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Liu TZ, Cui XL, Sun WL, Miao JY, Zhao BX, Lin ZM. Two simple but effective turn-on benzothiazole-based fluorescent probes for detecting hydrogen sulfide in real water samples and HeLa cells. Anal Chim Acta 2022; 1189:339225. [PMID: 34815049 DOI: 10.1016/j.aca.2021.339225] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 10/13/2021] [Accepted: 10/28/2021] [Indexed: 11/01/2022]
Abstract
Two simple turn-on fluorescent probes, containing a benzothiazole and the 2,4-dinitrobenzenesulfonyl group, were designed for detecting H2S. Two probes exhibited good selectivity and high sensitivity, which were applied to detect the H2S in real water samples. Probe P2 with a positive charge had better solubility than probe P1 in water; therefore, probe P2 was successfully applied to detect both the endogenous and exogenous H2S in lysosomes of living HeLa cells.
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Affiliation(s)
- Tian-Zhen Liu
- Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, PR China
| | - Xiao-Ling Cui
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Science, Shandong University, Qingdao, 266237, PR China
| | - Wen-Long Sun
- Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, PR China
| | - Jun-Ying Miao
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Science, Shandong University, Qingdao, 266237, PR China
| | - Bao-Xiang Zhao
- Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, PR China.
| | - Zhao-Min Lin
- Institute of Medical Science, The Second Hospital of Shandong University, Jinan, 250033, PR China.
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2
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Hu J, Chen H, Jiang X, Hou X. Photochemical Vapor Generation of Halides in Organic-Acid-Free Media: Mechanism Study and Analysis of Water Samples. Anal Chem 2021; 93:11151-11158. [PMID: 34346211 DOI: 10.1021/acs.analchem.1c01639] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Herein, we report a discovery that photochemical vapor generation (PCVG) of halides (bromide, chloride, and fluoride) can be realized in organic-acid-free media, with figures of merit comparable to those in classical scenarios employing acetic acid. Metal acetates, copper salts, and mixtures of different acetates and copper salts were evaluated for their performance in facilitating PCVG of halides; the formation of copper acetate complexes turned out to play a crucial role. Methyl halides (CH3X, X = Br, Cl, F) were identified by gas chromatography-mass spectrometry (GC-MS) as principal volatile compounds. Several important intermediate species, including cuprous ions (Cu+), methyl (•CH3), and hydroxyl (•OH) free radicals, were confirmed using cuproine, 2,2,6,6-tetramethylpiperidin-1-oxyl (TEMPO), and coumarin as a chromogenic agent, radical tracer, and fluorescence probe based on UV-vis, GC-MS, and fluorescence spectroscopy, respectively. The ligand to metal charge transfer (LMCT) between acetate and copper and the charge transfer to solvent (CTTS) excitation of halides were considered to account for the generation of methyl halides in organic-acid-free media. The presence of 100 and 200 μg mL-1 of CuAc2, as well as sample delivery rates of 10.7 and 3.3 mL min-1, yielded limits of detection of 0.03 and 3 μg L-1 for Br- and Cl-, respectively, by inductively coupled plasma mass spectrometry (ICPMS). The method was applied to the analysis of bottled water and seawater, achieving spike recoveries between 92 and 101%.
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Affiliation(s)
- Jing Hu
- Analytical & Testing Center, Sichuan University, Chengdu 610064, Sichuan, China
| | - Hanjiao Chen
- Analytical & Testing Center, Sichuan University, Chengdu 610064, Sichuan, China
| | - Xiaoming Jiang
- Analytical & Testing Center, Sichuan University, Chengdu 610064, Sichuan, China
| | - Xiandeng Hou
- Analytical & Testing Center, Sichuan University, Chengdu 610064, Sichuan, China.,Key Laboratory of Green Chemistry & Technology of MOE at College of Chemistry, Sichuan University, Chengdu 610064, Sichuan, China
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3
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Sakate D, Iwazaki Y, Kon Y, Yokoyama T, Ohata M. Examination of the Mass Transfer of Additive Elements in Barium Titanate Ceramics during Sintering Process by Laser Ablation ICP-MS. ANAL SCI 2018; 34:739-742. [PMID: 29887565 DOI: 10.2116/analsci.18sbn04] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The mass transfer of additive elements during the sintering of barium titanate (BaTiO3) ceramic was examined by laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) in the present study. An analytical sample consisting of two pellets of BaTiO3 with different concentrations of additive elements of manganese (Mn) and holmium (Ho) as well as silicon (Si) as a sintering reagent was prepared and measured by LA-ICP-MS with small laser irradiated diameter of 10 μm to evaluate the distributions and concentrations of additive elements in order to examine their mass transfers. As results, enrichments of Mn and Si as an additive element and a sintering reagent, respectively, were observed on the adhesive surface between two BaTiO3 pellets, even though Ho did not show a similar phenomenon. The mass transfers of additive elements of Mn and Ho were also examined, and Mn seemed to show a larger mass transfer than that of Ho during the sintering process for BaTiO3 ceramics. The results obtained in this study shows the effectives of LA-ICP-MS for the future improvement of MLCCs.
