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Wang Q, Zhu B, Han Y, Yang X, Xu Y, Cheng Y, Liu T, Wu J, Li S, Ding L, Bai J, Niu Y. Metal ions mediated carbon dots nanoprobe for fluorescent turn-on sensing of N-acetyl-L-cysteine. LUMINESCENCE 2022; 37:1267-1274. [PMID: 35608368 DOI: 10.1002/bio.4292] [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: 11/27/2021] [Revised: 05/19/2022] [Accepted: 05/20/2022] [Indexed: 11/06/2022]
Abstract
Carbon dots (CDs) was facilely synthesized from aspartic acid through a pyrolysis method in this work. Based on their favorable fluorescence property, CDs was utilized to design a metal ions-mediated fluorescent probe for N-acetyl-L-cysteine (NAC) detection. The fluorescence intensity of CDs was firstly quenched by manganese ion (Mn2+ ) through static quenching effect and subsequently restored by NAC via the combination with Mn2+ owing to the coordination effect. Therefore, the fluorescent turn-on sensing of NAC was actuated based on the fluorescence quenching stimulated by Mn2+ and recovery induced by coordination. The fluorescence recovery efficiencies showed a proportional range to the concentration of NAC in the range of 0.04-5 mmol L-1 and the detection limit was 0.03 mmol L-1 . Further, this metal ions-mediated fluorescent nanoprobe was applied to human urine sample detection and the standard recovery rates were located in the range of 97.62-102.34 %. It was the first time that Mn2+ was used to construct fluorescent nanoprobe for NAC. Compared to other heavy metal ions, Mn2+ with good biosecurity prevented the risk of application, which made the nanoprobe green and bio-practical. The facile synthesis of CDs and novel metal ions-mediated sensing mode made it a promising method for pharmaceutical analysis.
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Affiliation(s)
- Qi Wang
- Chemistry & Chemical Engineering Department, Taiyuan Institute of Technology, Taiyuan, China
| | - Bin Zhu
- Chemistry & Chemical Engineering Department, Taiyuan Institute of Technology, Taiyuan, China
| | - Yejiao Han
- Chemistry & Chemical Engineering Department, Taiyuan Institute of Technology, Taiyuan, China
| | - Xin Yang
- Chemistry & Chemical Engineering Department, Taiyuan Institute of Technology, Taiyuan, China
| | - Yanan Xu
- Chemistry & Chemical Engineering Department, Taiyuan Institute of Technology, Taiyuan, China
| | - Ying Cheng
- Chemistry & Chemical Engineering Department, Taiyuan Institute of Technology, Taiyuan, China
| | - Taotao Liu
- Chemistry & Chemical Engineering Department, Taiyuan Institute of Technology, Taiyuan, China
| | - Jiana Wu
- Department of Environment and Safety Engineering, Taiyuan Institute of Technology, Taiyuan, China
| | - Shengling Li
- Chemistry & Chemical Engineering Department, Taiyuan Institute of Technology, Taiyuan, China
| | - Lifeng Ding
- Chemistry & Chemical Engineering Department, Taiyuan Institute of Technology, Taiyuan, China
| | - Jingjing Bai
- Department of Materials Engineering, Taiyuan Institute of Technology, Taiyuan, China
| | - Yulan Niu
- Chemistry & Chemical Engineering Department, Taiyuan Institute of Technology, Taiyuan, China
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Li Y, Hu Y, Jia Y, Jiang X, Cheng Z. N, S Co-Doped Carbon Quantum Dots for the Selective and Sensitive Fluorescent Determination of N-Acetyl-l-Cysteine in Pharmaceutical Products and Urine. ANAL LETT 2019. [DOI: 10.1080/00032719.2019.1566349] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Yingping Li
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong, China
- Institute of Applied Chemistry, China West Normal University, Nanchong, China
| | - Yue Hu
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong, China
- Institute of Applied Chemistry, China West Normal University, Nanchong, China
| | - Yong Jia
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong, China
- Institute of Applied Chemistry, China West Normal University, Nanchong, China
| | - Xiaohui Jiang
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong, China
| | - Zhengjun Cheng
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong, China
- Institute of Applied Chemistry, China West Normal University, Nanchong, China
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3
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Tehrani L, Sheibani A, Nazari A. Optimization of N-acetylcysteine Determination by Ion Mobility Spectrometry using Central Composite Design. JOURNAL OF ANALYTICAL CHEMISTRY 2018. [DOI: 10.1134/s1061934818100118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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4
