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Obma A, Bumrungpuech R, Hemwech P, Detsangiamsak S, Wirasate S, Hauser PC, Chantiwas R. Efficient separation of organic anions in beverages using aminosilane-functionalized capillary electrophoresis with contactless conductivity detection. Anal Chim Acta 2024; 1316:342815. [PMID: 38969420 DOI: 10.1016/j.aca.2024.342815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 04/04/2024] [Accepted: 06/01/2024] [Indexed: 07/07/2024]
Abstract
BACKGROUND Capillary electrophoresis (CE) has the advantage of rapid anion analysis, when employing a reverse electroosmotic flow (EOF). The conventional CE method utilizes dynamic coatings with surfactants like cetyltrimethylammonium bromide (CTAB) in the run buffer to reverse the EOF. However, this method suffers from very slow equilibration leading to drifting effective migration times of the analyte anions, which adversely affects the identification and quantification of peaks. Permanent coating of the capillary surface may obviate this problem but has been relatively little explored. Thus, permanent capillary surface modification by the covalent binding of 3-aminopropyltriethoxysilane (APTES) was studied as an alternative. RESULTS This study investigates the effect of APTES concentration for surface functionalization on EOF mobility, separation efficiency, and reproducibility of anion separation. The performance data was complemented by X-ray photoelectron spectroscopy (XPS) and contact angle (CA) measurements. The XPS measurements showed that the coverage with APTES was dependent on its concentration in the coating solution. The XPS measurements correlated well with the EOF values determined for the capillaries tested. A standard mixture of 21 anions could be baseline separated within 10 min in the capillaries with lower EOF, but not in the capillary with the highest EOF as the residence time of the analytes was too short in this case. Compared to conventional dynamic coating with CTAB, APTES-functionalized capillaries provide faster equilibration and long-term EOF stability. The application of APTES-functionalized capillaries in analyzing different beverages demonstrates the precision, reliability, and specificity in determining organic anions, providing valuable insights of their compositions. SIGNIFICANCE APTES coating on capillaries provides a facile approach to achieve a permanent reversal of the stable EOF to determine anions. The control of the coverage via the concentration of the reagent solution allows the tailoring of the EOF to different needs, a faster EOF for less complex samples where resolution is not challenging, while a lower EOF for higher complex samples where the focus is on separation efficiency. This enhancement in efficiency and sensitivity has been applied to analyzing organic acids in several beverages.
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Affiliation(s)
- Apinya Obma
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahidol University, Rama VI Rd., Bangkok, 10400, Thailand
| | - Rawiwan Bumrungpuech
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahidol University, Rama VI Rd., Bangkok, 10400, Thailand
| | - Pattamaporn Hemwech
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahidol University, Rama VI Rd., Bangkok, 10400, Thailand
| | - Sasinun Detsangiamsak
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahidol University, Rama VI Rd., Bangkok, 10400, Thailand
| | - Supa Wirasate
- Rubber Technology Research Centre, 999 Science Building 3, Phuttamonthon 4 Road, Salaya, Nakhon Pathom, 73170, Thailand
| | - Peter C Hauser
- The University of Basel, Department of Chemistry, Klingelbergstrasse 80, CH-4056, Basel, Switzerland
| | - Rattikan Chantiwas
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahidol University, Rama VI Rd., Bangkok, 10400, Thailand.
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Manandhar S, Yrjänä V, Leito I, Bobacka J. Determination of benzoate in cranberry and lingonberry by using a solid-contact benzoate-selective electrode. Talanta 2024; 274:125996. [PMID: 38574535 DOI: 10.1016/j.talanta.2024.125996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 03/15/2024] [Accepted: 03/25/2024] [Indexed: 04/06/2024]
Abstract
Benzoic acid is used as a preservative in processed food, and occasionally in cosmetics and pharmaceuticals, while benzoic acid occurs naturally in, e.g., cranberry and lingonberry. Therefore, the determination of benzoate is of interest for product quality assurance, food safety, and personal health. In this work, a solid-contact benzoate-selective electrode (benzoate-ISE) was developed by utilising poly(3,4-ethylenedioxythiophene) (PEDOT) as solid contact and a solvent polymeric membrane containing a 1,3-bis(carbazolyl)urea derivative as ionophore. The benzoate-ISE was characterised in parallel with an ionophore-free control-ISE by electrochemical impedance spectroscopy and potentiometry. The presence of the ionophore in the membrane improved the selectivity to benzoate. Benzoate-ISEs and control-ISEs were used further to determine the benzoate concentration in cranberry and lingonberry by standard addition. The results obtained with both types of ISEs were compared with those obtained by ion chromatography. The results obtained with benzoate-ISEs were consistent with those obtained with ion chromatography. On the contrary, the control-ISE (without ionophore) gave significantly higher benzoate concentrations, especially in the case of cranberry where the benzoate concentration was low (ca 0.2 g kg-1) compared to lingonberry (ca 1 g kg-1). Hence, the benzoate-selectivity of the ionophore was crucial to obtain a benzoate-ISE that was practically applicable for determination of benzoate concentrations in cranberry and lingonberry.
