç, Unutkan T, Serbest H, SAN N, Turak F, Bakırdere S. A novel analytical method for sensitive determination of lead: Hydrogen assisted T-shape slotted quartz tube-atom trap-flame atomic absorption spectrometry. Microchem J 2018. [DOI: 10.1016/j.microc.2017.10.015] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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17
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Kasa NA, Chormey DS, Büyükpınar Ç, Turak F, Budak TB, Bakırdere S. Determination of cadmium at ultratrace levels by dispersive liquid-liquid microextraction and batch type hydride generation atomic absorption spectrometry. Microchem J 2017. [DOI: 10.1016/j.microc.2017.03.035] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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18
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Turan NB, Chormey DS, Büyükpınar Ç, Engin GO, Bakirdere S. Quorum sensing: Little talks for an effective bacterial coordination. Trends Analyt Chem 2017. [DOI: 10.1016/j.trac.2017.03.007] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Chormey DS, Büyükpınar Ç, Turak F, Komesli OT, Bakırdere S. Simultaneous determination of selected hormones, endocrine disruptor compounds, and pesticides in water medium at trace levels by GC-MS after dispersive liquid-liquid microextraction. Environ Monit Assess 2017; 189:277. [PMID: 28527034 DOI: 10.1007/s10661-017-6003-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2017] [Accepted: 05/09/2017] [Indexed: 06/07/2023]
Abstract
The need to enhance food safety has led to major advancements in pesticide productions, and though many benefits have been gained, environmental contamination has also risen from these chemicals that tend to persist in the environment. Some pesticides, together with other chemicals commonly called endocrine disruptor compounds, block the receptor sites of hormones or mimic displaced hormones, leading to imbalanced hormonal levels that result in health disorders and diseases. These chemicals occur at trace levels and are not directly detected by conventional analytical methods. A dispersive liquid-liquid microextraction method was therefore developed for preconcentration of 12 analytes including hormones, endocrine disruptor compounds, and pesticides, to be analyzed by gas chromatography mass spectrometry. This was achieved by optimizing parameters such as extractor solvent type and amount, dispersive solvent type and amount, pH, and salt effect that affect extraction output. The limits of detection and quantification of the developed method were between 0.09 and 3.36 and 0.31 and 11.19 ng mL-1, respectively. The calibration plots of the analytes also showed good linearity and low percent relative standard deviations. Recovery studies were performed for tap water and wastewater samples, and the percent recoveries recorded were between 84 and 109%.
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Affiliation(s)
| | - Çağdaş Büyükpınar
- Department of Chemistry, Yıldız Technical University, 34349, İstanbul, Turkey
| | - Fatma Turak
- Department of Chemistry, Yıldız Technical University, 34349, İstanbul, Turkey
| | - Okan Tarık Komesli
- Department of Environmental Engineering, Ataturk University, 25250, Erzurum, Turkey
| | - Sezgin Bakırdere
- Department of Chemistry, Yıldız Technical University, 34349, İstanbul, Turkey.
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Büyükpınar Ç, Maltepe E, Chormey DS, San N, Bakırdere S. Determination of nickel in water and soil samples at trace levels using photochemical vapor generation-batch type ultrasonication assisted gas liquid separator-atomic absorption spectrometry. Microchem J 2017. [DOI: 10.1016/j.microc.2017.01.024] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Bakırdere S, Chormey DS, Büyükpınar Ç, San N, Keyf S. Determination of Lead in Drinking and Wastewater by Hydride Generation Atomic Absorption Spectrometry. ANAL LETT 2016. [DOI: 10.1080/00032719.2015.1127380] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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