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Farahani KZ, Benvidi A, Rezaeinasab M, Abbasi S, Abdollahi-Alibeik M, Rezaeipoor-Anari A, Zarchi MAK, Abadi SSADM. Potentiality of PARAFAC approaches for simultaneous determination of N-acetylcysteine and acetaminophen based on the second-order data obtained from differential pulse voltammetry. Talanta 2018; 192:439-447. [PMID: 30348415 DOI: 10.1016/j.talanta.2018.08.092] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Revised: 08/27/2018] [Accepted: 08/31/2018] [Indexed: 02/06/2023]
Abstract
N-acetylcysteine (N-AC) has widespread application such as pharmaceutical drug and nutritional supplement. Its adverse effects are rash, urticaria, and itchiness and large doses of N-AC could potentially cause damage to the heart and lungs. Therefore, in this work, a sensitive voltammetric sensor based on a carbon paste electrode modified with silica nano particles (i.e. Mobil Composition of Matter (No. 41) modified with Boron Trifluoride or BF3@MCM-41) with a combination of 4,4'-dihydroxybiphenyl (DHB) (BF3@MCM-41/DHB/CPE) was designed for determination of N-AC. The electrochemical oxidation of N-AC was examined using various techniques such as cyclic voltammetry (CV), chronoamperometry and differential pulse voltammetry (DPV). Under the optimum conditions, some parameters such as electron transfer coefficient (α) and heterogeneous rate constant (ks) were estimated for N-AC. Due to the use of N-AC for the treatment of acetaminophen (AC) overdose, the application of modified electrode was investigated for the simultaneous determination of N-AC and AC in blood serum and tablet samples. Since, the signals of these species overlap and due to the presence of interfering species in blood samples, the simultaneous determination of mentioned species is difficult or impossible. To overcome this challenge, parallel factor analysis (PARAFAC) was used for the analysis of the complex matrices to obtain the spectral profile of each component and interference. To achieve this goal, electrochemical second-order data were generated using a simple change in pulse height of differential pulse voltammetry. The results of the presently proposed strategy for the real samples analysis are similar to those obtained with HPLC. Thus, the proposed method has acceptable performance for simultaneous determination of the two species in real samples.
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Affiliation(s)
| | - Ali Benvidi
- Department of Chemistry, Faculty of Science, Yazd University, Yazd 89195-741, Iran.
| | - Masoud Rezaeinasab
- Department of Chemistry, Faculty of Science, Yazd University, Yazd 89195-741, Iran
| | - Saleheh Abbasi
- Department of Chemistry, Faculty of Science, Yazd University, Yazd 89195-741, Iran
| | | | - Ali Rezaeipoor-Anari
- Department of Chemistry, Faculty of Science, Yazd University, Yazd 89195-741, Iran
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5
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Fast and reliable BIA/amperometric quantification of acetylcysteine using a nanostructured double hydroxide sensor. Talanta 2018; 186:354-361. [DOI: 10.1016/j.talanta.2018.04.053] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Revised: 04/10/2018] [Accepted: 04/18/2018] [Indexed: 12/25/2022]
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6
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Siddiqui MR, Wabaidur SM, Ola MS, AlOthman ZA, Rafiquee MZA, Khan MA. High-Throughput UPLC-MS Method for the Determination of N-Acetyl-l-Cysteine: Application in Tissue Distribution Study in Wistar Rats. J Chromatogr Sci 2016; 54:1244-52. [PMID: 27102930 DOI: 10.1093/chromsci/bmw060] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Indexed: 02/06/2023]
Abstract
N-Acetylcysteine (NAC) is the N-acetyl derivative of the amino acid l-cysteine and is extensively used as a medicine to treat a variety of diseases. High-throughput ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS) method has been developed for the quantitative assessment of N-acetyl-l-cysteine. The method was further applied to study the distribution of the intraperitoneal injected drug into different tissues and plasma of Wistar rats, including liver, kidney, heart, lungs and spleen. The drug was having highest concentration in plasma and liver followed by kidney, lungs, heart and spleen. Method validation studies suggested being linear in the range of 1-15 µg mL(-1) for liver, kidney, heart, lungs and spleen and 1-120 µg mL(-1) for the plasma. The limit of detection and limit of quantitation were found to be 0.20 and 0.66 µg mL(-1), respectively. The recovery studies suggested that in all the cases, the obtained recovery was in the range of 98.51-101.88%. Our analyses provide a validated UPLC-MS method for the determination of NAC and its successful application for the analysis in plasma and tissues obtained from Wistar rats.