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Affiliation(s)
| | | | - Yoshiaki Kon
- Mineral Resources Research Group, Research Institute for Geo-Resources and Environment, Geological Survey of Japan (GSJ), National Institute of Advanced Industrial Science and Technology (AIST)
| | - Takaomi Yokoyama
- Mineral Resources Research Group, Research Institute for Geo-Resources and Environment, Geological Survey of Japan (GSJ), National Institute of Advanced Industrial Science and Technology (AIST)
| | - Masaki Ohata
- Inorganic Standards Group, Research Institute for Material and Chemical Measurement, National Metrology Institute of Japan (NMIJ), National Institute of Advanced Industrial Science and Technology (AIST)
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4
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A regenerated “turn on” fluorescent probe for sulfide detection in live cells and read samples based on dihydroxyhemicyanine-Cu2+ dye. Anal Chim Acta 2018; 1010:69-75. [DOI: 10.1016/j.aca.2018.01.020] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Revised: 12/20/2017] [Accepted: 01/13/2018] [Indexed: 12/12/2022]
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5
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Burylin MY, Pupyshev AA. Development of electrothermal atomic absorption spectrometry in 2005–2016. JOURNAL OF ANALYTICAL CHEMISTRY 2017. [DOI: 10.1134/s1061934817090039] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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6
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Visible light photoelectrochemical sulfide sensor based the use of TiO2 nanotube arrays loaded with Cu2O. Mikrochim Acta 2017. [DOI: 10.1007/s00604-017-2441-7] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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7
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Detection and Analytical Capabilities for Trace Level of Carbon in High-Purity Metals by Laser-Induced Breakdown Spectroscopy with a Frequency Quintupled 213 nm Nd:YAG Laser. J CHEM-NY 2017. [DOI: 10.1155/2017/1095183] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The laser-induced breakdown spectroscopy (LIBS) with a frequency quintupled 213 nm Nd:YAG laser was examined to the analysis of trace level of carbon (C) in high-purity metals and its detection and analytical capabilities were evaluated. Though C signal in a wavelength of 247.9 nm, which showed the highest sensitivity of C, could be obtained from Cd, Ti, and Zn ca. 7000 mg kg−1 C in Fe could not be detected due to the interferences from a lot of Fe spectra. Alternative C signal in a wavelength of 193.1 nm could not be also detected from Fe due to the insufficient laser output energy of the frequency quintupled 213 nm Nd:YAG laser. The depth analysis of C by LIBS was also demonstrated and the C in Cd and Zn was found to be contaminated in only surface area whereas the C in Ti was distributed in bulk. From these results, the frequency quintupled 213 nm Nd:YAG laser, which was adopted widely as a commercial laser ablation (LA) system coupled with inductively coupled plasma mass spectrometry (ICPMS) for trace element analysis in solid materials, could be used for C analysis to achieve simultaneous measurements for both C and trace elements in metals by LIBS and LA-ICPMS, respectively.
