1
|
Rai A, Jha NS, Sharma P, Tiwari S, Subramanian R. Curcumin-derivatives as fluorescence-electrochemical dual probe for ultrasensitive detections of picric acid in aqueous media. Talanta 2024; 275:126113. [PMID: 38669958 DOI: 10.1016/j.talanta.2024.126113] [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: 02/20/2024] [Revised: 04/05/2024] [Accepted: 04/13/2024] [Indexed: 04/28/2024]
Abstract
We are reporting the two curcumin derivatives, ferrocenyl curcumin (Fc-cur) and 4-nitro-benzylidene curcumin (NBC), as a probe through dual modalities, i.e., fluorescence and electrochemical methods, for the detection of nitro-analytes, such as picric acid (PA). The probes exhibited aggregation-induced enhanced emission (AIEE), and the addition of picric acid (PA) demonstrated good and specific fluorimetric identification of PA in the aggregated state. By using density functional theory (DFT), the mechanism of picric acid's (PA) interactions with the probes was further investigated. DFT studies shows evidence of charge transfer from curcumin derivatives probe to picric acid resulting into the formation of an adduct. The reduction of trinitrophenol (PA) to 2, 4, 6-trinitrosophenol was investigated utilizing a probe-modified glassy carbon electrode (GCE) with a good detection limit of 9.63 ± 0.001 pM and 41.01 ± 0.002 pM, respectively, for Fc-cur@GCE and NBC@GCE, taking into account the redox behavior of the probe. The applicability of the designed sensor has been utilized for real-time application in the estimation of picric acid in several water samples collected from the different source.
Collapse
Affiliation(s)
- Anupama Rai
- Department of Chemistry, National Institute of Technology, Ashok Rajpath, Patna, 800005, Bihar, India
| | - Niki Sweta Jha
- Department of Chemistry, National Institute of Technology, Ashok Rajpath, Patna, 800005, Bihar, India.
| | - Padma Sharma
- Department of Chemistry, National Institute of Technology, Ashok Rajpath, Patna, 800005, Bihar, India
| | - Suresh Tiwari
- Department of Chemistry, Indian Institute of Technology, Patna, 801106, Bihar, India
| | - Ranga Subramanian
- Department of Chemistry, Indian Institute of Technology, Patna, 801106, Bihar, India
| |
Collapse
|
2
|
Koç Ö, Üzer A, Apak R. Heteroatom-Doped Carbon Quantum Dots and Polymer Composite as Dual-Mode Nanoprobe for Fluorometric and Colorimetric Determination of Picric Acid. ACS APPLIED MATERIALS & INTERFACES 2023; 15:42066-42079. [PMID: 37611222 PMCID: PMC10485801 DOI: 10.1021/acsami.3c07938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 08/10/2023] [Indexed: 08/25/2023]
Abstract
Oxygen- and nitrogen-heteroatom-doped, water-dispersible, and bright blue-fluorescent carbon dots (ON-CDs) were prepared for the selective and sensitive determination of 2,4,6-trinitrophenol (picric acid, PA). ON-CDs with 49.7% quantum yield were one-pot manufactured by the reflux method using citric acid, d-glucose, and ethylenediamine precursors. The surface morphology of ON-CDs was determined by scanning transmission electron microscopy, high-resolution transmission electron microscopy, dynamic light scattering, Raman, infrared, and X-ray photoelectron spectroscopy techniques, and their photophysical properties were estimated by fluorescence spectroscopy, UV-vis spectroscopy, fluorescence lifetime measurement, and 3D-fluorescence excitation-emission matrix analysis. ON-CDs at an average particle size of 3.0 nm had excitation/emission wavelengths of 355 and 455 nm, respectively. With the dominant inner-filter effect- and hydrogen-bonding interaction-based static fluorescence quenching phenomena supported by ground-state charge-transfer complexation (CTC), the fluorescence of ON-CDs was selectively quenched with PA in the presence of various types of explosives (i.e., 2,4,6-trinitrotoluene, tetryl, 1,3,5-trinitroperhydro-1,3,5-triazine, 1,3,5,7-tetranitro-1,3,5,7-tetraazacyclooctane, pentaerythritol tetranitrate, 3-nitro-1,2,4-triazole-5-one, and TATP-hydrolyzed H2O2). The analytical results showed that the emission intensity varied linearly with a correlation coefficient of 0.9987 over a PA concentration range from 1.0 × 10-9 to 11.0 × 10-9 M. As a result of ground-state interaction (H-bonding and CTC) of ON-CDs with PA, an orange-colored complex was formed different from the characteristic yellow color of PA in an aqueous medium, allowing naked-eye detection of PA. The detection limits for PA with ON-CDs were 12.5 × 10-12 M (12.5 pM) by emission measurement and 9.0 × 10-10 M (0.9 nM) by absorption measurement. In the presence of synthetic explosive mixtures, common soil cations/anions, and camouflage materials, PA was recovered in the range of 95.2 and 102.5%. The developed method was statistically validated against a reference liquid chromatography coupled to tandem mass spectrometry method applied to PA-contaminated soil. In addition, a poly(vinyl alcohol)-based polymer composite film {PF(ON-CDs)} was prepared by incorporating ON-CDs, enabling the smartphone-assisted fluorometric detection of PA.