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Affiliation(s)
- Masoom Raza Siddiqui
- Advanced Materials Research Chair, Chemistry Department, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Saikh Mohammad Wabaidur
- Advanced Materials Research Chair, Chemistry Department, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Mohammad Shamsul Ola
- Department of Biochemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Zeid A AlOthman
- Advanced Materials Research Chair, Chemistry Department, College of Science, King Saud University, Riyadh, Saudi Arabia
| | | | - Moonis Ali Khan
- Advanced Materials Research Chair, Chemistry Department, College of Science, King Saud University, Riyadh, Saudi Arabia
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Abt B, Hartmann A, Pasquarelli A, Strehle S, Mizaikoff B, Kranz C. Electrochemical Determination of Sulphur-containing Pharmaceuticals Using Boron-doped Diamond Electrodes. ELECTROANAL 2016. [DOI: 10.1002/elan.201501150] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Bärbel Abt
- Institute of Analytical and Bioanalytical Chemistry; Ulm University; Albert-Einstein-Allee 11 89081 Ulm Germany
| | - Andreas Hartmann
- Institute of Analytical and Bioanalytical Chemistry; Ulm University; Albert-Einstein-Allee 11 89081 Ulm Germany
| | - Alberto Pasquarelli
- Institute of Electron Devices and Circuits; Ulm University; Albert-Einstein-Allee 45 89081 Ulm Germany
| | - Steffen Strehle
- Institute of Electron Devices and Circuits; Ulm University; Albert-Einstein-Allee 45 89081 Ulm Germany
| | - Boris Mizaikoff
- Institute of Analytical and Bioanalytical Chemistry; Ulm University; Albert-Einstein-Allee 11 89081 Ulm Germany
| | - Christine Kranz
- Institute of Analytical and Bioanalytical Chemistry; Ulm University; Albert-Einstein-Allee 11 89081 Ulm Germany
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8
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Rudašová M, Masár M. Precise determination ofN-acetylcysteine in pharmaceuticals by microchip electrophoresis. J Sep Sci 2015; 39:433-9. [DOI: 10.1002/jssc.201501025] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Revised: 10/13/2015] [Accepted: 10/15/2015] [Indexed: 11/10/2022]
Affiliation(s)
- Marína Rudašová
- Department of Analytical Chemistry, Faculty of Natural Sciences; Comenius University in Bratislava; Bratislava Slovakia
| | - Marián Masár
- Department of Analytical Chemistry, Faculty of Natural Sciences; Comenius University in Bratislava; Bratislava Slovakia
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9
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Kukoc-Modun L, Tsikas D, Biocic M, Radić N. Flow Injection Analysis ofN-acetyl-L-cysteine Based on the Reduction of Copper(II)-neocuproine Reagent. ANAL LETT 2015. [DOI: 10.1080/00032719.2014.996811] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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10
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Donkuru M, Chitanda JM, Verrall RE, El-Aneed A. Multi-stage tandem mass spectrometric analysis of novel β-cyclodextrin-substituted and novel bis-pyridinium gemini surfactants designed as nanomedical drug delivery agents. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2014; 28:757-772. [PMID: 24573807 DOI: 10.1002/rcm.6827] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2013] [Revised: 01/02/2014] [Accepted: 01/05/2014] [Indexed: 06/03/2023]
Abstract
RATIONALE This study aimed at evaluating the collision-induced dissociation tandem mass spectrometric (CID-MS/MS) fragmentation patterns of novel β-cyclodextrin-substituted- and bis-pyridinium gemini surfactants currently being explored as nanomaterial drug delivery agents. In the β-cyclodextrin-substituted gemini surfactants, a β-cyclodextrin ring is grafted onto an N,N-bis(dimethylalkyl)-α,ω-aminoalkane-diammonium moiety using variable succinyl linkers. In contrast, the bis-pyridinium gemini surfactants are based on a 1,1'-(1,1'-(ethane-1,2-diylbis(sulfanediyl))bis(alkane-2,1-diyl))dipyridinium template, defined by two symmetrical N-alkylpyridinium parts connected through a fixed ethane dithiol spacer. METHODS Detection of the precursor ion [M](2+) species of the synthesized compounds and the determination of mass accuracies were conducted using a QqTOF-MS instrument. A multi-stage