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Chu-mong K, Thammakhet C, Thavarungkul P, Kanatharana P, Buranachai C. A FRET based aptasensor coupled with non-enzymatic signal amplification for mercury (II) ion detection. Talanta 2016; 155:305-13. [DOI: 10.1016/j.talanta.2016.05.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2016] [Revised: 04/30/2016] [Accepted: 05/02/2016] [Indexed: 12/30/2022]
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9
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Sensitive Naked Eye and Autofluorescence Detection of Cu2+ in Biological Fluids by Polyethyleneimine Microspheres. J Fluoresc 2016; 26:1763-72. [DOI: 10.1007/s10895-016-1868-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Accepted: 06/14/2016] [Indexed: 10/21/2022]
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10
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Tang L, Zheng Z, Bian Y. AN-(2-hydroxyethyl)piperazine dangled 2,5-diphenyl-1,3,4-oxadiazole-based fluorescent sensor for selective relay recognition of Cu2+and sulfide in water. LUMINESCENCE 2016; 31:1456-1460. [DOI: 10.1002/bio.3128] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Revised: 01/20/2016] [Accepted: 02/26/2016] [Indexed: 11/07/2022]
Affiliation(s)
- Lijun Tang
- Department of Chemistry; Bohai University; Jinzhou 121013 China
| | - Zhuxuan Zheng
- Department of Chemistry; Bohai University; Jinzhou 121013 China
| | - Yanjiang Bian
- Department of Chemistry; Bohai University; Jinzhou 121013 China
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11
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Pyridoxal Based Fluorescent Chemosensor for Detection of Copper(II) in Solution With Moderate Selectivity and Live Cell Imaging. J Fluoresc 2015; 25:1437-47. [DOI: 10.1007/s10895-015-1634-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Accepted: 07/26/2015] [Indexed: 10/23/2022]
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12
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Cao F, Yuan Z, Liu J, Ling J. Europium(iii) β-diketone complex as portable luminescent chemosensor for naked eye Cu2+ detection and recyclable on–off–on vapor response. RSC Adv 2015. [DOI: 10.1039/c5ra19710d] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
A novel Eu3+ complex coordinated by polymers with β-diketone pendant groups (Eu3+–PDKMA) has been synthesized for Cu2+ cation and acid–base vapor detections.
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Affiliation(s)
- Fangyi Cao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- 310027 Hangzhou
- China
| | - Zheng Yuan
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- 310027 Hangzhou
- China
| | - Junhua Liu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- 310027 Hangzhou
- China
| | - Jun Ling
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- 310027 Hangzhou
- China
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13
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Zhong Y, Zhu J, Wang Q, He Y, Ge Y, Song C. Copper nanoclusters coated with bovine serum albumin as a regenerable fluorescent probe for copper(II) ion. Mikrochim Acta 2014. [DOI: 10.1007/s00604-014-1407-2] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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14
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Liu J, Zuo W, Zhang W, Liu J, Wang Z, Yang Z, Wang B. Europium(III) complex-functionalized magnetic nanoparticle as a chemosensor for ultrasensitive detection and removal of copper(II) from aqueous solution. NANOSCALE 2014; 6:11473-11478. [PMID: 25155471 DOI: 10.1039/c4nr03454f] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Ultrasensitive, accurate detection and separation of heavy metal ions is very important in environmental monitoring and biological detection. In this paper, a highly sensitive and specific detection method for Cu(2+) based on the fluorescence quenching of a europium(III) hybrid magnetic nanoprobe is presented. This nanoprobe can detect Cu(2+) over a wide pH range (5.0-10.0) with a detection limit as low as 0.1 nM and it can be used for detecting Cu(2+) in living cells. After the magnetic separation, the Cu(2+) concentration decreased to 1.18 ppm, which is less than the US EPA drinking water standard (1.3 ppm), and more than 70% Cu(2+) could be removed when the amount of nanocomposite 1 reached 1 mg.
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Affiliation(s)
- Jing Liu
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province and State Key Laboratory of Applied Organic Chemistry Lanzhou University Gansu, Lanzhou University, Lanzhou 730000, P.R. China.
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15
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Dynamics of GDOES-induced surface roughening in metal interfaces. Anal Bioanal Chem 2014; 406:7483-95. [PMID: 24817353 DOI: 10.1007/s00216-014-7827-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2014] [Revised: 04/03/2014] [Accepted: 04/08/2014] [Indexed: 10/25/2022]
Abstract
The roughness induced during glow-discharge optical-emission spectroscopy (GDOES) measurements has been reported to cause a loss of resolution during GDOES depth-profiling analysis. In this paper, we undertake for the first time a study of the dynamics of the surface morphology of chromium and titanium thin films (designed in mono and multilayer structures) under the impinging of GDOES incoming ions. We performed this study under the theoretical framework of the dynamic scaling theory, by analysing surface morphology changes, as measured ex-situ by AFM, with irradiation time. For single metal layers it was found that, after an initial surface smoothening, the surface undergoes a rapid steep roughening for both systems, with quite similar quantitative dynamics. Once this roughening ends a second temporal scaling regime arises, operating for long length scales with dynamics depending on the sputtering rate of the material. For the chromium layer, with a very high sputtering rate of 5.5 μm min(-1), this regime is consistent with the KPZ model, whereas for the titanium layer an EW scaling regime is indicated. These different scaling regimes are consistent with the development of larger surface slopes for the Cr system. In the multilayer systems, the initial roughness induced on the top Cr layer by GDOES has similar dynamics to that for single-layer Cr. However, a clear decrease in the roughness was observed once the underlying Ti layer, with a lower sputtering rate, was reached. This decrease in the induced roughness is maintained while the Ti layer is eroded. Therefore, choice of appropriate material (i.e. sputtering yield values) combinations and of their depth of location can enable tuning of GDOES-induced roughness and achieve substantial control over the depth profiling process.
