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Li P, Chen X, Wu G, Wang Z, Huang C. Ascorbic Acid Sensor Based on CdS QDs@PDA Fluorescence Resonance Energy Transfer. Molecules 2022; 27:molecules27072097. [PMID: 35408497 PMCID: PMC9000657 DOI: 10.3390/molecules27072097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 03/18/2022] [Accepted: 03/20/2022] [Indexed: 12/10/2022] Open
Abstract
An ascorbic acid (AA) sensor was constructed based on the fluorescence resonance energy transfer (FRET) between CdS quantum dots (CdS QDs) and polydopamine (PDA) to detect trace AA sensitively. FRET occurred due to the broad absorption spectrum of PDA completely overlapped with the narrow emission spectrum of CdS QDs. The fluorescence of CdS QDs was quenched and in the "off" state. When AA was present, the conversion of DA to PDA was hindered and the FRET disappeared, resulting in the fluorescence of CdS QDs in an "on" state. Importantly, the degree of fluorescence recovery of CdS QDs displayed a desirable linear correlation with the concentration of AA in the range of 5.0-100.0 μmol/L, the linear equation is y=0.0119cAA+0.3113, and the detection limit is 1.16 μmol/L (S/N = 3, n = 9). There was almost no interference with common amino acid, glucose and biological sulfhydryl small molecules to AA. Trace amount of AA in vitamin C tablets were determined and satisfactory results were obtained; the recoveries were observed to be 98.01-100.7%.
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Affiliation(s)
- Pu Li
- College of Chemistry and Life Science, Zhejiang Normal University, Jinhua 321004, China; (P.L.); (X.C.)
| | - Xiaoxiao Chen
- College of Chemistry and Life Science, Zhejiang Normal University, Jinhua 321004, China; (P.L.); (X.C.)
| | - Gaojun Wu
- Xingzhi College, Zhejiang Normal University, Jinhua 321004, China; (G.W.); (Z.W.)
| | - Zhe Wang
- Xingzhi College, Zhejiang Normal University, Jinhua 321004, China; (G.W.); (Z.W.)
| | - Chaobiao Huang
- College of Chemistry and Life Science, Zhejiang Normal University, Jinhua 321004, China; (P.L.); (X.C.)
- Xingzhi College, Zhejiang Normal University, Jinhua 321004, China; (G.W.); (Z.W.)
- Correspondence:
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Construction of Electrochemical and Photoelectrochemical Sensing Platform Based on Porphyrinic Metal-Organic Frameworks for Determination of Ascorbic Acid. NANOMATERIALS 2022; 12:nano12030482. [PMID: 35159826 PMCID: PMC8839235 DOI: 10.3390/nano12030482] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 01/19/2022] [Accepted: 01/28/2022] [Indexed: 02/01/2023]
Abstract
Highly sensitive and specific detection of biomolecular markers is of great importance to the diagnosis and treatment of related diseases. Herein, Cu-TCPP@MOFs thin films were synthesized with tetrakis(4-carboxyphenyl) porphyrin (H2TCPP) as organic ligands and copper ions as metal nodes. The as-synthesized Cu-TCPP@MOFs thin films as electrode modifiers were used to modify the pre-treated glassy carbon electrode (GCE) and the electrochemical performances of Cu-TCPP@MOFs/GCE were evaluated by electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV). Furthermore, as the working electrode, the constructed Cu-TCPP@MOFs/GCE was used for the investigation of ascorbic acid (AA) due to its outstanding electrocatalytic activities towards AA by several electrochemical methods, including cyclic voltammetry (CV), differential pulse voltammetry (DPV), and chronoamperometry (CA). The well-linear relationship was established based on different AA concentration ranges and the ideal detection limits (LOD) were obtained in the above-mentioned electrochemical methods, respectively. Furthermore, a Cu-TCPP MOFs@GCE sensing platform was used as a photoelectrochemical (PEC) sensor to quantitatively detect AA based on the strong absorption properties of Cu-TCPP ingredients in Cu-TCPP MOFs in a visible light band of 400~700 nm. PEC sensing platform based on Cu-TCPP@MOFs exhibited a more extensive linear concentration range, more ideal detection limit, and better sensitivity relative than the other electrochemical methods for AA. The well linear regression equations were established between the peak current intensity and AA concentrations in different electrochemical technologies, including CV, DPV, and CA, and PEC technology. AA concentration ranges applicable to various electrochemical equations were as follows: 0.45~2.10 mM of CV, 0.75~2.025 mM of DPV, 0.3~2.4 mM of CA, 7.5~480 μM of PEC, and the corresponding detection limits for AA were 1.08 μM (S/N = 3), 0.14 μM (S/N = 3), 0.049 μM (S/N = 3), and 0.084 nA/μM. Moreover, the proposed Cu-TCPP MOFs@GCE electrochemical and photoelectrochemical sensing platform was applied to determine the AA concentration of a real human serum sample; the results reveal that Cu-TCPP MOFs@GCE sensing platform could accurately determine the concentration of AA of the human serum under other potential interferences contained in the human serum samples.