tandem MS analysis of the detected [M](2+) species was conducted using the QqQ-LIT-MS instrument. Both instruments were equipped with an electrospray ionization (ESI) source. RESULTS Abundant precursor ion [M](2+) species were detected for all compounds at sub-1 ppm mass accuracies. The β-cyclodextrin-substituted compounds, fragmented via two main pathways: Pathway 1: the loss of one head-tail region produces a [M-(N(Me)2-R)](2+) ion, from which sugar moieties (Glc) are sequentially cleaved; Pathway 2: both head-tail regions are lost to give [M-2(N(Me)2-R)](+), followed by consecutive loss of Glc units. Alternatively, the cleavage of the Glc units could also have occurred simultaneously. Nevertheless, the fragmentation evolved around the quaternary ammonium cations, with characteristic cleavage of Glc moieties. For the bis-pyridinium gemini compounds, they either lost neutral pyridine(s) to give doubly charged ions (Pathway A) or formed complementary pyridinium alongside other singly charged ions (Pathway B). Similar to β-cyclodextrin-substituted compounds, the fragmentation was centered on the pyridinium functional groups. CONCLUSIONS The MS(n) analyses of these novel gemini surfactants, reported here for the first time, revealed diagnostic ions for each compound, with a universal fragmentation pattern for each compound series. The diagnostic ions will be employed within liquid chromatography (LC)/MS/MS methods for screening, identification, and quantification of these compounds within biological samples.
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Affiliation(s)
- McDonald Donkuru
- Drug Design & Discovery Group, College of Pharmacy and Nutrition, University of Saskatchewan, 110 Science Place, Saskatoon, SK S7N 5C9, Canada
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11
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Shaidarova LG, Gedmina AV, Zhaldak ER, Chelnokova IA, Budnikov GK. Voltammetric Determination of Acetylcysteine in Drugs Using an Electrode Modified by an Osmium Hexacyanocobaltate Film. Pharm Chem J 2014. [DOI: 10.1007/s11094-014-1029-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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12
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Nantaphol S, Chailapakul O, Siangproh W. Ultrasensitive and Simple Method for Determination ofN-Acetyl-L-Cysteine in Drug Formulations Using a Diamond Sensor. ELECTROANAL 2014. [DOI: 10.1002/elan.201400065] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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13
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Zhao G, Sanchez S, Schmidt OG, Pumera M. Poisoning of bubble propelled catalytic micromotors: the chemical environment matters. NANOSCALE 2013; 5:2909-14. [PMID: 23450281 PMCID: PMC3776565 DOI: 10.1039/c3nr34213a] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2012] [Accepted: 02/04/2013] [Indexed: 05/29/2023]
Abstract
Self-propelled catalytic microjets have attracted considerable attention in recent years and these devices have exhibited the ability to move in complex media. The mechanism of propulsion is via the Pt catalysed decomposition of H2O2 and it is understood that the Pt surface is highly susceptible to poisoning by sulphur-containing molecules. Here, we show that important extracellular thiols as well as basic organic molecules can significantly hamper the motion of catalytic microjet engines. This is due to two different mechanisms: (i) molecules such as dimethyl sulfoxide can quench the hydroxyl radicals produced at Pt surfaces and reduce the amount of oxygen gas generated and (ii) molecules containing -SH, -SSR, and -SCH3 moieties can poison the catalytically active platinum surface, inhibiting the motion of the jet engines. It is essential that the presence of such molecules in the environment be taken into consideration for future design and operation of catalytic microjet engines. We show this effect on catalytic micromotors prepared by both rolled-up and electrodeposition approaches, demonstrating that such poisoning is universal for Pt catalyzed micromotors. We believe that our findings will contribute significantly to this field to develop alternative systems or catalysts for self-propulsion when practical applications in the real environment are considered.