Collapse
Affiliation(s)
- Ömer
Kaan Koç
- Institute
of Graduate Studies, Istanbul University-Cerrahpaşa, Avcilar, Istanbul 34320, Turkey
- Department
of Chemistry, Faculty of Engineering, Istanbul
University-Cerrahpaşa, Avcilar, Istanbul 34320, Turkey
| | - Ayşem Üzer
- Department
of Chemistry, Faculty of Engineering, Istanbul
University-Cerrahpaşa, Avcilar, Istanbul 34320, Turkey
| | - Reşat Apak
- Department
of Chemistry, Faculty of Engineering, Istanbul
University-Cerrahpaşa, Avcilar, Istanbul 34320, Turkey
- Bayraktar
Neighborhood, Turkish Academy of Sciences
(TUBA), Vedat Dalokay
Street No: 112, Çankaya, Ankara 06690, Turkey
| |
Collapse
|
3
|
Weiss F, Chawaguta A, Tolpeit M, Volk V, Schiller A, Ruzsanyi V, Hillinger P, Lederer W, Märk TD, Mayhew CA. Detecting Hexafluoroisopropanol Using Soft Chemical Ionization Mass Spectrometry and Analytical Applications to Exhaled Breath. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2023; 34:958-968. [PMID: 36995741 PMCID: PMC10161230 DOI: 10.1021/jasms.3c00042] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Here we explore the potential use of proton transfer reaction/selective reagent ion-time-of-flight-mass spectrometry (PTR/SRI-ToF-MS) to monitor hexafluoroisopropanol (HFIP) in breath. Investigations of the reagent ions H3O+, NO+, and O2+• are reported using dry (relative humidity (rH) ≈ 0%) and humid (rH ≈ 100%)) nitrogen gas containing traces of HFIP, i.e., divorced from the complex chemical environment of exhaled breath. HFIP shows no observable reaction with H3O+ and NO+, but it does react efficiently with O2+• via dissociative charge transfer resulting in CHF2+, CF3+, C2HF2O+, and C2H2F3O+. A minor competing hydride abstraction channel results in C3HF6O+ + HO2• and, following an elimination of HF, C3F5O+. There are two issues associated with the use of the three dominant product ions of HFIP, CHF2+, CF3+, and C2H2F3O+, to monitor it in breath. One is that CHF2+ and CF3+ also result from the reaction of O2+• with the more abundant sevoflurane. The second is the facile reaction of these product ions with water, which reduces analytical sensitivity to detect HFIP in humid breath. To overcome the first issue, C2H2F3O+ is the ion marker for HFIP. The second issue is surmounted by using a Nafion tube to reduce the breath sample's humidity prior to its introduction into drift tube. The success of this approach is illustrated by comparing the product ion signals either in dry or humid nitrogen gas flows and with or without the use of the Nafion tube, and practically from the analysis of a postoperative exhaled breath sample from a patient volunteer.
Collapse
Affiliation(s)
- Florentin Weiss
- Institute for Breath Research, Universität Innsbruck, Innrain 66, A-6020 Innsbruck, Austria
| | - Anesu Chawaguta
- Institute for Breath Research, Universität Innsbruck, Innrain 66, A-6020 Innsbruck, Austria
| | - Matthias Tolpeit
- Department of Anaesthesiology and Critical Care, Medical University of Innsbruck, Anichstraße 35, A-6020 Innsbruck, Austria
| | - Valeria Volk
- Department of Anaesthesiology and Critical Care, Medical University of Innsbruck, Anichstraße 35, A-6020 Innsbruck, Austria
| | - Arne Schiller
- Institute for Breath Research, Universität Innsbruck, Innrain 66, A-6020 Innsbruck, Austria
| | - Veronika Ruzsanyi
- Institute for Breath Research, Universität Innsbruck, Innrain 66, A-6020 Innsbruck, Austria
| | - Petra Hillinger
- Department of Anaesthesiology and Critical Care, Medical University of Innsbruck, Anichstraße 35, A-6020 Innsbruck, Austria
| | - Wolfgang Lederer
- Department of Anaesthesiology and Critical Care, Medical University of Innsbruck, Anichstraße 35, A-6020 Innsbruck, Austria
| | - Tilmann D Märk
- Institute for Ion Physics and Applied Physics, Universität Innsbruck, Technikerstraße 25/3, A-6020 Innsbruck, Austria
| | - Chris A Mayhew
- Institute for Breath Research, Universität Innsbruck, Innrain 66, A-6020 Innsbruck, Austria
| |
Collapse
|
4
|
Hu JH, Zhang W, Ren CX, Xiong Y, Zhang JY, He J, Huang Y, Tao Z, Xiao X. A novel portable smart phone sensing platform based on a supramolecular fluorescence probe for quick visual quantitative detection of picric acid. Anal Chim Acta 2023; 1254:341095. [PMID: 37005021 DOI: 10.1016/j.aca.2023.341095] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 03/04/2023] [Accepted: 03/13/2023] [Indexed: 04/03/2023]
Abstract
Picric acid (PA) is a lethal explosive substance that is easily soluble in water and harmful to the environment. Here, a supramolecular polymer material BTPY@Q[8] with aggregation induced emission (AIE) was prepared by supramolecular self-assembly of cucurbit uril (Q[8]) and 1,3,5-tris[4-(pyridin-4-yl) phenyl] benzene derivative (BTPY), which exhibited aggregation-induced fluorescence enhancement. To this supramolecular self-assembly, the addition of a number of nitrophenols was found to have no obvious effect on the fluorescence, however on addition of PA, the fluorescence intensity underwent a dramatic quench. For PA, BTPY@Q[8] had sensitive specificity and effective selectivity. Based on this, a quick and simple on-site visual PA fluorescence quantitative detection platform was developed using smart phones, and the platform was used to monitor temperature. Machine learning (ML) is a popular pattern recognition technology, which can accurately predict the results from data. Therefore, ML has much more potential for analyzing and improving sensing data than the widely used statistical pattern recognition method. In the field of analytical science, the sensing platform offers a reliable method for the quantitative detection of PA that can be applied to other analytes or micropollutant screening.