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Ma F, Luo J, Li X, Liu S, Yang M, Chen X. A "switch-on" fluorescence assay based on silicon quantum dots for determination of ascorbic acid. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 249:119343. [PMID: 33359942 DOI: 10.1016/j.saa.2020.119343] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 12/09/2020] [Accepted: 12/10/2020] [Indexed: 06/12/2023]
Abstract
Water dispersible silicon quantum dots (SiQDs) showing blue fluorescence were synthesized with 3-aminopropyltriethoxysilane (APTES) as silicon source. Based on the synthesized SiQDs as the photoluminescence unit, MnO2 nanosheets (NS) as the quencher, a "switch-on" fluorescence assay for the determination of ascorbic acid (AA) was designed. The fluorescence of SiQDs can be effectively quenched by MnO2 NS because of the internal filtration effect. In the presence of AA, MnO2 is reduced to Mn2+, so that the fluorescence of SiQDs is partially recovered. The recovered fluorescence intensity was related to the concentration of AA. Under the optimal experimental conditions, the linear response range of the assay to AA is 1-80 µM, and the detection limit is 0.48 µM. The method for the determination of AA has the advantages of simple, low cost, good selectivity and sensitivity. The assay has been successfully applied to the quantification of AA in beverage (mizone) samples, which proves the practicability of the assay.
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Affiliation(s)
- Fanghui Ma
- College of Chemistry and Chemical Engineering, Hunan Provincial Key Laboratory of Efficient and Clean Utilization of Manganese Resources, Central South University, Changsha 410083, China
| | - Junjun Luo
- College of Chemistry and Chemical Engineering, Hunan Provincial Key Laboratory of Efficient and Clean Utilization of Manganese Resources, Central South University, Changsha 410083, China
| | - Xiaoqing Li
- College of Chemistry and Chemical Engineering, Hunan Provincial Key Laboratory of Efficient and Clean Utilization of Manganese Resources, Central South University, Changsha 410083, China
| | - Shuping Liu
- College of Chemistry and Chemical Engineering, Hunan Provincial Key Laboratory of Efficient and Clean Utilization of Manganese Resources, Central South University, Changsha 410083, China
| | - Minghui Yang
- College of Chemistry and Chemical Engineering, Hunan Provincial Key Laboratory of Efficient and Clean Utilization of Manganese Resources, Central South University, Changsha 410083, China.
| | - Xiang Chen
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha 410008, China.
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Řemínek R, Foret F. Capillary electrophoretic methods for quality control analyses of pharmaceuticals: A review. Electrophoresis 2020; 42:19-37. [PMID: 32901975 DOI: 10.1002/elps.202000185] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 08/08/2020] [Accepted: 08/14/2020] [Indexed: 12/25/2022]
Abstract
Capillary electrophoresis represents a promising technique in the field of pharmaceutical analysis. The presented review provides a summary of capillary electrophoretic methods suitable for routine quality control analyses of small molecule drugs published since 2015. In total, more than 80 discussed methods are sorted into three main sections according to the applied electroseparation modes (capillary zone electrophoresis, electrokinetic chromatography, and micellar, microemulsion, and liposome-electrokinetic chromatography) and further subsections according to the applied detection techniques (UV, capacitively coupled contactless conductivity detection, and mass spectrometry). Key parameters of the procedures are summarized in four concise tables. The presented applications cover analyses of active pharmaceutical ingredients and their related substances such as degradation products or enantiomeric impurities. The contribution of reported results to the current knowledge of separation science and general aspects of the practical applications of capillary electrophoretic methods are also discussed.