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16
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Wang H, Mu L, Jin L, She G, Xu H, Shi W. Highly portable fluorescent turn-on sensor for sulfide anions based on silicon nanowires. RSC Adv 2014. [DOI: 10.1039/c4ra10963e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A portable fluorescent sensor for S2− based on SiNW arrays was realized and used to monitor S2− in running water.
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Affiliation(s)
- Huimin Wang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing 100190, China
- University of Chinese Academy of Sciences
| | - Lixuan Mu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing 100190, China
| | - Liangliang Jin
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing 100190, China
- University of Chinese Academy of Sciences
| | - Guangwei She
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing 100190, China
| | - Haitao Xu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing 100190, China
| | - Wensheng Shi
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing 100190, China
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17
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A ratiometric fluorescent probe for sensitive, selective and reversible detection of copper (II) based on riboflavin-stabilized gold nanoclusters. Talanta 2013; 117:399-404. [DOI: 10.1016/j.talanta.2013.09.034] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Revised: 09/15/2013] [Accepted: 09/19/2013] [Indexed: 11/20/2022]
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18
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Zheng F, Wen M, Zeng F, Wu S. A water-soluble, low-cytotoxic and sensitive fluorescent probe based on poly(ethylene glycol) for detecting sulfide anion in aqueous media and imaging inside live cells. POLYMER 2013. [DOI: 10.1016/j.polymer.2013.08.021] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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19
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Surface morphological and elemental imaging by low power atmospheric pulsed spark discharge optical emission spectrometry. Microchem J 2013. [DOI: 10.1016/j.microc.2013.03.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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20
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Labutin TA, Zaytsev SM, Popov AM. Automatic Identification of Emission Lines in Laser-Induced Plasma by Correlation of Model and Experimental Spectra. Anal Chem 2013; 85:1985-90. [DOI: 10.1021/ac303270q] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Timur A. Labutin
- Lomonosov Moscow State University, Chemistry Department, Leninskie gory, 1 bld.3, Moscow, Russia,
119991
| | - Sergey M. Zaytsev
- Lomonosov Moscow State University, Chemistry Department, Leninskie gory, 1 bld.3, Moscow, Russia,
119991
| | - Andrey M. Popov
- Lomonosov Moscow State University, Chemistry Department, Leninskie gory, 1 bld.3, Moscow, Russia,
119991
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21
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Li M, Liang Q, Zheng M, Fang C, Peng S, Zhao M. An efficient ruthenium tris(bipyridine)-based luminescent chemosensor for recognition of Cu(ii) and sulfide anion in water. Dalton Trans 2013; 42:13509-15. [DOI: 10.1039/c3dt51047f] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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22
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Wu X, Li H, Kan Y, Yin B. A regeneratable and highly selective fluorescent probe for sulfide detection in aqueous solution. Dalton Trans 2013; 42:16302-10. [DOI: 10.1039/c3dt51953h] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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23
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Affiliation(s)
- Nicolas H. Bings
- Institute of Inorganic
and Analytical Chemistry, Johannes Gutenberg-University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Annemie Bogaerts
- Department of Chemistry, University of Antwerp, Universiteitsplein 1, B-2610
Wilrijk-Antwerp, Belgium
| | - José A. C. Broekaert
- Institute of Inorganic and Applied Chemistry, University of Hamburg, Martin-Luther-King-Platz 6, 20146 Hamburg, Germany
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Thomas TG, Sreenath K, Gopidas KR. Colorimetric detection of copper ions in sub-micromolar concentrations using a triarylamine-linked resin bead. Analyst 2012; 137:5358-62. [PMID: 23013916 DOI: 10.1039/c2an35724k] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The triarylamine derivative ETPA reacts with Cu(2+) to give deeply colored, stable radical cations in acetonitrile solution. ETPA was immobilized on to a tentagel resin bead which was then used for the fabrication of a simple device capable of the colorimetric detection of submicromolar concentrations of Cu(2+) ions in water. The naked eye detection limit reported here for Cu(2+) is one of the lowest ever reported for small molecule sensors.