Collapse
|
5
|
Jalali Sarvestani MR, Doroudi Z, Ahmadi R. Picric Acid Adsorption on the Surface of Pristine and Al-doped Boron Nitride Nanocluster: a Comprehensive Theoretical Study. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B 2022. [DOI: 10.1134/s1990793122010286] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
6
|
Goel A, Malhotra R. Efficient detection of Picric acid by pyranone based Schiff base as a chemosensor. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131619] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
|
7
|
Hegen O, Salazar Gómez JI, Schlögl R, Ruland H. The potential of NO + and O 2 +• in switchable reagent ion proton transfer reaction time-of-flight mass spectrometry. MASS SPECTROMETRY REVIEWS 2022:e21770. [PMID: 35076949 DOI: 10.1002/mas.21770] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Selected ion flow tube mass spectrometry (SIFT-MS) and proton transfer reaction mass spectrometry with switchable reagent ion capability (PTR+SRI-MS) are analytical techniques for real-time qualification and quantification of compounds in gas samples with trace level concentrations. In the detection process, neutral compounds-mainly volatile organic compounds-are ionized via chemical ionization with ionic reagents or primary ions. The most common reagent ions are H3 O+ , NO+ and O2 +• . While ionization with H3 O+ occurs by means of proton transfer, the ionization via NO+ and O2 +• offers a larger variety on ionization pathways, as charge transfer, hydride abstraction and so on are possible. The distribution of the reactant into various reaction channels depends not only on the usage of either NO+ or O2 +• , but also on the class of analyte compounds. Furthermore, the choice of the reaction conditions as well as the choice of either SIFT-MS or PTR+SRI-MS might have a large impact on the resulting products. Therefore, an overview of both NO+ and O2 +• as reagent ions is given, showing differences between SIFT-MS and PTR+SRI-MS as used analytical methods revealing the potential how the knowledge obtained with H3 O+ for different classes of compounds can be extended with the usage of NO+ and O2 +• .
Collapse
Affiliation(s)
- Oliver Hegen
- Department of Heterogeneous Reactions, Max Planck Institute for Chemical Energy Conversion, Mülheim an der Ruhr, Deutschland
| | - Jorge I Salazar Gómez
- Department of Heterogeneous Reactions, Max Planck Institute for Chemical Energy Conversion, Mülheim an der Ruhr, Deutschland
| | - Robert Schlögl
- Department of Heterogeneous Reactions, Max Planck Institute for Chemical Energy Conversion, Mülheim an der Ruhr, Deutschland
- Department of Inorganic Chemistry, Fritz Haber Institute of the Max Planck Society, Berlin, Germany
| | - Holger Ruland
- Department of Heterogeneous Reactions, Max Planck Institute for Chemical Energy Conversion, Mülheim an der Ruhr, Deutschland
| |
Collapse
|
8
|
Chen SH, Luo SH, Xing LJ, Jiang K, Huo YP, Chen Q, Wang ZY. Rational Design and Facile Synthesis of Dual-State Emission Fluorophores: Expanding Functionality for the Sensitive Detection of Nitroaromatic Compounds. Chemistry 2021; 28:e202103478. [PMID: 34735034 DOI: 10.1002/chem.202103478] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Indexed: 12/26/2022]
Abstract
Six novel benzimidazole-based D-π-A compounds 4 a-4 f were concisely synthesized by attaching different donor/acceptor units to the skeleton of 1,3-bis(1H-benzimidazol-2-yl)benzene on its 5-position through an ethynyl link. Due to the twisted conformation and effective conjugation structure, these dual-state emission (DSE) molecules show intense and multifarious photoluminescence, and their fluorescence quantum yields in solution and solid state can be up to 96.16 and 69.82 %, respectively. Especially, for excellent photostability, obvious solvatofluorochromic and extraordinary wide range of solvent compatibility, DSE molecule 4 a is a multifunctional fluorescent probe for the visual detection of nitroaromatic compounds (NACs) with the limit of detection as low as 10-7 M. The quenching mechanism has been proved as the results of photoinduced electron transfer and fluorescence resonance energy transfer processes. Importantly, probe 4 a can sensitively detect NACs not only in real water samples, but also on 4 a-coated strips and 4 a@PBAT thin films.
