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Kukoc-Modun L, Kraljević T, Tsikas D, Radić N, Modun D. Determination of N-Acetyl-l-cysteine Ethyl Ester (NACET) by Flow Injection Analysis and Spectrophotometric Detection Using Different Thiol-Sensitive Ligands. Molecules 2021; 26:molecules26226826. [PMID: 34833918 PMCID: PMC8624116 DOI: 10.3390/molecules26226826] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Revised: 11/05/2021] [Accepted: 11/09/2021] [Indexed: 11/22/2022] Open
Abstract
A new flow injection spectrophotometric method for the determination of N-acetyl-l-cysteine ethyl ester (NACET) was developed and validated. The method is based on the reduction of Cu(II)-ligand complexes to chromophoric Cu(I)-ligand complexes with the analyte. The studied ligands were neocuproine (NCN), bicinchoninic acid (BCA) and bathocuproine disulfonic acid (BCS). The absorbance of the Cu(I)-ligand complex was measured at 458, 562 and 483 nm for the reactions of NACET with NCN, BCA and BCS, respectively. The method was validated in terms of linear dynamic range, limit of detection and quantitation, accuracy, selectivity, and precision. Experimental conditions were optimized by a univariate method, yielding linear calibration curves in a concentration range from 2.0 × 10−6 mol L−1 to 2.0 × 10−4 mol L−1 using NCN; 2.0 × 10−6 mol L−1 to 1.0 × 10−4 mol L−1 using BCA and 6.0 × 10−7 mol L−1 to 1.2 × 10−4 mol L−1 using BCS. The achieved analytical frequency was 90 h−1 for all three ligands. The method was successfully employed for NACET determination in pharmaceutical preparations, indicating that this FIA method fulfilled all the essential demands for the determination of NACET in quality control laboratories, as it combined low instrument and reagent costs with a high sampling rate.
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Affiliation(s)
- Lea Kukoc-Modun
- Department of Analytical Chemistry, Faculty of Chemistry and Technology, University of Split, Ruđera Boškovića 35, 21000 Split, Croatia;
- Correspondence: ; Tel.: +385-98706693
| | - Tomislav Kraljević
- Department of Chemistry, Faculty of Science and Education, University of Mostar, Matice hrvatske bb, 88000 Mostar, Bosnia and Herzegovina;
| | - Dimitrios Tsikas
- Institute of Toxicology, Core Unit Proteomics, Hannover Medical School, Carl-Neuberg-Str. 1, 30625 Hannover, Germany;
| | - Njegomir Radić
- Department of Analytical Chemistry, Faculty of Chemistry and Technology, University of Split, Ruđera Boškovića 35, 21000 Split, Croatia;
| | - Darko Modun
- Department of Pharmacy, School of Medicine, University of Split, Šoltanska 2, 21000 Split, Croatia;
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Ayala Quezada A, Ohara K, Ratanawimarnwong N, Nacapricha D, Murakami H, Teshima N, Sakai T. Stopped-in-loop flow analysis system for successive determination of trace vanadium and iron in drinking water using their catalytic reactions☆. Talanta 2015; 144:844-50. [DOI: 10.1016/j.talanta.2015.07.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2015] [Revised: 06/30/2015] [Accepted: 07/03/2015] [Indexed: 10/23/2022]
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3
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AYALA QUEZADA A, MURAKAMI H, TESHIMA N, SAKAI T, MOTOMIZU S. Advanced Stopped-in-Loop Flow Analysis with a Reagents-Merging Zones Technique for a Catalytic Successive Determination of Vanadium and Iron. ANAL SCI 2015; 31:1099-103. [DOI: 10.2116/analsci.31.1099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
| | - Hiroya MURAKAMI
- Department of Applied Chemistry, Aichi Institute of Technology
| | - Norio TESHIMA
- Department of Applied Chemistry, Aichi Institute of Technology
| | - Tadao SAKAI
- Department of Applied Chemistry, Aichi Institute of Technology
| | - Shoji MOTOMIZU
- Department of Applied Chemistry, Aichi Institute of Technology
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Nacapricha D, Sastranurak P, Mantim T, Amornthammarong N, Uraisin K, Boonpanaid C, Chuyprasartwattana C, Wilairat P. Cross injection analysis: Concept and operation for simultaneous injection of sample and reagents in flow analysis. Talanta 2013; 110:89-95. [DOI: 10.1016/j.talanta.2013.02.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2013] [Revised: 02/06/2013] [Accepted: 02/06/2013] [Indexed: 11/25/2022]