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Affiliation(s)
- Tony George Thomas
- Photosciences and Photonics, Chemical Sciences and Technology Division, National Institute for Interdisciplinary Science and Technology, Council of Scientific and Industrial Research, Trivandrum 695 019, India
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25
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Lin Z, Luo F, Dong T, Zheng L, Wang Y, Chi Y, Chen G. Recyclable fluorescent gold nanocluster membrane for visual sensing of copper(ii) ion in aqueous solution. Analyst 2012; 137:2394-9. [DOI: 10.1039/c2an35068h] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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26
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Cao X, Lin W, He L. A Near-Infrared Fluorescence Turn-On Sensor for Sulfide Anions. Org Lett 2011; 13:4716-9. [DOI: 10.1021/ol201932c] [Citation(s) in RCA: 179] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Xiaowei Cao
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, P. R. China
| | - Weiying Lin
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, P. R. China
| | - Longwei He
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, P. R. China
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27
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Korolov I, Bánó G, Donkó Z, Derzsi A, Hartmann P. Experimental study of the asymmetric charge transfer reaction between Ar+ ions and Fe atoms. J Chem Phys 2011; 134:064308. [PMID: 21322681 DOI: 10.1063/1.3548657] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
We investigate the Ar(+)-Fe asymmetric charge transfer (ACT) reaction using a combination of plasma diagnostics methods and a kinetic model of the afterglow plasma, which allow monitoring of the temporal evolution of the densities of different species. The iron vapor is created inside a discharge cell by cathode sputtering; its density is measured by atomic absorption spectroscopy. The rate coefficient of the reaction is evaluated from the emission intensity decay of Fe(+)∗ lines pumped by the ACT process in the He-Ar-Fe and Ar-Fe afterglow plasmas. The measurements yield a rate coefficient k = 7.6( ± 3.0) × 10(-9) cm(3) s(-1) at T = 300 K.
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Affiliation(s)
- I Korolov
- Research Institute for Solid State Physics and Optics of the Hungarian Academy of Sciences, H-1525 Budapest, POB 49, Hungary.
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28
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Yaroshchyk P, Death DL, Spencer SJ. Quantitative measurements of loss on ignition in iron ore using laser-induced breakdown spectroscopy and partial least squares regression analysis. APPLIED SPECTROSCOPY 2010; 64:1335-1341. [PMID: 21144150 DOI: 10.1366/000370210793561600] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Laser-induced breakdown spectroscopy (LIBS) and partial least squares regression (PLSR) have been applied to perform quantitative measurements of a multiple-species parameter known as loss on ignition (LOI), in a combined set of run-of-mine (ROM) iron ore samples originating from five different iron ore deposits. Global calibration models based on 65 samples and their duplicates from all the deposits with LOI ranging from 0.5 to 10 wt% are shown to be successful for prediction of LOI content in pressed pellets as well as bulk ore samples. A global independent dataset comprising a further 60 samples was used to validate the model resulting in the best validation R(2) of 0.87 and root mean square error of prediction (RMSEP) of 1.1 wt% for bulk samples. A validation R(2) of 0.90 and an RMSEP of 1.0 wt% were demonstrated for pressed pellets. Data preprocessing is shown to improve the quality of the analysis. Spectra normalization options, automatic outlier removal and automatic continuum background correction, which were used to improve the performance of the PLSR method, are discussed in detail.
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Affiliation(s)
- Pavel Yaroshchyk
- CSIRO Process Science and Engineering, Lucas Heights Science and Technology Centre, Locked Bag 2005, Kirrawee NSW 2232 Australia.