Collapse
Affiliation(s)
- Si-Hong Chen
- School of Chemistry, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, Guangzhou, 510006, P. R. China
| | - Shi-He Luo
- School of Chemistry, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, Guangzhou, 510006, P. R. China.,Key Laboratory of Functional Molecular Engineering of Guangdong Province, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Long-Jiang Xing
- School of Chemical Engineering & Light Industry, Guangdong University of Technology, Guangzhou, 510006, P. R. China
| | - Kai Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Yan-Ping Huo
- School of Chemical Engineering & Light Industry, Guangdong University of Technology, Guangzhou, 510006, P. R. China
| | - Qi Chen
- School of Chemistry, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, Guangzhou, 510006, P. R. China
| | - Zhao-Yang Wang
- School of Chemistry, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, Guangzhou, 510006, P. R. China.,Key Laboratory of Functional Molecular Engineering of Guangdong Province, South China University of Technology, Guangzhou, 510640, P. R. China
| |
Collapse
|
9
|
Wang X, Liu Y, Zhou Q, Sheng X, Sun Y, Zhou B, Zhao J, Guo J. A reliable and facile fluorescent sensor from carbon dots for sensing 2,4,6-trinitrophenol based on inner filter effect. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 720:137680. [PMID: 32325600 DOI: 10.1016/j.scitotenv.2020.137680] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 02/20/2020] [Accepted: 03/01/2020] [Indexed: 06/11/2023]
Abstract
2,4,6-Trinitrophenol (TNP) has absorbed much concerns because of its toxic effect and threat on the environment, which results from the fact that it is an important and universal reagent widely utilized for manufacturing many products. It is of great necessity to explore facile and efficient methods for monitoring TNP. In present study, carbon dots (CDs), a new carbonaceous nanomaterial with strong fluorescence, was applied to build a novel sensor for highly sensitive and selective detection of TNP. In the sensing procedure, the fluorescence intensity of as-prepared CDs was diminished with the presence of TNP due to inner filter effect (IFE) quenching mechanism. The sensitivity of the fluorescent sensor was very high with limit of detection down to 5.37 ng mL-1. This fluorescent sensor was evaluated and excellent spiked recoveries were gained, which demonstrated that the developed sensor would be a robust tool for environmental applications.
Collapse
Affiliation(s)
- Xin Wang
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing 102249, China
| | - Yongli Liu
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing 102249, China.; Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, School of Environment, Henan Normal University, Xinxiang, Henan 453007, China
| | - Qingxiang Zhou
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing 102249, China..
| | - Xueying Sheng
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing 102249, China
| | - Yi Sun
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing 102249, China
| | - Boyao Zhou
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing 102249, China
| | - Jingyi Zhao
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing 102249, China
| | - Jinghan Guo
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing 102249, China
| |
Collapse
|
10
|
Olivenza-León D, Mayhew CA, González-Méndez R. Selective Reagent Ion Mass Spectrometric Investigations of the Nitroanilines. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2019; 30:2259-2266. [PMID: 31502221 PMCID: PMC6828634 DOI: 10.1007/s13361-019-02325-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2019] [Revised: 08/14/2019] [Accepted: 08/15/2019] [Indexed: 06/10/2023]
Abstract
This paper presents an investigation of proton and charge transfer reactions to 2-, 3- and 4-nitroanilines (C6H6N2O2) involving the reagent ions H3O+·(H2O)n (n = 0, 1 and 2) and O2+, respectively, as a function of reduced electric field (60-240 Td), using Selective Reagent Ion-Time-of-Flight-Mass Spectrometry (SRI-ToF-MS). To aid in the interpretation of the H3O+·(H2O)n experimental data, the proton affinities and gas-phase basicities for the three nitroaniline isomers have been determined using density functional theory. These calculations show that proton transfer from both the H3O+ and H3O+·H2O reagent ions to the nitroanilines will be exoergic and hence efficient, with the reactions proceeding at the collisional rate. For proton transfer from H3O+ to the NO2 sites, the exoergicities are 171 kJ mol-1 (1.8 eV), 147 kJ mol-1 (1.5 eV) and 194 kJ mol-1 (2.0 eV) for 2-, 3- and 4-nitroanilines, respectively. Electron transfer from all three of the nitroanilines is also significantly exothermic by approximately 4 eV. Although a substantial transfer of energy occurs during the ion/molecule reactions, the processes are found to predominantly proceed via non-dissociative pathways over a large reduced electric field range. Only at relatively high reduced electric fields (> 180 Td) is dissociative proton and charge transfer observed. Differences in fragment product ions and their intensities provide a means to distinguish the isomers, with proton transfer distinguishing 2-nitroaniline (2-NA) from 3- and 4-NA, and charge transfer distinguishing 4-NA from 2- and 3-NA, thereby providing a means to enhance selectivity using SRI-ToF-MS.
Collapse
Affiliation(s)
- David Olivenza-León
- Molecular Physics Group, School of Physics and Astronomy, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | - Chris A Mayhew
- Molecular Physics Group, School of Physics and Astronomy, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
- Institut für Atemgasanalytik, Leopold-Franzens-Universität Innsbruck, Rathausplatz 4, 6850, Dornbirn, Austria
| | - Ramón González-Méndez
- Molecular Physics Group, School of Physics and Astronomy, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK.