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Affiliation(s)
- Sajana Manandhar
- Laboratory of Molecular Science and Engineering, Johan Gadolin Process Chemistry Centre, Faculty of Science and Engineering, Åbo Akademi University, Henriksgatan 2, FI-20500, Turku, (Åbo), Finland; Institute of Chemistry, University of Tartu, Ravila 14a, 50411, Tartu, Estonia
| | - Ville Yrjänä
- Laboratory of Molecular Science and Engineering, Johan Gadolin Process Chemistry Centre, Faculty of Science and Engineering, Åbo Akademi University, Henriksgatan 2, FI-20500, Turku, (Åbo), Finland
| | - Ivo Leito
- Institute of Chemistry, University of Tartu, Ravila 14a, 50411, Tartu, Estonia
| | - Johan Bobacka
- Laboratory of Molecular Science and Engineering, Johan Gadolin Process Chemistry Centre, Faculty of Science and Engineering, Åbo Akademi University, Henriksgatan 2, FI-20500, Turku, (Åbo), Finland.
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Adımcılar V, Saygılı MT, Cansever MŞ, Öztekin N. Highly sensitive rapid determination of orotic acid in urine samples using a field-amplified sample stacking approach in capillary electrophoresis coupled with contactless conductivity detection. J Pharm Biomed Anal 2024; 238:115826. [PMID: 37922673 DOI: 10.1016/j.jpba.2023.115826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 10/25/2023] [Accepted: 10/26/2023] [Indexed: 11/07/2023]
Abstract
Orotic aciduria is a severe, hereditary, life-threatening condition, particularly in newborns. An increased orotic acid (OA) content in urine may be a strong indicator of this condition. In this study, we developed a rapid, simple, highly sensitive diagnostic method for use in monitoring the OA levels in urine samples, which were successfully determined using capillary electrophoresis combined with capacitively coupled contactless conductivity detection (CE-C4D). A straightforward analysis with an increased sensitivity towards OA and an analysis time of approximately 5 min were realized, and the limit of detection of the developed method was 0.014 mg/L in aqueous solution. The optimized composition of the separation electrolyte was 20 mM 2-(N-morpholino)ethanesulfonic acid/histidine with 0.1 mM cetyltrimethylammonium bromide at a pH of 6.5. The sensitivity of the developed method was significantly increased using a sample stacking approach with a 10% acetonitrile (v/v) plug solution. The method was validated, and satisfactory recoveries of 80.0-92.3% were obtained. The amounts of OA in five urine samples were successfully determined.
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Affiliation(s)
- Veselina Adımcılar
- Istanbul Technical University, Department of Chemistry, Maslak, 34469 Istanbul, Türkiye
| | - Merve Taşer Saygılı
- Istanbul Technical University, Department of Chemistry, Maslak, 34469 Istanbul, Türkiye
| | - Mehmet Şerif Cansever
- Department of Medical Services and Techniques, Vocational School of Health Services, Istanbul University-Cerrahpaşa, 34265 Istanbul, Türkiye
| | - Nevin Öztekin
- Istanbul Technical University, Department of Chemistry, Maslak, 34469 Istanbul, Türkiye.
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Tian T, Zhang WY, Zhou HY, Peng LJ, Zhou X, Zhang H, Yang FQ. A Catechol-Meter Based on Conventional Personal Glucose Meter for Portable Detection of Tyrosinase and Sodium Benzoate. BIOSENSORS 2022; 12:bios12121084. [PMID: 36551051 PMCID: PMC9776396 DOI: 10.3390/bios12121084] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 11/22/2022] [Accepted: 11/24/2022] [Indexed: 05/28/2023]
Abstract
In this study, the personal glucose meter (PGM) was first used as a fast and user-friendly meter for analyzing catechol (CA) based on the reduction of the mediator K3[Fe(CN)6] to K4[Fe(CN)6] in the glucose test strip. Then, an easy, low-cost, and convenient PGM-based method for detecting tyrosinase (TYR) activity and sodium benzoate (SBA) was developed on the basis of the TYR-catalyzed reaction. In this method, CA is oxidized to form o-benzoquinone by TYR, thereby reducing the residual amount of CA and the PGM readout. On the other hand, SBA can inhibit the oxidation of CA catalyzed by TYR and increase the residual amount of CA after the enzymatic reaction. Therefore, the activity of TYR is proportional to the difference in the PGM readout of CA, and the concentration of SBA is positively correlated with the residual amount of CA. After the relevant experimental conditions were systematically optimized, the proposed PGM-based method for the detection of TYR and SBA was successfully validated. The liner ranges are 1.0-103.3 U/mL and 6.25-1000 ppm, and the quantification limits are 1.0 U/mL and 6.25 ppm for TYR and SBA, respectively. Moreover, the spiked recovery tests in normal human serum and carbonate beverages (i.e., Cola, Sprite, and Fanta) were performed, and the recoveries (91.6-106.8%) further confirm the applicability of the PGM-based method in real sample analysis.