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Affiliation(s)
- Guanjia Zhao
- Division of Chemistry & Biological Chemistry , School of Physical and Mathematical Sciences , Nanyang Technological University , Singapore 637371 , Singapore . ; Fax: +65 6791-1961
| | - Samuel Sanchez
- Institute for Integrative Nanosciences , IFW Dresden , Helmholtzstrasse 20 , D-01069 Dresden , Germany
| | - Oliver G. Schmidt
- Institute for Integrative Nanosciences , IFW Dresden , Helmholtzstrasse 20 , D-01069 Dresden , Germany
| | - Martin Pumera
- Division of Chemistry & Biological Chemistry , School of Physical and Mathematical Sciences , Nanyang Technological University , Singapore 637371 , Singapore . ; Fax: +65 6791-1961
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Electrochemical sensor for selective determination of N-acetylcysteine in the presence of folic acid using a modified carbon nanotube paste electrode. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 33:1078-84. [DOI: 10.1016/j.msec.2012.11.036] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2012] [Revised: 09/23/2012] [Accepted: 11/28/2012] [Indexed: 11/17/2022]
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15
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Chng ELK, Pumera M. Nanographite Impurities in Carbon Nanotubes: Their Influence on the Oxidation of Insulin, Nitric Oxide, and Extracellular Thiols. Chemistry 2011; 18:1401-7. [DOI: 10.1002/chem.201102080] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2011] [Revised: 09/01/2011] [Indexed: 11/08/2022]
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Giljanović J, Brkljača M, Prkić A. Flow injection spectrophotometric determination of N-acetyl-L-cysteine as a complex with palladium(II). Molecules 2011; 16:7224-36. [PMID: 21869750 PMCID: PMC6264250 DOI: 10.3390/molecules16097224] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2011] [Revised: 08/16/2011] [Accepted: 08/17/2011] [Indexed: 11/18/2022] Open
Abstract
We describe a new method using flow-injection analysis with spectro-photometric detection, suitable for the determination of N-acetyl-l-cysteine (NAC). The proposed method is appropriate for the determination of NAC in reaction with Pd2+ ions in the concentration range from 1.0 × 10−5 mol L−1 to 6.0 × 10−5 mol L−1. The detection limit NAC was 5.84 × 10−6 mol L−1 and the recorded relative standard deviation of the method is in the range from 1.67 to 4.11%. NAC and Pd2+ form complexes of Pd2+:NAC molar ratios of 1:1 and 1:2, depending on the ratio of their analytical concentrations. The cumulative conditional stability constant for the Pd(NAC)22+ complex is β12’ = 2.69 × 109 L2 mol−2. The proposed method was compared with the classic spectrophotometric determination of NAC, using the same reagent, PdCl2, and had shown certain advantages: a) shorter analysis time; b) the use of smaller volumes of sample and reagents, which make the proposed method cheaper and faster for NAC determination in real samples without sample pretreatment.