- Centre for Agroecology, Water and Resilience, Coventry University, Coventry, CV1 5FB, UK.
| |
Collapse
|
11
|
Xiong S, Marin L, Duan L, Cheng X. Fluorescent chitosan hydrogel for highly and selectively sensing of p-nitrophenol and 2, 4, 6-trinitrophenol. Carbohydr Polym 2019; 225:115253. [PMID: 31521279 DOI: 10.1016/j.carbpol.2019.115253] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Revised: 07/31/2019] [Accepted: 08/25/2019] [Indexed: 12/20/2022]
Abstract
Nitroaromatic compounds, especially 2, 4, 6-trinitrophenol, have strong biological toxicity and explosive risks, so the detection of 2, 4, 6-trinitrophenol exhibit importantly practical and scientific significance. In this work, three fluorescence functionalized chitosan CNS 3, CNS 4 and CNS 5 were prepared using chitosan as matrix. When 2, 4, 6-trinitrophenol (TNP) and/or p-nitrophenol (4-NP) was present in spot, these fluorescent chitosan sensors produced notable fluorescence quenching. It renders the chitosan sensing ability to detect TNP and 4-NP selectively and sensitively. The sensing mechanism is investigated as well. When introduced electron-rich moieties to the fluorescent chitosan, the sensitive detecting ability could be obtained. Excellent recognition ability could reach as low as 0.28 μM. The fluorescence fictionalization cause slight influence to the gel performance of chitosan.
Collapse
Affiliation(s)
- Shuangyu Xiong
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, 430073, China
| | - Luminita Marin
- "Petru Poni'' Institute of Macromolecular Chemistry of Romanian Academy, Iasi, Romania.
| | - Lian Duan
- School of Textiles and Garments, Southwest University, Chongqing, 400715, PR China
| | - Xinjian Cheng
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, 430073, China.
| |
Collapse
|
12
|
Guo P, Zheng S, Wang Y, Zhuang Q, Ni Y. Synthesis of Fluorescent Tremella-like Carbon Nanosheets and Their Application for Sensing of 2,4,6-trinitrophenol. ANAL LETT 2019. [DOI: 10.1080/00032719.2019.1636809] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Pan Guo
- College of Chemistry, Nanchang University, Nanchang, Jiangxi, China
| | - Song Zheng
- College of Chemistry, Nanchang University, Nanchang, Jiangxi, China
| | - Yong Wang
- College of Chemistry, Nanchang University, Nanchang, Jiangxi, China
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, China
| | - Qianfen Zhuang
- College of Chemistry, Nanchang University, Nanchang, Jiangxi, China
| | - Yongnian Ni
- College of Chemistry, Nanchang University, Nanchang, Jiangxi, China
| |
Collapse
|
13
|
Malásková M, Olivenza-León D, Piel F, Mochalski P, Sulzer P, Jürschik S, Mayhew CA, Märk TD. Compendium of the Reactions of H 3O + With Selected Ketones of Relevance to Breath Analysis Using Proton Transfer Reaction Mass Spectrometry. Front Chem 2019; 7:401. [PMID: 31263690 PMCID: PMC6584912 DOI: 10.3389/fchem.2019.00401] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Accepted: 05/17/2019] [Indexed: 12/04/2022] Open
Abstract
Soft chemical ionization mass spectrometric techniques, such as proton transfer reaction mass spectrometry (PTR-MS), are often used in breath analysis, being particularly powerful for real-time measurements. To ascertain the type and concentration of volatiles in exhaled breath clearly assignable product ions resulting from these volatiles need to be determined. This is difficult for compounds where isomers are common, and one important class of breath volatiles where this occurs are ketones. Here we present a series of extensive measurements on the reactions of H3O+ with a selection of ketones using PTR-MS. Of particular interest is to determine if ketone isomers can be distinguished without the need for pre-separation by manipulating the ion chemistry through changes in the reduced electric field. An additional issue for breath analysis is that the product ion distributions for these breath volatiles are usually determined from direct PTR-MS measurements of the compounds under the normal operating conditions of the instruments. Generally, no account is made for the effects on the ion-molecule reactions by the introduction of humid air samples or increased CO2 concentrations into the drift tubes of these analytical devices resulting from breath. Therefore, another motivation of this study is to determine the effects, if any, on the product ion distributions under the humid conditions associated with breath sampling. However, the ultimate objective for this study is to provide a valuable database of use to other researchers in the field of breath analysis to aid in analysis and quantification of trace amounts of ketones in human breath. Here we present a comprehensive compendium of the product ion distributions as a function of the reduced electric field for the reactions of H3O+. (H2O)n (n = 0 and 1) with nineteen ketones under normal and humid (100% relative humidity for 37 °C) PTR-MS conditions. The ketones selected for inclusion in this compendium are (in order of increasing molecular weight): 2-butanone; 2-pentanone; 3-pentanone; 2-hexanone; 3-hexanone; 2-heptanone; 3-heptanone; 4-heptanone; 3-octanone; 2-nonanone; 3-nonanone; 2-decanone; 3-decanone; cyclohexanone; 3-methyl-2-butanone; 3-methyl-2-pentanone; 2-methyl-3-pentanone; 2-methyl-3-hexanone; and 2-methyl-3-heptanone.