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Affiliation(s)
- Tao Tian
- Chongqing Key Laboratory of High Active Traditional Chinese Drug Delivery System, Chongqing Medical and Pharmaceutical College, Chongqing 401331, China
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
| | - Wei-Yi Zhang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
| | - Hang-Yu Zhou
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
| | - Li-Jing Peng
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
| | - Xi Zhou
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
| | - Hao Zhang
- Chongqing Key Laboratory of High Active Traditional Chinese Drug Delivery System, Chongqing Medical and Pharmaceutical College, Chongqing 401331, China
| | - Feng-Qing Yang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
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5
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Capillary and microchip electrophoresis with contactless conductivity detection for analysis of foodstuffs and beverages. Food Chem 2021; 375:131858. [PMID: 34923397 DOI: 10.1016/j.foodchem.2021.131858] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 11/29/2021] [Accepted: 12/10/2021] [Indexed: 12/17/2022]
Abstract
The paper provides a comprehensive survey of the use of capillary and microchip electrophoresis in combination with contactless conductivity detection (C4D) for the analysis of drinking water, beverages and foodstuffs. The introduction sets forth the fundamentals of conductivity detection anddescribes an axialC4Dversion. There is also a detailed discussion of the determination of inorganic ions, organic acids, fatty acids, amino acids, amines, carbohydrates, foreign substances and poisons from the standpoint of separation conditions, sample treatment and detection limits. Special attention is paid to the analysis of foodstuffs at microchips with emphasis on the employed material and connection of the microchip with the C4D. The review attempts to draw attention to modern trends, such as dual-opposite injection, field-enhanced sample injection, electromembrane extraction and on-line combination of microdialysis with CE. CE/C4D is characterised by high universality, high speed of analysis, simple sample preparation, small consumption of sample and other chemicals.
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6
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Ultrasensitive determination of underivatized adamantane analogs in biological fluids by capillary electrophoresis with contactless conductivity detection. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106602] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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7
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Going green in food analysis: A rapid and accurate method for the determination of sorbic acid and benzoic acid in foods by capillary ion chromatography with conductivity detection. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2020.110841] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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8
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Xue L, Chen L, Dong J, Cai L, Wang Y, Chen X. Dispersive liquid-liquid microextraction coupled with surface enhanced Raman scattering for the rapid detection of sodium benzoate. Talanta 2020; 208:120360. [DOI: 10.1016/j.talanta.2019.120360] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 09/03/2019] [Accepted: 09/14/2019] [Indexed: 11/24/2022]
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9
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Raoufi A, Ebrahimi M, Bozorgmehr MR. Application of response surface modeling and chemometrics methods for the determination of Atenolol, Metoprolol and Propranolol in blood sample using dispersive liquid–liquid microextraction combined with HPLC-DAD. J Chromatogr B Analyt Technol Biomed Life Sci 2019; 1132:121823. [DOI: 10.1016/j.jchromb.2019.121823] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2019] [Revised: 09/28/2019] [Accepted: 10/02/2019] [Indexed: 12/16/2022]
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10
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Timofeeva I, Kanashina D, Kirsanov D, Bulatov A. A heating-assisted liquid-liquid microextraction approach using menthol: Separation of benzoic acid in juice samples followed by HPLC-UV determination. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.04.040] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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11
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Yu M, Wen R, Jiang L, Huang S, Fang Z, Chen B, Wang L. Rapid analysis of benzoic acid and vitamin C in beverages by paper spray mass spectrometry. Food Chem 2018; 268:411-415. [PMID: 30064777 DOI: 10.1016/j.foodchem.2018.06.103] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2017] [Revised: 09/18/2017] [Accepted: 06/19/2018] [Indexed: 12/28/2022]
Abstract
A paper spray mass spectrometry (PS-MS) method has been developed for the rapid quantification of benzoic acid (BA) and vitamin C (VC) in beverages. Using BA-d5 as an internal standard (IS) to analyze BA and VC, the calibration curves ranged from 0.3 to 100 μg/mL for BA and 1 to 100 μg/mL for VC, the linearity was 0.9996 for BA and 0.9973 for VC. The limits of detection (LODs) and limits of quantitation (LOQs) were 0.1 μg/mL and 0.3 μg/mL for BA, 0.3 μg/mL and 1 μg/mL for VC, respectively. The recovery ranged from 91.1 to 106.7% for BA, 92.6 to 108.2% for VC. Compared with HPLC, there is no substantial difference in the quantification of BA and VC in samples, the accuracy was 95.7-102.2%, and the run time is far less than that of the HPLC method. The results indicated that PS-MS is a rapid, environmentally friendly and high-throughput method for the quantification of BA and VC.