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Gomes TF, Vida AC, Sasaki MK, Silva CR, Barros VA, Zagatto EA. A flow system with zone merging and zone trapping in the main reactor applied to spectrophotometric catalytic determination of cobalt in grasses. Talanta 2012. [DOI: 10.1016/j.talanta.2012.07.032] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Liu Y, Li Y, Yang L. Histidine functionalized multi-walled carbon nanotubes as sorbent for flow injection-electrothermal atomic absorption spectrometric ultrasensitive determination of trace vanadium (V) in biological and environmental samples. Microchem J 2012. [DOI: 10.1016/j.microc.2012.04.009] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Miyake M, Nakajima H, Hemmi A, Yahiro M, Adachi C, Soh N, Ishimatsu R, Nakano K, Uchiyama K, Imato T. Performance of an organic photodiode as an optical detector and its application to fluorometric flow-immunoassay for IgA. Talanta 2012; 96:132-9. [PMID: 22817940 DOI: 10.1016/j.talanta.2012.02.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2011] [Revised: 01/30/2012] [Accepted: 02/03/2012] [Indexed: 10/14/2022]
Abstract
The performance of an organic thin film photodiode (OPD), fabricated from a hetero-junction comprised of two layers of C(60) and a phthalocyanine-Cu(II) complex was evaluated by detecting the chemiluminescence generated from the reaction of luminol with horseradish peroxidase in the presence of H(2)O(2), and the fluorescence from resorufin, as an optical detector. The photocurrent of the OPD was linear with respect to the power of light from a commercial LED. The sensitivity of the OPD was sufficient for detecting chemiluminescence with a power 0.1μW/cm(2). The OPD was successfully used in a flow-immunoassay for IgA, a marker of human stress, in which a sandwich immunoassay was carried out on the microchip and the fluorescence from resorufin, produced by the enzymatic reaction, was detected. The detection limits for resorufin and IgA were 5.0μM and 16ng/mL, respectively. The photosensitivity of the OPD remained relatively constant for a minimum of one year.
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Affiliation(s)
- Mayo Miyake
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
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Vida AC, Sasaki MK, Gomes TF, Silva CR, Feres MA, Zagatto E. Zone trapping/merging zones in flow analysis: A novel approach for rapid assays involving relatively slow chemical reactions. Talanta 2011; 85:259-63. [DOI: 10.1016/j.talanta.2011.03.065] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2011] [Revised: 03/21/2011] [Accepted: 03/24/2011] [Indexed: 11/30/2022]
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Sharma RP, Singh A, Venugopalan P, Harrison WT. Role of weak interactions in binding of aryldicarboxylate ion: Synthesis, spectroscopic characterization, single-crystal X-ray structure determination and packing analysis of [Co(phen)2CO3]2(C8H4O4)·15H2O. J Mol Struct 2010. [DOI: 10.1016/j.molstruc.2010.06.039] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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TESHIMA N, NOGUCHI D, JOICHI Y, LENGHOR N, OHNO N, SAKAI T, MOTOMIZU S. Simultaneous Injection-Effective Mixing Analysis of Palladium. ANAL SCI 2010; 26:143-4. [DOI: 10.2116/analsci.26.143] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Norio TESHIMA
- Department of Applied Chemistry, Aichi Institute of Technology
| | - Daisuke NOGUCHI
- Department of Applied Chemistry, Aichi Institute of Technology
| | - Yasutaka JOICHI
- Graduate School of Natural Science and Technology, Okayama University
| | - Narong LENGHOR
- Graduate School of Natural Science and Technology, Okayama University
| | - Noriko OHNO
- Chemistry Laboratory, School of Business Administration, Asahi University
| | - Tadao SAKAI
- Department of Applied Chemistry, Aichi Institute of Technology
| | - Shoji MOTOMIZU
- Graduate School of Natural Science and Technology, Okayama University
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Teshima N, Kuno M, Ueda M, Ueda H, Ohno S, Sakai T. Automated stopped-in-dual-loop flow analysis system for catalytic determination of vanadium in drinking water. Talanta 2009; 79:517-22. [DOI: 10.1016/j.talanta.2009.04.018] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2009] [Revised: 04/07/2009] [Accepted: 04/08/2009] [Indexed: 11/28/2022]
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SAKAI T, TESHIMA N. Advancement of Flow-based Analysis with Alternative Chemical Reactions and New Devices for Environmental and Biological Samples. ANAL SCI 2008; 24:855-64. [DOI: 10.2116/analsci.24.855] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Tadao SAKAI
- Department of Applied Chemistry, Aichi Institute of Technology
| | - Norio TESHIMA
- Department of Applied Chemistry, Aichi Institute of Technology
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Kanchana WI, Sakai T, Teshima N, Katoh S, Grudpan K. Successive determination of urinary protein and glucose using spectrophotometric sequential injection method. Anal Chim Acta 2007; 604:139-46. [DOI: 10.1016/j.aca.2007.10.010] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2007] [Revised: 10/05/2007] [Accepted: 10/08/2007] [Indexed: 10/22/2022]
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