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Affiliation(s)
- Roman Řemínek
- Institute of Analytical Chemistry, Czech Academy of Sciences, Brno, Czech Republic
| | - František Foret
- Institute of Analytical Chemistry, Czech Academy of Sciences, Brno, Czech Republic
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Dong X, Zhang T, Wei H, Dang L. Stability of sodium ascorbyl phosphate in the water-glycerol system. J Pharm Biomed Anal 2020; 181:113103. [PMID: 31981829 DOI: 10.1016/j.jpba.2020.113103] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2019] [Revised: 12/27/2019] [Accepted: 01/07/2020] [Indexed: 11/26/2022]
Abstract
Sodium ascorbyl phosphate is a hydrophilic derivative of ascorbic acid with better stability compared to the parent compound. However, sodium ascorbyl phosphate is not as stable in solution as it is in the solid state, and it has been found to degrade, with accompanying discoloration, under the influence of different conditions. Here, the degradation mechanism of sodium ascorbyl phosphate in the water-glycerol system was revealed and the thermal degradation kinetics was shown to follow second-order kinetics. A thermal degradation prediction model was established and successfully fitted to the experimental data. In addition, the stability of sodium ascorbyl phosphate in the water-glycerol system during storage was investigated under different conditions, including changes in concentration, temperature, pH, light and oxygen, and metal ions. Sodium ascorbyl phosphate content was quantitatively measured via HPLC, and the color and pH values of the sample were qualitatively measured using a spectrophotometer and a pH meter, respectively. It was found that temperature and pH are the most important factors affecting the stability of sodium ascorbyl phosphate.
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Affiliation(s)
- Xiaohui Dong
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, PR China
| | - Ting Zhang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, PR China
| | - Hongyuan Wei
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, PR China.
| | - Leping Dang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, PR China.
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Tamiji Z, Salahinejad M, Niazi A. Optimized Vortex-Assisted Dispersive Liquid–Liquid Microextraction Coupled with Spectrofluorimetry for Determination of Aspirin in Human Urine: Response Surface Methodology. CURR PHARM ANAL 2020. [DOI: 10.2174/1573412914666181031115209] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Background:
A Vortex-assisted dispersive liquid-liquid microextraction (VA-DLLME)
method is presented for the determination of aspirin (acetylsalicylic acid) in human urine by spectrofluorimetry.
Objective:
To determine trace levels of aspirin in biologic samples by using green and low-cost method
development.
Methods:
For the microextraction procedure, chloroform and acetonitrile were used as extraction and
disperser solvent, respectively. The factors affecting the efficiency of extraction such as volume of chloroform,
volumes of acetonitrile, ionic strength, sample pH, centrifuging time, and extraction time were
investigated. Then significant variables were optimized by the response surface method using the Box-
Behnken design.
Results:
Under the optimum extraction conditions, a linear calibration curve in the range of 0.1 to 130
ng mL-1 with a correlation coefficient of R2 = 0.998 was obtained. The limits of detection (LOD) and
limits of quantification (LOQ) were 0.031 and 0.103 ng mL-1, respectively. The relative standard deviations
(RSD) were less than 4%.
Conclusion:
Enrichment factor and recoveries were achieved for the extraction of aspirin in human
urine. This method gives a rapid, simple, sensitive and environmentally friendly for the measurement of
trace amount aspirin.