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Affiliation(s)
- Muqian Yu
- Key Laboratory of Phytochemical R&D of Hunan Province and Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research, Ministry of Education, Hunan Normal University, Changsha 410081, PR China
| | - Ruizhi Wen
- Key Laboratory of Phytochemical R&D of Hunan Province and Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research, Ministry of Education, Hunan Normal University, Changsha 410081, PR China; College of Science, Central South University of Forestry and Technology, Changsha 410081, PR China
| | - Le Jiang
- Key Laboratory of Phytochemical R&D of Hunan Province and Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research, Ministry of Education, Hunan Normal University, Changsha 410081, PR China
| | - Si Huang
- Key Laboratory of Phytochemical R&D of Hunan Province and Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research, Ministry of Education, Hunan Normal University, Changsha 410081, PR China
| | - Zhengfa Fang
- Key Laboratory of Phytochemical R&D of Hunan Province and Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research, Ministry of Education, Hunan Normal University, Changsha 410081, PR China
| | - Bo Chen
- Key Laboratory of Phytochemical R&D of Hunan Province and Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research, Ministry of Education, Hunan Normal University, Changsha 410081, PR China.
| | - Liping Wang
- Hunan Analysis and Testing Center, Changsha 410004, PR China
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12
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Boublík M, Riesová M, Dubský P, Gaš B. Enhancement of the conductivity detection signal in capillary electrophoresis systems using neutral cyclodextrins as sweeping agents. Electrophoresis 2018; 39:1390-1398. [DOI: 10.1002/elps.201800027] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Revised: 02/08/2018] [Accepted: 02/08/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Milan Boublík
- Faculty of Science; Department of Physical and Macromolecular Chemistry; Charles University in Prague; Prague Czech Republic
| | - Martina Riesová
- Faculty of Science; Department of Physical and Macromolecular Chemistry; Charles University in Prague; Prague Czech Republic
| | - Pavel Dubský
- Faculty of Science; Department of Physical and Macromolecular Chemistry; Charles University in Prague; Prague Czech Republic
| | - Bohuslav Gaš
- Faculty of Science; Department of Physical and Macromolecular Chemistry; Charles University in Prague; Prague Czech Republic
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13
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Fujiyoshi T, Ikami T, Kikukawa K, Kobayashi M, Takai R, Kozaki D, Yamamoto A. Direct quantitation of the preservatives benzoic and sorbic acid in processed foods using derivative spectrophotometry combined with micro dialysis. Food Chem 2018; 240:386-390. [DOI: 10.1016/j.foodchem.2017.07.108] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2017] [Revised: 07/19/2017] [Accepted: 07/24/2017] [Indexed: 11/29/2022]
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14
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Sensitive Simultaneous Determination of Synthetic Food Colorants in Preserved Fruit Samples by Capillary Electrophoresis with Contactless Conductivity Detection. FOOD ANAL METHOD 2018. [DOI: 10.1007/s12161-017-1141-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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15
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Lan S, Feng J, Xiong Y, Tian S, Liu S, Kong L. Performance and Mechanism of Piezo-Catalytic Degradation of 4-Chlorophenol: Finding of Effective Piezo-Dechlorination. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:6560-6569. [PMID: 28447779 DOI: 10.1021/acs.est.6b06426] [Citation(s) in RCA: 107] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Piezo-catalysis was first used to degrade a nondye pollutant, 4-chlorophenol (4-CP). In this process, hydrothermally synthesized tetragonal BaTiO3 nano/micrometer-sized particles were used as the piezo-catalyst, and the ultrasonic irradiation with low frequency was selected as the vibration energy to cause the deformation of tetragonal BaTiO3. It was found that the piezoelectric potential from the deformation could not only successfully degrade 4-chlorophenol but also effectively dechlorinate it at the same time, and five kinds of dechlorinated intermediates, hydroquinone, benzoquinone, phenol, cyclohexanone, and cyclohexanol, were determined. This is the first sample of piezo-dechlorination. Although various active species, including h+, e-, •H, •OH, •O2-, 1O2, and H2O2, were generated in the piezoelectric process, it was confirmed by ESR, scavenger studies, and LC-MS that the degradation and dechlorination were mainly attributed to •OH radicals. These •OH radicals were chiefly derived from the electron reduction of O2, partly from the hole oxidation of H2O. These results indicated that the piezo-catalysis was an emerging and effective advanced oxidation technology for degradation and dechlorination of organic pollutants.