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Affiliation(s)
- Josipa Giljanović
- Department of Analytical Chemistry, Faculty of Chemistry and Technology, Teslina 10/V, 21000 Split, Croatia
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +385-21-329-476; Fax: +385-21-329-461
| | - Mia Brkljača
- Department of Mediterranean Agriculture and Aquaculture, University of Zadar, Mihovila Pavlinovića bb, 23000 Zadar, Croatia; E-Mail:
| | - Ante Prkić
- Department of Analytical Chemistry, Faculty of Chemistry and Technology, Teslina 10/V, 21000 Split, Croatia
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Lu C, Liu G, Jia J, Gui Y, Liu Y, Zhang M, Liu Y, Li S, Yu C. Liquid chromatography tandem mass spectrometry method for determination of N-acetylcysteine in human plasma using an isotope-labeled internal standard. Biomed Chromatogr 2011; 25:427-31. [PMID: 21374646 DOI: 10.1002/bmc.1465] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A liquid chromatography-tandem mass spectrometry (LC-MS/MS) method was developed to determine total N-acetylcysteine in human plasma. Mass spectrometric detection was achieved in positive electrospray ionization and multiple reaction monitoring mode. The mass transition pairs of N-acetylcysteine and the isotope-labeled internal standard d3-N-acetylcysteine were 164 → 122 and 167 → 123, respectively. The method was linear over the range of 10-5000 ng/mL in human plasma. The adoption of trichloroacetic acid significantly enhanced the extraction recovery. The blank matrix was screened to minimize the influence of endogenous N-acetylcysteine. After being fully validated, the method was successfully applied to the pharmacokinetic and bioequivalent study of N-acetylcysteine after oral administration of 600 mg tablets to 24 healthy Chinese volunteers.
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Affiliation(s)
- Chuan Lu
- Central Laboratory, Shanghai Xuhui Central Hospital, 966 Middle Huaihai Road, Shanghai, China
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18
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Spectrophotometric determination of N-acetyl-L-cysteine and N-(2-mercaptopropionyl)-glycine in pharmaceutical preparations. Int J Anal Chem 2011; 2011:140756. [PMID: 21647283 PMCID: PMC3103845 DOI: 10.1155/2011/140756] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2011] [Revised: 03/02/2011] [Accepted: 03/12/2011] [Indexed: 11/17/2022] Open
Abstract
A simple spectrophotometric method for the determination of
N-acetyl-L-cysteine (NAC) and
N-(2-mercaptopropionyl)glycine (MPG) in pharmaceutical preparations was developed, validated, and used. The proposed equilibrium method is based on a coupled two-step redox and complexation reaction. In the first step, Fe(III) is reduced to Fe(II) by NAC or MPG. Subsequently, Fe(II) is complexed with 2,4,6-tripyridyl-s-triazine (TPTZ). Several analytical parameters of the method were optimized for NAC and MPG analysis in the concentration range from 1.0 μM to 100.0 μM. Regression analysis of the calibration data showed a good correlation coefficient (0.9999). The detection limit of the method was 0.14 μM for NAC and 0.13 μM for MPG. The method was successfully applied to quantify NAC and MPG in pharmaceutical preparations. No interferences were observed from common pharmaceutical excipients.
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Silva ISD, Araújo MFA, Ferreira HA, Varela JDJG, Tanaka SMCN, Tanaka AA, Angnes L. Quantification of N-acetylcysteine in pharmaceuticals using cobalt phthalocyanine modified graphite electrodes. Talanta 2011; 83:1701-6. [DOI: 10.1016/j.talanta.2010.11.070] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2010] [Revised: 11/24/2010] [Accepted: 11/26/2010] [Indexed: 11/28/2022]
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20
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Sezginturk MK, Dinckaya E. ELECTROCHEMICAL CYSTEINE DETERMINATION IN SERUM SAMPLES BY Hg THIN FILM SENSOR. Prep Biochem Biotechnol 2010; 41:30-9. [DOI: 10.1080/10826060903558505] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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21
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Kukoc-Modun L, Radić N. Kinetic spectrophotometric determination of N-acetyl-L-cysteine based on a coupled redox-complexation reaction. ANAL SCI 2010; 26:491-5. [PMID: 20410574 DOI: 10.2116/analsci.26.491] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A novel simple kinetic spectrophotometric method for the determination of N-acetyl-L-cysteine (NAC) has been developed and validated. The proposed method is based on a coupled redox-complexation reaction, the first step of which is the reduction of Fe(3+) by NAC; the second one includes the complexation of Fe(2+), resulting from the preceding redox reaction, with 2,4,6-trypyridyl-s-triazine (TPTZ). The stable Fe(TPTZ)(2)(2+) complex exhibits an absorption maximum at lambda = 593 nm.The initial rate and fixed-time (at 5 min) methods were utilized for constructing calibration graphs. The graphs were linear in concentration ranges from 4.0 x 10(-6) to 1.0 x 10(-4) mol L(-1) for the initial rate method and 1.0 x 10(-6) to 1.0 x 10(-4) mol L(-1) for the fixed-time method, with detection limits of 1.0 x 10(-6) and 1.7 x 10(-7) mol L(-1), respectively. The proposed methods were successfully applied for the determination of NAC in its commercial pharmaceutical formulations.