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29
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Spectroscopic and analytical characteristics of an inductively coupled argon plasma combined with hydride generation with or without simultaneous introduction of the sample aerosol for optical emission spectrometry. Anal Bioanal Chem 2010; 398:537-45. [DOI: 10.1007/s00216-010-3902-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2010] [Revised: 06/04/2010] [Accepted: 06/06/2010] [Indexed: 10/19/2022]
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30
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Affiliation(s)
- Nicolas H. Bings
- Inorganic and Analytical Chemistry, Johannes Gutenberg-University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany, Department of Chemistry, University of Antwerp, Universiteitsplein 1, B-2610 Wilrijk-Antwerp, Belgium, and Inorganic and Applied Chemistry, University of Hamburg, Martin-Luther-King-Platz 6, 20146 Hamburg, Germany
| | - Annemie Bogaerts
- Inorganic and Analytical Chemistry, Johannes Gutenberg-University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany, Department of Chemistry, University of Antwerp, Universiteitsplein 1, B-2610 Wilrijk-Antwerp, Belgium, and Inorganic and Applied Chemistry, University of Hamburg, Martin-Luther-King-Platz 6, 20146 Hamburg, Germany
| | - José A. C. Broekaert
- Inorganic and Analytical Chemistry, Johannes Gutenberg-University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany, Department of Chemistry, University of Antwerp, Universiteitsplein 1, B-2610 Wilrijk-Antwerp, Belgium, and Inorganic and Applied Chemistry, University of Hamburg, Martin-Luther-King-Platz 6, 20146 Hamburg, Germany
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31
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Sukhan VV, Trokhimenko OM, Zaitsev VN. Direct and indirect atomic absorption methods of determining various forms of iodine in waters and in aqueous solutions. J WATER CHEM TECHNO+ 2010. [DOI: 10.3103/s1063455x10020037] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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32
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Determination of cadmium by an improved double chamber electrothermal vaporization inductively coupled plasma atomic emission spectrometry. Microchem J 2010. [DOI: 10.1016/j.microc.2009.10.012] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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33
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Biba F, Groessl M, Egger A, Jakupec MA, Keppler BK. A novel cytotoxic cerium complex: aquatrichloridobis(1,10-phenanthroline)cerium(III) (KP776). Synthesis, characterization, behavior in H2O, binding towards biomolecules, and antiproliferative activity. Chem Biodivers 2010; 6:2153-65. [PMID: 20020447 DOI: 10.1002/cbdv.200900011] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The lanthanide complex aquatrichloridobis(1,10-phenanthroline)cerium(III) [Ce(phen)2(H2O)Cl3] (KP776) was fully characterized by elemental analysis, IR-, and 1H- and 13C-NMR spectroscopy, as well as TG/DTA measurements, and its behavior in H2O, important for the application as a chemotherapeutic, was studied. In addition, the binding of KP776 to nucleotides and single serum proteins was investigated by capillary electrophoresis, whereas binding to proteins in human plasma was observed by ICP-MS. The compound shows promising anticancer properties in vitro: proliferation of human cancer cell lines is strongly inhibited with IC(50) values in the very low micromolar range.
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Affiliation(s)
- Florian Biba
- University of Vienna, Institute of Inorganic Chemistry, Waehringer Strasse 42, A-1090 Vienna
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Trigoulet N, Hashimoto T, Molchan IS, Skeldon P, Thompson GE, Tempez A, Chapon P. Surface topography effects on glow discharge depth profiling analysis. SURF INTERFACE ANAL 2010. [DOI: 10.1002/sia.3165] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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35
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Cha NR, Lee JK, Lee YR, Jeong HJ, Kim HK, Lee SY. Determination of Iron, Copper, Zinc, Lead, Nickel and Cadmium in Cosmetic Matrices by Flame Atomic Absorption Spectroscopy. ANAL LETT 2010. [DOI: 10.1080/00032710903325781] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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36
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Escobar Galindo R, Gago R, Duday D, Palacio C. Towards nanometric resolution in multilayer depth profiling: a comparative study of RBS, SIMS, XPS and GDOES. Anal Bioanal Chem 2010; 396:2725-40. [DOI: 10.1007/s00216-009-3339-y] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2009] [Revised: 11/19/2009] [Accepted: 11/22/2009] [Indexed: 11/30/2022]
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37
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Biba F, Groessl M, Egger A, Roller A, Hartinger CG, Keppler BK. New Insights into the Chemistry of the Antineoplastic Lanthanum Complex Tris(1,10-phenanthroline)tris(thiocyanato-κN)lanthanum(III) (KP772) and Its Interaction with Biomolecules. Eur J Inorg Chem 2009. [DOI: 10.1002/ejic.200900038] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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38
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Affiliation(s)
- Soledad Rubio
- Department of Analytical Chemistry, Facultad de Ciencias, Edificio Anexo Marie Curie, Campus de Rabanales, 14071 Córdoba, Spain
| | - Dolores Pérez-Bendito
- Department of Analytical Chemistry, Facultad de Ciencias, Edificio Anexo Marie Curie, Campus de Rabanales, 14071 Córdoba, Spain
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39
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Escobar Galindo R, Gago R, Albella J, Escobar Galindo R, Gago R, Lousa A. Comparative depth-profiling analysis of nanometer-metal multilayers by ion-probing techniques. Trends Analyt Chem 2009. [DOI: 10.1016/j.trac.2009.01.004] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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