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Affiliation(s)
- Shenyu Lan
- School of Environmental Science and Engineering, Sun Yat-sen University , Guangzhou 510275, P. R. China
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou 510275, P. R. China
| | - Jinxi Feng
- School of Environmental Science and Engineering, Sun Yat-sen University , Guangzhou 510275, P. R. China
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou 510275, P. R. China
| | - Ya Xiong
- School of Environmental Science and Engineering, Sun Yat-sen University , Guangzhou 510275, P. R. China
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou 510275, P. R. China
| | - Shuanghong Tian
- School of Environmental Science and Engineering, Sun Yat-sen University , Guangzhou 510275, P. R. China
- Department of Chemistry, University of California-Riverside , Riverside, California 92521, United States
| | - Shengwei Liu
- School of Environmental Science and Engineering, Sun Yat-sen University , Guangzhou 510275, P. R. China
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou 510275, P. R. China
| | - Lingjun Kong
- School of Environmental Science and Engineering, Guangzhou University , Guangzhou 510006, P. R. China
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Wang J, Guo X, Jia L. A simple method for the determination of benzoic acid based on room temperature phosphorescence of 1-bromopyrene/γ-cyclodextrin complex in water. Talanta 2017; 162:423-427. [DOI: 10.1016/j.talanta.2016.10.070] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Revised: 10/07/2016] [Accepted: 10/17/2016] [Indexed: 11/30/2022]
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17
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Ji S, Li N, Qi L, Wang M. Poly(styrene-co-N-methacryloyl-l-phenylalanine methyl ester)-functionalized magnetic nanoparticles as sorbents for the analysis of sodium benzoate in beverages. J Sep Sci 2016; 40:466-471. [PMID: 27863035 DOI: 10.1002/jssc.201600869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Revised: 10/08/2016] [Accepted: 10/28/2016] [Indexed: 11/08/2022]
Abstract
In this study, poly(styrene-co-N-methacryloyl-l-phenylalanine methyl ester)-functionalized magnetic nanoparticles were constructed and used as magnetic solid-phase extraction sorbents for analysis of food preservatives in beverages. To prepare the poly(amino acid)-based sorbents, N-methacryloyl-l-phenylalanine methyl ester, and styrene served as the functional monomers and modified onto the magnetic nanoparticles via free radical polymerization. Interestingly, compared with propylparaben and potassium sorbate, the proposed poly(amino acid)-based sorbents showed a good selectivity to sodium benzoate. The adsorption capacity of the sorbents to sodium benzoate was 6.08 ± 0.31 mg/g. Moreover, the fast adsorption equilibrium could be reached within 5 min. Further, the resultant poly(amino acid)-based sorbents were applied in the analysis of sodium benzoate in real beverage samples. The results proved that the proposed magnetic solid-phase extraction sorbents have a great potential for the analysis of preservatives in food samples.
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Affiliation(s)
- Shilei Ji
- College of Food Sciences and Engineering, Shandong Agricultural University, Tai'an, Shandong, P. R. China.,Beijing National Laboratory for Molecular Sciences, Key Lab of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing, P. R. China
| | - Nan Li
- Beijing National Laboratory for Molecular Sciences, Key Lab of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing, P. R. China.,University of Chinese Academy of Sciences, Beijing, China P. R. China
| | - Li Qi
- Beijing National Laboratory for Molecular Sciences, Key Lab of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing, P. R. China.,University of Chinese Academy of Sciences, Beijing, China P. R. China
| | - Minglin Wang
- College of Food Sciences and Engineering, Shandong Agricultural University, Tai'an, Shandong, P. R. China
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18
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Scientific Opinion on the re‐evaluation of benzoic acid (E 210), sodium benzoate (E 211), potassium benzoate (E 212) and calcium benzoate (E 213) as food additives. EFSA J 2016. [DOI: 10.2903/j.efsa.2016.4433] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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19
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Campos CDM, deCampos Braga PA, Reyes FGR, daSilva JAF. Elimination of the artefact peaks in capillary electrophoresis determination of glutamate by using organic solvents in sample preparation. J Sep Sci 2015; 38:3781-7. [DOI: 10.1002/jssc.201500601] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Revised: 08/13/2015] [Accepted: 08/20/2015] [Indexed: 11/09/2022]
Affiliation(s)
| | | | | | - José Alberto Fracassi daSilva
- Chemistry Institute; State University of Campinas; Campinas SP Brazil
- Instituto Nacional de Ciência e Tecnologia em Bioanalítica (INCTBio); Campinas SP Brazil
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20
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An environment-friendly procedure for the high performance liquid chromatography determination of benzoic acid and sorbic acid in soy sauce. Food Chem 2015; 183:26-9. [DOI: 10.1016/j.foodchem.2015.03.025] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2014] [Revised: 02/06/2015] [Accepted: 03/09/2015] [Indexed: 11/20/2022]
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Application of capillary electrophoresis with electrokinetic supercharging and sweeping for the on-line preconcentration of phenolic acids. Anal Bioanal Chem 2015; 407:7093-100. [DOI: 10.1007/s00216-015-8869-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Revised: 06/03/2015] [Accepted: 06/18/2015] [Indexed: 11/27/2022]
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22
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Sensitive simultaneous determination of three sulfanilamide artificial sweeters by capillary electrophoresis with on-line preconcentration and contactless conductivity detection. Food Chem 2015; 188:446-51. [PMID: 26041216 DOI: 10.1016/j.foodchem.2015.04.060] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2013] [Revised: 01/30/2015] [Accepted: 04/17/2015] [Indexed: 11/22/2022]
Abstract
A sensitive method followed by capillary electrophoresis with on-line perconcentration and capacitively coupled contactless conductivity detection (CE-C(4)D) was evaluated as a novel approach for the determination of three sulfanilamide artificial sweeteners (acesulfame-K, sodium saccharin and sodium cyclamate) in beverages. The on-line preconcentration technique, namely field-amplified sample injection, coupled with CE-C(4)D were successfully developed and optimized. The separation was achieved within 10 min under the following conditions: an uncoated fused-silica capillary (45 cm × 50 μm i.d., Leff=40 cm), 20 mmol L(-1) HAc as running buffer, separation voltage of -12 kV, electrokinetic injection of -11 kV × 8 s. The detection limits of acesulfame-K, sodium saccharin and sodium cyclamate were 4.4, 6.7 and 8.8 μg L(-1), respectively. The relative standard deviation varied in the range of 3.0-5.0%. Results of this study show a great potential method for the fast screening of these artificial sweeteners contents in commercial beverages.