Collapse
Affiliation(s)
- Michaela Malásková
- Institute for Breath Research, Fakultät für Chemie und Pharmazie, Leopold-Franzens-Universität Innsbruck, Dornbirn, Austria
| | - David Olivenza-León
- Molecular Physics Group, School of Physics and Astronomy, University of Birmingham, Birmingham, United Kingdom
| | - Felix Piel
- IONICON Analytik Gesellschaft m.b.H., Innsbruck, Austria.,Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck, Innsbruck, Austria
| | - Paweł Mochalski
- Institute for Breath Research, Fakultät für Chemie und Pharmazie, Leopold-Franzens-Universität Innsbruck, Dornbirn, Austria.,Institute of Chemistry, Faculty of Mathematics and Natural Sciences, Jan Kochanowski University, Kielce, Poland
| | - Philipp Sulzer
- IONICON Analytik Gesellschaft m.b.H., Innsbruck, Austria
| | | | - Chris A Mayhew
- Institute for Breath Research, Fakultät für Chemie und Pharmazie, Leopold-Franzens-Universität Innsbruck, Dornbirn, Austria.,Molecular Physics Group, School of Physics and Astronomy, University of Birmingham, Birmingham, United Kingdom
| | - Tilmann D Märk
- IONICON Analytik Gesellschaft m.b.H., Innsbruck, Austria.,Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck, Innsbruck, Austria
| |
Collapse
|
14
|
Ma J, Bian L, Zhao L, Feng X, Zhao L, Wang Z, Pu Q. Dialysed caramel as an effective fluorophore for the simultaneous detection of three nitrophenols. Talanta 2019; 197:159-167. [DOI: 10.1016/j.talanta.2019.01.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 12/25/2018] [Accepted: 01/02/2019] [Indexed: 12/31/2022]
|
15
|
González-Méndez R, Mayhew CA. Applications of Direct Injection Soft Chemical Ionisation-Mass Spectrometry for the Detection of Pre-blast Smokeless Powder Organic Additives. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2019; 30:615-624. [PMID: 30761477 DOI: 10.1007/s13361-018-02130-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Revised: 12/13/2018] [Accepted: 12/28/2018] [Indexed: 05/17/2023]
Abstract
Analysis of smokeless powders is of interest from forensics and security perspectives. This article reports the detection of smokeless powder organic additives (in their pre-detonation condition), namely the stabiliser diphenylamine and its derivatives 2-nitrodiphenylamine and 4-nitrodiphenylamine, and the additives (used both as stabilisers and plasticisers) methyl centralite and ethyl centralite, by means of swab sampling followed by thermal desorption and direct injection soft chemical ionisation-mass spectrometry. Investigations on the product ions resulting from the reactions of the reagent ions H3O+ and O2+ with additives as a function of reduced electric field are reported. The method was comprehensively evaluated in terms of linearity, sensitivity and precision. For H3O+, the limits of detection (LoD) are in the range of 41-88 pg of additive, for which the accuracy varied between 1.5 and 3.2%, precision varied between 3.7 and 7.3% and linearity showed R2 ≥ 0.9991. For O2+, LoD are in the range of 72 to 1.4 ng, with an accuracy of between 2.8 and 4.9% and a precision between 4.5 and 8.6% and R2 ≥ 0.9914. The validated methodology was applied to the analysis of commercial pre-blast gun powders from different manufacturers. Graphical Abstract.
Collapse
Affiliation(s)
- Ramón González-Méndez
- Molecular Physics Group, School of Physics and Astronomy, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK.
- Centre for Agroecology, Water and Resilience, Coventry University, Coventry, CV1 5FB, UK.