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Affiliation(s)
- Lea Kukoc-Modun
- Department of Analytical Chemistry, Faculty of Chemistry and Technology, University of Split, Teslina 10/V, 21000 Split, Croatia.
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Tzanavaras PD, Zacharis CK, Themelis DG. On-Line Derivatization ofN-acetylcysteine Using Ethyl-Propiolate as a Novel Advantageous Reagent and Sequential Injection Analysis. ANAL LETT 2010. [DOI: 10.1080/00032710903502207] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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23
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Agnihotri N, Mishra PC. Mechanism of scavenging action of N-acetylcysteine for the OH radical: a quantum computational study. J Phys Chem B 2009; 113:12096-104. [PMID: 19768848 DOI: 10.1021/jp903604s] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
N-Acetylcysteine, a precursor of glutathione, is an effective antioxidant present in biological systems. The mechanism of scavenging action of N-acetylcysteine for the OH radical was studied theoretically. For this purpose, reactions of the OH radical at the different sites of N-acetylcysteine were investigated. All the relevant extrema on the potential energy surfaces were located by optimizing the geometries of the reactant and product complexes as well as those of the transition states at the BHandHLYP/AUG-cc-pVDZ level of density functional theory in the gas phase. The solvent effect of aqueous media was treated by performing single point energy calculations at the BHandHLYP/AUG-cc-pVDZ and MP2/AUG-cc-pVDZ levels of theory employing the polarizable continuum model. Correction for basis set superposition error (BSSE) was made by the counterpoise method. Rate constants for all the reaction mechanisms were calculated including the tunneling contributions. Our calculations show that the hydrogen atom of the SH group of N-acetylcysteine would be most efficiently abstracted by the OH group, which is in agreement with experimental observations.
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Affiliation(s)
- Neha Agnihotri
- Department of Physics, Banaras Hindu UniVersity, Varanasi - 221 005, India
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Toito Suarez W, Marcolino LH, Fatibello-Filho O. Voltammetric determination of N-acetylcysteine using a carbon paste electrode modified with copper(II) hexacyanoferrate(III). Microchem J 2006. [DOI: 10.1016/j.microc.2006.01.007] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Suarez WT, Vieira HJ, Fatibello-Filho O. Generation and destruction of unstable reagent in flow injection system: determination of acetylcysteine in pharmaceutical formulations using bromine as reagent. J Pharm Biomed Anal 2005; 37:771-5. [PMID: 15797800 DOI: 10.1016/j.jpba.2004.11.032] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2004] [Indexed: 11/28/2022]
Abstract
A flow injection spectrophotometric procedure was developed for determination of acetylcysteine in sachets and liquid formulations. The determination of this drug was carried out by reacting it with bromine chemically generated in flow injection system monitored continuously at 400 nm. Acetylcysteine reacts with bromine causing a decrease in the absorbance that is proportional to the analyte concentration. The bromine in excess was destroyed on-line by an ascorbic acid solution before the discard. The calibration curve for acetylcysteine determination was linear in the concentration range from 1.6 x 10(-4) to 1.6 x 10(-3) mol/l with a detection limit of 8.0 x 10(-5) mol/l. The relative standard deviation (R.S.D.) was lesser than 1.2% for a solution containing 5.3 x 10(-4) mol/l acetylcysteine (n=10), and 60 determinations per hour were obtained.