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23
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Wang L, Sun Y, Liu Q. Determination of Pharmaceuticals and Personal Care Product Components in Wastewater Using Capillary Electrophoresis Coupled with Solid Phase Extraction. ANAL LETT 2015. [DOI: 10.1080/00032719.2014.966377] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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24
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Jawaid S, Talpur FN, Nizamani SM, Memon NN, Afridi HI, Khaskheli AA. Rapid In Situ Esterification Method for the Determination of Benzoic Acid in Dairy Milk by GC-FID. FOOD ANAL METHOD 2014. [DOI: 10.1007/s12161-014-0024-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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25
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Lan S, Xiong Y, Tian S, Sun L, Xie T, Wang X, Kong L. Simultaneous Determination of Cu-EDTA and Its Degradation Intermediates by Capillary Electrophoresis with a Capacitively Coupled Contactless Conductivity Detector. ELECTROANAL 2014. [DOI: 10.1002/elan.201400335] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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26
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Feng Y, Su G, Zhao H, Cai Y, Cui C, Sun-Waterhouse D, Zhao M. Characterisation of aroma profiles of commercial soy sauce by odour activity value and omission test. Food Chem 2014; 167:220-8. [PMID: 25148982 DOI: 10.1016/j.foodchem.2014.06.057] [Citation(s) in RCA: 132] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2014] [Revised: 06/02/2014] [Accepted: 06/10/2014] [Indexed: 10/25/2022]
Abstract
Twenty-seven commercial soy sauces produced through three different fermentation processes (high-salt liquid-state fermentation soy sauce, HLFSS; low-salt solid-state fermentation soy sauce, LSFSS; Koikuchi soy sauce, KSS) were examined to identify the aroma compounds and the effect of fermentation process on the flavour of the soy sauce was investigated. Results showed that 129 volatiles were identified, of which 41 aroma-active components were quantified. The types of odorants occurring in the three soy sauce groups were similar, although their intensities significantly differed. Many esters and phenols were found at relatively high intensities in KSS, whereas some volatile acids only occurred in LSFSS. Furthermore, 23 aroma compounds had average OAVs>1, among which 3-methylbutanal, ethyl acetate, 4-hydroxy-2-ethyl-5-methyl-3(2H)-furanone, 2-methylbutanal and 3-(methylthio)propanal exhibited the highest average OAVs (>100). In addition, omission tests verified the important contribution of the products resulting from amino acid catabolism to the characteristic aroma of soy sauce.
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Affiliation(s)
- Yunzi Feng
- College of Light Industry and Food Sciences, South China University of Technology, Guangzhou 510640, China
| | - Guowan Su
- College of Light Industry and Food Sciences, South China University of Technology, Guangzhou 510640, China.
| | - Haifeng Zhao
- College of Light Industry and Food Sciences, South China University of Technology, Guangzhou 510640, China
| | - Yu Cai
- College of Light Industry and Food Sciences, South China University of Technology, Guangzhou 510640, China
| | - Chun Cui
- College of Light Industry and Food Sciences, South China University of Technology, Guangzhou 510640, China
| | - Dongxiao Sun-Waterhouse
- College of Light Industry and Food Sciences, South China University of Technology, Guangzhou 510640, China; School of Chemical Sciences, The University of Auckland, Private Bag 92019, Auckland, New Zealand
| | - Mouming Zhao
- College of Light Industry and Food Sciences, South China University of Technology, Guangzhou 510640, China.