| | - Chris A Mayhew
- Molecular Physics Group, School of Physics and Astronomy, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
- Institut für Atemgasanalytik, Leopold-Franzens-Universität Innsbruck, Rathausplatz 4, A-6850, Dornbirn, Austria
| |
Collapse
|
16
|
Li N, Liu SG, Fan YZ, Ju YJ, Xiao N, Luo HQ, Li NB. Adenosine-derived doped carbon dots: From an insight into effect of N/P co-doping on emission to highly sensitive picric acid sensing. Anal Chim Acta 2018; 1013:63-70. [DOI: 10.1016/j.aca.2018.01.049] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Revised: 01/26/2018] [Accepted: 01/30/2018] [Indexed: 01/09/2023]
|
17
|
González-Méndez R, Watts P, Reich DF, Mullock SJ, Cairns S, Hickey P, Brookes M, Mayhew CA. Use of Rapid Reduced Electric Field Switching to Enhance Compound Specificity for Proton Transfer Reaction-Mass Spectrometry. Anal Chem 2018; 90:5664-5670. [DOI: 10.1021/acs.analchem.7b05211] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ramón González-Méndez
- Molecular Physics Group, School of Physics and Astronomy, University of Birmingham, Edgbaston, Birmingham, B15 2TT, U.K
| | - Peter Watts
- Molecular Physics Group, School of Physics and Astronomy, University of Birmingham, Edgbaston, Birmingham, B15 2TT, U.K
| | - D. Fraser Reich
- Kore Technology, Ltd., Cambridgeshire Business Park, Ely, Cambridgeshire, CB7 4EA, U.K
| | - Stephen J. Mullock
- Kore Technology, Ltd., Cambridgeshire Business Park, Ely, Cambridgeshire, CB7 4EA, U.K
| | - Stuart Cairns
- Defence Science and Technology Laboratory, Fort Halstead, Sevenoaks, Kent, TN14 7BP, U.K
| | - Peter Hickey
- Defence Science and Technology Laboratory, Fort Halstead, Sevenoaks, Kent, TN14 7BP, U.K
| | - Matthew Brookes
- Defence Science and Technology Laboratory, Porton Down, Salisbury, Wilshire SP4 0JQ, U.K
| | - Chris A. Mayhew
- Molecular Physics Group, School of Physics and Astronomy, University of Birmingham, Edgbaston, Birmingham, B15 2TT, U.K
- Institut für Atemgasanalytik, Leopold-Franzens-Universität Innsbruck, Rathausplatz 4, 6850, Dornbirn, Austria
| |
Collapse
|
18
|
Peinado I, Mason M, Biasioli F, Scampicchio M. Hyphenation of proton transfer reaction mass spectrometry with thermal analysis for monitoring the thermal degradation of retinyl acetate. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2018; 32:57-62. [PMID: 28913850 DOI: 10.1002/rcm.7993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 09/05/2017] [Accepted: 09/08/2017] [Indexed: 06/07/2023]
Abstract
RATIONALE The processing of retinyl acetate, a vitamin and biomarker, at high temperatures causes significant decomposition of the compound and thus loss of its activity. The rate of mass loss can be conveniently studied by thermogravimetry (TG). However, this technique generally fails to reveal which compounds have evolved from the compound. In this work we propose a new hyphenation approach to continuously monitor the thermal decomposition of retinyl acetate and follow the evolution of specific volatile organic compounds (VOCs). METHODS Thermal degradation of retinyl acetate was followed by TG coupled to a direct injection mass spectrometer based on proton transfer reaction mass spectrometry (PTR-MS) to follow continuously the thermal decomposition of retinyl acetate. The results were also compared with those obtained by a second evolved gas analysis system based on the coupling of TG with FTIR. RESULTS The TG results showed two main mass losses, at 180°C and 350°C. When the PTR-MS instrument was connected to the outlet of the TG instrument, specific fragment ions (m/z 43, 61, 75, 85 and 97) showed characteristic evolution profiles. The first mass loss was mainly associated with the release of acetic acid (m/z 43 and 61), whereas the second mass loss was connected with the degradation of the molecule backbone (m/z 43, 61, 75, 85 and 97). These results were substantially correlated with those achieved by TG coupled with FTIR, although PTR-MS showed superior performance in terms of the qualitative identification of specific fragments and better sensitivity toward complex organic VOCs. CONCLUSIONS The proposed TG-PTR-MS technique shows a great potential for following in real time the thermal degradation of ingredients such as retinyl acetate and identifying compounds evolved at specific temperatures.
Collapse
Affiliation(s)
- Irene Peinado
- Faculty of Science and Technology, Free University of Bolzano, Piazza Università 5, 39100, Bolzano, Italy
| | - Marco Mason
- Faculty of Science and Technology, Free University of Bolzano, Piazza Università 5, 39100, Bolzano, Italy
| | - Franco Biasioli
- Department of Food Quality and Nutrition, Research and Innovation Centre, Fondazione Edmund Mach (FEM), via E. Mach 1, 38010, San Michele all'Adige, TN, Italy
| | - Matteo Scampicchio
- Faculty of Science and Technology, Free University of Bolzano, Piazza Università 5, 39100, Bolzano, Italy
| |
Collapse
|
19
|
Rapid identification and desorption mechanisms of nitrogen-based explosives by ambient micro-fabricated glow discharge plasma desorption/ionization (MFGDP) mass spectrometry. Talanta 2017; 167:75-85. [DOI: 10.1016/j.talanta.2017.02.011] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Accepted: 02/04/2017] [Indexed: 01/22/2023]
|
20
|
González-Méndez R, Watts P, Olivenza-León D, Reich DF, Mullock SJ, Corlett CA, Cairns S, Hickey P, Brookes M, Mayhew CA. Enhancement of Compound Selectivity Using a Radio Frequency Ion-Funnel Proton Transfer Reaction Mass Spectrometer: Improved Specificity for Explosive Compounds. Anal Chem 2016; 88:10624-10630. [PMID: 27715015 DOI: 10.1021/acs.analchem.6b02982] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A key issue with any analytical system based on mass spectrometry with no initial separation of compounds is to have a high level of confidence in chemical assignment. This is particularly true for areas of security, such as airports, and recent terrorist attacks have highlighted the need for reliable analytical instrumentation. Proton transfer reaction mass spectrometry is a useful technology for these purposes because the chances of false positives are small owing to the use of a mass spectrometric analysis. However, the detection of an ion at a given m/z for an explosive does not guarantee that that explosive is present. There is still some ambiguity associated with any chemical assignment owing to the presence of isobaric compounds and, depending on mass resolution, ions with the same nominal m/z. In this article we describe how for the first time the use of a radio frequency ion-funnel (RFIF) in the reaction region (drift tube) of a proton transfer reaction-time-of-flight-mass spectrometer (PTR-ToF-MS) can be used to enhance specificity by manipulating the ion-molecule chemistry through collisional induced processes. Results for trinitrotoluene, dinitrotoluenes, and nitrotoluenes are presented to demonstrate the advantages of this new RFIF-PTR-ToF-MS for analytical chemical purposes.