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Affiliation(s)
- Zahra Tamiji
- Department of Chemistry, Faculty of Science, Arak Branch, Islamic Azad University, Arak, Iran
| | | | - Ali Niazi
- Department of Chemistry, Faculty of Science, Arak Branch, Islamic Azad University, Arak, Iran
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Redox modulated fluorometric sensing of ascorbic acid by using a hybrid material composed of carbon dots and CoOOH nanosheets. Mikrochim Acta 2019; 186:368. [DOI: 10.1007/s00604-019-3483-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 05/05/2019] [Indexed: 12/19/2022]
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Tavallali H, Deilamy-Rad G, Mosallanejad N. A reversible and dual responsive sensing approach for determination of ascorbate ion in fruit juice, biological, and pharmaceutical samples by use of available triaryl methane dye and its application to constructing a molecular logic gate and a set/reset memorized device. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 215:276-289. [PMID: 30836306 DOI: 10.1016/j.saa.2019.02.094] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 02/15/2019] [Accepted: 02/20/2019] [Indexed: 06/09/2023]
Abstract
Since dyes are available in huge quantities and have the well-established chemistry involved in their synthesis, their use in chemosensing could be continued. In the current study, a new and reversible colorimetric and fluorometric chemosensor based on available triaryl methane dye (brilliant green (BG)) - phosphotungstic acid (PTA) complex has been designed for determination of ascorbate (AscH-1) ion in water/DMSO (90:10v/v, 1.0mmolL-1 HEPES, pH7.0). The "ON-OFF" fluorescence and colorimetric responses of this ion association complex to AscH-1 were based on a displacement mechanism. For the detection of AscH-1, the linear ranges achieved for UV-Vis absorbance and fluorescence experiments were 3.9-62.6μmolL-1 and 1.9-85.4μmolL-1, respectively. The limits of detection for both of them were also calculated to be 0.4 and 0.2μmolL-1. The proposed method was also successfully utilized for rapid recognition of ascorbate in juice samples, human serum, and the formulation of supplement products. Moreover, the proposed chemosensor capability of functioning as INHIBITION-type sensor with PTA and AscH-1 as chemical inputs was indicated by the investigation of the molecular logic behavior of this chemosensor. Eventually, a sequential memory unit displaying "Write-Read-Erase-Read" function could be integrated based on the reversible and reproducible system.
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Affiliation(s)
- Hossein Tavallali
- Chemistry Department, The University of Payame Noor, 19395-4697 Tehran, Islamic Republic of Iran.
| | - Gohar Deilamy-Rad
- Chemistry Department, The University of Payame Noor, 19395-4697 Tehran, Islamic Republic of Iran
| | - Narges Mosallanejad
- Chemistry Department, The University of Payame Noor, 19395-4697 Tehran, Islamic Republic of Iran
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Xing K, Ge J, Wang WX, Geng X, Shen XP, Tang JL, Qu LB, Sun YQ, Li ZH. A turn-on fluorescent probe for sensitive detection of ascorbic acid based on SiNP–MnO2nanocomposites. NEW J CHEM 2019. [DOI: 10.1039/c9nj02106j] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A nanoprobe prepared by coupling nanoparticles (SiNPs) with BSA templated-MnO2nanosheets was constructed for ascorbic acid analysis.
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Affiliation(s)
- Ke Xing
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou 450001
- P. R. China
| | - Jia Ge
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou 450001
- P. R. China
| | - Wei-Xia Wang
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou 450001
- P. R. China
| | - Xin Geng
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou 450001
- P. R. China
| | - Xue-Ping Shen
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou 450001
- P. R. China
| | - Jin-Lu Tang
- School of Basic Medical Sciences
- Zhengzhou University
- Zhengzhou 450001
- P. R. China
| | - Ling-Bo Qu
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou 450001
- P. R. China
| | - Yuan-Qiang Sun
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou 450001
- P. R. China
| | - Zhao-Hui Li
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou 450001
- P. R. China
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Kang Y, Shao Z, Wang Q, Hu X, Yu D. Quantitation of polymorphic impurity in entecavir polymorphic mixtures using powder X-ray diffractometry and Raman spectroscopy. J Pharm Biomed Anal 2018; 158:28-37. [DOI: 10.1016/j.jpba.2018.05.026] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2018] [Revised: 05/15/2018] [Accepted: 05/16/2018] [Indexed: 10/16/2022]
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Zhu Q, Scriba GK. Analysis of small molecule drugs, excipients and counter ions in pharmaceuticals by capillary electromigration methods – recent developments. J Pharm Biomed Anal 2018; 147:425-438. [DOI: 10.1016/j.jpba.2017.06.063] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Revised: 06/26/2017] [Accepted: 06/27/2017] [Indexed: 12/12/2022]
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Ratiometric ultrasensitive fluorometric detection of ascorbic acid using a dually emitting CdSe@SiO2@CdTe quantum dot hybrid. Mikrochim Acta 2017; 185:42. [DOI: 10.1007/s00604-017-2557-9] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Accepted: 11/09/2017] [Indexed: 12/27/2022]
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