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27
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Ren L, Meng M, Wang P, Xu Z, Eremin SA, Zhao J, Yin Y, Xi R. Determination of sodium benzoate in food products by fluorescence polarization immunoassay. Talanta 2014; 121:136-43. [DOI: 10.1016/j.talanta.2013.12.035] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2013] [Revised: 12/12/2013] [Accepted: 12/17/2013] [Indexed: 10/25/2022]
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28
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Kitagawa F, Otsuka K. Recent applications of on-line sample preconcentration techniques in capillary electrophoresis. J Chromatogr A 2014; 1335:43-60. [DOI: 10.1016/j.chroma.2013.10.066] [Citation(s) in RCA: 137] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2013] [Revised: 10/18/2013] [Accepted: 10/21/2013] [Indexed: 12/21/2022]
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29
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Montes RHO, Marra MC, Rodrigues MM, Richter EM, Muñoz RAA. Fast Determination of Ciprofloxacin by Batch Injection Analysis with Amperometric Detection and Capillary Electrophoresis with Capacitively Coupled Contactless Conductivity Detection. ELECTROANAL 2014. [DOI: 10.1002/elan.201300474] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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30
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Chen B, Zhang Y, Xie HL, Chen QM, Mai QH. Chiral Separation of Ofloxacin Enantiomers by Microchip Capillary Electrophoresis with Capacitively Coupled Contactless Conductivity Detection. J CHIN CHEM SOC-TAIP 2014. [DOI: 10.1002/jccs.201300500] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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31
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Online dynamic pH junction–sweeping for the determination of benzoic and sorbic acids in food products by capillary electrophoresis. Anal Bioanal Chem 2013; 406:635-41. [DOI: 10.1007/s00216-013-7481-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2013] [Revised: 10/29/2013] [Accepted: 11/01/2013] [Indexed: 12/19/2022]
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32
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Wang X, Xiong Y, Xie T, Sharma VK, Tu Y, Yang J, Tian S, He C. Separation and determination of degradation products of acid orange 7 by capillary electrophoresis/capacitively coupled contactless conductivity detector. Talanta 2013; 111:54-61. [DOI: 10.1016/j.talanta.2013.03.032] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2012] [Revised: 03/09/2013] [Accepted: 03/14/2013] [Indexed: 10/27/2022]
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33
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Rapid separation of fatty acids using a poly(vinyl alcohol) coated capillary in nonaqueous capillary electrophoresis with contactless conductivity detection. Electrophoresis 2013; 34:2072-7. [DOI: 10.1002/elps.201300028] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2013] [Revised: 02/08/2013] [Accepted: 02/08/2013] [Indexed: 01/02/2023]
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34
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Breadmore MC, Shallan AI, Rabanes HR, Gstoettenmayr D, Abdul Keyon AS, Gaspar A, Dawod M, Quirino JP. Recent advances in enhancing the sensitivity of electrophoresis and electrochromatography in capillaries and microchips (2010-2012). Electrophoresis 2013; 34:29-54. [PMID: 23161056 DOI: 10.1002/elps.201200396] [Citation(s) in RCA: 124] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2012] [Revised: 09/03/2012] [Accepted: 09/04/2012] [Indexed: 12/21/2022]
Abstract
CE has been alive for over two decades now, yet its sensitivity is still regarded as being inferior to that of more traditional methods of separation such as HPLC. As such, it is unsurprising that overcoming this issue still generates much scientific interest. This review continues to update this series of reviews, first published in Electrophoresis in 2007, with updates published in 2009 and 2011 and covers material published through to June 2012. It includes developments in the field of stacking, covering all methods from field amplified sample stacking and large volume sample stacking, through to isotachophoresis, dynamic pH junction and sweeping. Attention is also given to online or inline extraction methods that have been used for electrophoresis.
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Affiliation(s)
- Michael C Breadmore
- Australian Centre for Research on Separation Science, School of Chemistry, University of Tasmania, Hobart, Tasmania, Australia.
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35
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Kamankesh M, Mohammadi A, Modarres Tehrani Z, Ferdowsi R, Hosseini H. Dispersive liquid–liquid microextraction followed by high-performance liquid chromatography for determination of benzoate and sorbate in yogurt drinks and method optimization by central composite design. Talanta 2013; 109:46-51. [DOI: 10.1016/j.talanta.2013.01.052] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2012] [Revised: 01/23/2013] [Accepted: 01/25/2013] [Indexed: 11/29/2022]
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36
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Šlampová A, Malá Z, Pantůčková P, Gebauer P, Boček P. Contemporary sample stacking in analytical electrophoresis. Electrophoresis 2012; 34:3-18. [PMID: 23161176 DOI: 10.1002/elps.201200346] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2012] [Revised: 07/20/2012] [Accepted: 07/20/2012] [Indexed: 12/29/2022]
Abstract
Sample stacking is a term denoting a multifarious class of methods and their names that are used daily in CE for online concentration of diluted samples to enhance separation efficiency and sensitivity of analyses. The essence of these methods is that analytes present at low concentrations in a large injected sample zone are concentrated into a short and sharp zone (stack) in the separation capillary. Then the stacked analytes are separated and detected. Regardless of the diversity of the stacking electromigration methods, one can distinguish four main principles that form the bases of nearly all of them: (i) Kohlrausch adjustment of concentrations, (ii) pH step, (iii) micellar methods, and (iv) transient ITP. This contribution is a continuation of our previous reviews on the topic and brings an overview of papers published during 2010-2012 and relevant to the mentioned principles (except the last one which is covered by another review in this issue).