Collapse
Affiliation(s)
- Ramón González-Méndez
- Molecular Physics Group, School of Physics and Astronomy, University of Birmingham , Edgbaston, Birmingham B15 2TT, U.K
| | - Peter Watts
- Molecular Physics Group, School of Physics and Astronomy, University of Birmingham , Edgbaston, Birmingham B15 2TT, U.K
| | - David Olivenza-León
- Molecular Physics Group, School of Physics and Astronomy, University of Birmingham , Edgbaston, Birmingham B15 2TT, U.K
| | - D Fraser Reich
- Kore Technology Ltd , Cambridgeshire Business Park, Ely, Cambridgeshire CB7 4EA, U.K
| | - Stephen J Mullock
- Kore Technology Ltd , Cambridgeshire Business Park, Ely, Cambridgeshire CB7 4EA, U.K
| | - Clive A Corlett
- Kore Technology Ltd , Cambridgeshire Business Park, Ely, Cambridgeshire CB7 4EA, U.K
| | - Stuart Cairns
- Defence Science and Technology Laboratory , Fort Halstead, Sevenoaks, Kent TN14 7BP, U.K
| | - Peter Hickey
- Defence Science and Technology Laboratory , Fort Halstead, Sevenoaks, Kent TN14 7BP, U.K
| | - Matthew Brookes
- Defence Science and Technology Laboratory , Porton Down, Salisbury, Wilshire SP4 0JQ, U.K
| | - Chris A Mayhew
- Molecular Physics Group, School of Physics and Astronomy, University of Birmingham , Edgbaston, Birmingham B15 2TT, U.K.,Institut für Atemgasanalytik, Leopold-Franzens-Universitaet Innsbruck , Innsbruck 6020, Austria
| |
Collapse
|
21
|
Chen W, Hou K, Hua L, Li H. Dopant-assisted reactive low temperature plasma probe for sensitive and specific detection of explosives. Analyst 2015; 140:6025-30. [PMID: 26191543 DOI: 10.1039/c5an00816f] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
A dopant-assisted reactive low temperature plasma (DARLTP) probe was developed for sensitive and specific detection of explosives by a miniature rectilinear ion trap mass spectrometer. The DARLTP probe was fabricated using a T-shaped quartz tube. The dopant gas was introduced into the plasma stream through a side-tube. Using CH2Cl2 doped wet air as the dopant gas, the detection sensitivities were improved about 4-fold (RDX), 4-fold (PETN), and 3-fold (tetryl) compared with those obtained using the conventional LTP. Furthermore, the formation of [M + (35)Cl](-) and [M + (37)Cl](-) for these explosives enhanced the specificity for their identification. Additionally, the quantities of fragment ions of tetryl and adduct ions such as [RDX + NO2](-) and [PETN + NO2](-) were dramatically reduced, which simplified the mass spectra and avoided the overlap of mass peaks for different explosives. The sensitivity improvement may be attributed to the increased intensity of reactant ion [HNO3 + NO3](-), which was enhanced 4-fold after the introduction of dopant gas. The limits of detection (LODs) for RDX, tetryl, and PETN were down to 3, 6, and 10 pg, respectively. Finally, an explosive mixture was successfully analyzed, demonstrating the potential of the DARLTP probe for qualitative and quantitative analysis of complicated explosives.
Collapse
Affiliation(s)
- Wendong Chen
- Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
| | | | | | | |
Collapse
|
22
|
Lin L, Rong M, Lu S, Song X, Zhong Y, Yan J, Wang Y, Chen X. A facile synthesis of highly luminescent nitrogen-doped graphene quantum dots for the detection of 2,4,6-trinitrophenol in aqueous solution. NANOSCALE 2015; 7:1872-8. [PMID: 25522688 DOI: 10.1039/c4nr06365a] [Citation(s) in RCA: 141] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
A facile bottom-up method for the synthesis of highly fluorescent nitrogen-doped graphene quantum dots (N-GQDs) has been developed via a one-step pyrolysis of citric acid and tris(hydroxymethyl)aminomethane. The obtained N-GQDs emitted strong blue fluorescence under 365 nm UV light excitation with a high quantum yield of 59.2%. They displayed excitation-independent behavior, high resistance to photobleaching and high ionic strength. In addition to the good linear relationship between the fluorescence intensity of the N-GQDs and pH in the range 2-7, the fluorescence intensity of the N-GQDs could be greatly quenched by the addition of a small amount of 2,4,6-trinitrophenol (TNP). A sensitive approach has been developed for the detection of TNP with a detection limit of 0.30 μM, and a linearity ranging from 1 to 60 μM TNP could be obtained. The approach was highly selective and suitable for TNP analysis in natural water samples.
Collapse
Affiliation(s)
- Liping Lin
- Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China.
| | | | | | | | | | | | | | | |
Collapse
|