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Affiliation(s)
- Willian Toito Suarez
- Centro de Ciências Exatas e de Tecnologia, Departamento de Química, Universidade Federal de São Carlos, P.O. Box 676, CEP 13.560-970 São Carlos, São Paulo, Brazil
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Determination of organic impurities in pharmaceutical preparations. JOURNAL OF ANALYTICAL CHEMISTRY 2005. [DOI: 10.1007/s10809-005-0003-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Glazkov IN, Bochkareva NL, Revel’skii IA. Determination of organic impurities in pharmaceutical preparations. JOURNAL OF ANALYTICAL CHEMISTRY 2005. [DOI: 10.1007/s10809-005-0032-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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28
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Determination of organic impurities in pharmaceutical preparations. JOURNAL OF ANALYTICAL CHEMISTRY 2005. [DOI: 10.1007/pl00021913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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29
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Yeh CF, Jiang SJ, Hsi TS. Determination of sulfur-containing amino acids by capillary electrophoresis dynamic reaction cell inductively coupled plasma mass spectrometry. Anal Chim Acta 2004. [DOI: 10.1016/j.aca.2003.09.051] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Rudaz S, Souverain S, Schelling C, Deleers M, Klomp A, Norris A, Vu T, Ariano B, Veuthey JL. Development and validation of a heart-cutting liquid chromatography–mass spectrometry method for the determination of process-related substances in cetirizine tablets. Anal Chim Acta 2003. [DOI: 10.1016/s0003-2670(03)00339-8] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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31
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Zhang S. Determination of thiols in urinary sample by capillary-column liquid chromatography with amperometric detection at a carbon electrode. Talanta 2002; 58:451-8. [DOI: 10.1016/s0039-9140(02)00311-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2001] [Revised: 04/22/2002] [Accepted: 04/25/2002] [Indexed: 11/15/2022]
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Hess S, Teubert U, Ortwein J, Eger K. Profiling indomethacin impurities using high-performance liquid chromatography and nuclear magnetic resonance. Eur J Pharm Sci 2001; 14:301-11. [PMID: 11684404 DOI: 10.1016/s0928-0987(01)00198-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The anti-inflammatory drug indomethacin was investigated regarding new related impurities. Therefore, related substances 2-9 were prepared by independent synthesis and physicochemically characterized. To determine indomethacin and its related substances, a new HPLC-UV method was developed and validated. Indomethacin and its impurities were eluted on a C(18) column with a mobile phase consisting of methanol and an aqueous solution of 0.2% phosphoric acid at a flow rate of 1.5 ml/min and were quantified by UV detection at 320 nm. Overall, the HPLC-UV method was simple and reliable for the detection of eight impurities in indomethacin. In addition to the HPLC-UV method, 1H nuclear magnetic resonance (NMR) was used to investigate indomethacin regarding impurities. For that purpose, related substances 2-9 were systematically added to indomethacin and investigated. The NMR method was found to be very useful for the identification of impurities in bulk substance without prior separation. Both HPLC-UV and NMR were used to analyze 38 batches of indomethacin available on the European market. The outcome was that 42% of the batches did not meet the compendial requirements although they met the specifications of current compendial methods. Some batches contained the previously undescribed impurity 8, while other batches contained by-products from two distinct synthetic routes. The methods presented herein are important contributions to the ongoing efforts to reduce impurities and therefore the risk of adverse side-effects in drugs that are no longer under patent protection.
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Affiliation(s)
- S Hess
- Institute of Pharmacy, University of Leipzig, Liebigstrasse 18, D-04103 Leipzig, Germany.
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Current literature in mass spectrometry. JOURNAL OF MASS SPECTROMETRY : JMS 2001; 36:225-235. [PMID: 11345053 DOI: 10.1002/jms.89] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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