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Affiliation(s)
- Andrea Šlampová
- Institute of Analytical Chemistry of the Academy of Sciences of the Czech Republic, Brno, Czech Republic
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Kubáň P, Hauser PC. Contactless conductivity detection for analytical techniques: Developments from 2010 to 2012. Electrophoresis 2012; 34:55-69. [DOI: 10.1002/elps.201200358] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2012] [Revised: 08/08/2012] [Accepted: 08/09/2012] [Indexed: 11/08/2022]
Affiliation(s)
- Pavel Kubáň
- Institute of Analytical Chemistry of the Academy of Sciences of the Czech Republic; Brno; Czech Republic
| | - Peter C. Hauser
- Department of Chemistry; University of Basel; Basel; Switzerland
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38
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Alizadeh N, Saburi N, Hosseini SE. Rapid determination of benzoate in soft drinks by solid-state benzoate ion selective sensor based on conducting polypyrrole film. Food Control 2012. [DOI: 10.1016/j.foodcont.2012.05.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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39
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Wang Y, Ni C, Zhao M, Liu Y. Classification and Quantitative Determination of Sodium Benzoate in Muddy Flesh by Near-Infrared Reflectance Spectroscopy. J FOOD PROCESS PRES 2012. [DOI: 10.1111/j.1745-4549.2012.00804.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- Yuanhao Wang
- College of Light Industry and Chemical Engineering; Dalian Polytechnic University; Dalian China
| | - Chao Ni
- School of Mechatronics Engineering; Nanjing Forestry University; No. 159, Longpan Road Nanjing 210037 China
| | - Maocheng Zhao
- School of Mechatronics Engineering; Nanjing Forestry University; No. 159, Longpan Road Nanjing 210037 China
| | - Ying Liu
- School of Mechatronics Engineering; Nanjing Forestry University; No. 159, Longpan Road Nanjing 210037 China
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40
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Review of recent developments of on-line sample stacking techniques and their application in capillary electrophoresis. OPEN CHEM 2012. [DOI: 10.2478/s11532-012-0007-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
AbstractCapillary electrophoresis (CE) has become one of the most useful tools in separation science because of its high separation efficiency, low cost, versatility, ease of sample preparation and automation. However, some limitations of CE, such as poor concentration sensitivity due to its lower sample loading and shorter optical path length, limits its further applications in separation science. In order to solve this problem, various on-line sample preconcentration techniques such as transient isotachophoresis preconcentration, field-enhanced sample stacking, micelle to solvent stacking, micelle collapse, dynamic pH junction, sweeping, solid phase extraction, single drop microextraction and liquid phase microextraction have been combined with CE. Recent developments, applications and some variants together with different combinations of these techniques integrating in CE are reviewed here and our discussions will be confined to the past three years (2008–2011).
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41
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Elbashir AA, Aboul-Enein HY. Recent advances in applications of capillary electrophoresis with capacitively coupled contactless conductivity detection (CE-C⁴D): an update. Biomed Chromatogr 2012; 26:990-1000. [PMID: 22430262 DOI: 10.1002/bmc.2729] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2012] [Accepted: 02/12/2012] [Indexed: 11/06/2022]
Abstract
Capillary electrophoresis with a capacitively contactless conductivity detector (CE-C⁴D) is becoming a significant useful technique for the analysis of analytes in various fields such as pharmaceutical, biomedical, food and environmental. This review is an update describing the recent developments in the application of CE with a C⁴D detector.
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42
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Yan QH, Yang L, Zhang HR, Niu LY. A SENSITIVE AND VALIDATED METHOD FOR DETERMINATION OF FOUR ADDITIVES IN HAM SAUSAGE BY HPLC-DAD METHOD. J LIQ CHROMATOGR R T 2012. [DOI: 10.1080/10826076.2011.597075] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Qing Hua Yan
- a Department of Life Science and Technology , Xinxiang Medical University , Xinxiang Henan , P.R. China
| | - Li Yang
- b Department of Experimental Center , Henan Institute of Science and Technology , Xinxiang Henan , P.R. China
| | - Hui Rong Zhang
- b Department of Experimental Center , Henan Institute of Science and Technology , Xinxiang Henan , P.R. China
| | - Li Yuan Niu
- b Department of Experimental Center , Henan Institute of Science and Technology , Xinxiang Henan , P.R. China
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43
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Castro-Puyana M, García-Cañas V, Simó C, Cifuentes A. Recent advances in the application of capillary electromigration methods for food analysis and Foodomics. Electrophoresis 2011; 33:147-67. [DOI: 10.1002/elps.201100385] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2011] [Revised: 08/10/2011] [Accepted: 08/10/2011] [Indexed: 12/17/2022]
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