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Lefi N, Kazachenko AS, Raja M, Issaoui N, Kazachenko AS. Molecular Structure, Spectral Analysis, Molecular Docking and Physicochemical Studies of 3-Bromo-2-hydroxypyridine Monomer and Dimer as Bromodomain Inhibitors. Molecules 2023; 28:molecules28062669. [PMID: 36985641 PMCID: PMC10054851 DOI: 10.3390/molecules28062669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 03/02/2023] [Accepted: 03/02/2023] [Indexed: 03/18/2023] Open
Abstract
In this paper, both methods (DFT and HF) were used in a theoretical investigation of 3-bromo-2-Hydroxypyridine (3-Br-2HyP) molecules where the molecular structures of the title compound have been optimized. Molecular electrostatic potential (MEP) was computed using the B3LYP/6-311++G(d,p) level of theory. The time-dependent density functional theory (TD-DFT) approach was used to simulate the HOMO (highest occupied molecular orbital) and LUMO (lowest unoccupied molecular orbital) on the one hand to achieve the frontier orbital gap and on the other hand to calculate the UV–visible spectrum of the compound in gas phase and for different solvents. In addition, electronic localization function and Fukui functions were carried out. Intermolecular interactions were discussed by the topological AIM (atoms in molecules) approach. The thermodynamic functions have been reported with the help of spectroscopic data using statistical methods revealing the correlations between these functions and temperature. To describe the non-covalent interactions, the reduced density gradient (RDG) analysis is performed. To study the biological activity of the compound of the molecule, molecular docking studies were executed on the active sites of BRD2 inhibitors and to explore the hydrogen bond interaction, minimum binding energies with targeted receptors such as PDB ID: 5IBN, 3U5K, 6CD5 were calculated.
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Affiliation(s)
- Nizar Lefi
- Department of Physics, College of Sciences and Arts in Uglat Asugour, Qassim University, Buraydah 52571, Saudi Arabia
- Laboratory of Quantum and Statistical Physics (LR18ES18), Faculty of Sciences, University of Monastir, Monastir 5079, Tunisia
| | - Aleksandr S. Kazachenko
- Institute of Chemistry and Chemical Technology, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50, Bld. 24, 660036 Krasnoyarsk, Russia
- Department of Organic and Analytical Chemistry, Siberian Federal University, pr. Svobodny 79, 660041 Krasnoyarsk, Russia
- Department of Biological Chemistry with Courses in Medical, Pharmaceutical and Toxicological Chemistry, Krasnoyarsk State Medical University, St. Partizan Zheleznyak, Bld. 1, 660022 Krasnoyarsk, Russia
- Correspondence: (A.S.K.); (N.I.); (A.S.K.)
| | - Murugesan Raja
- Department of Physics, Govt. Thirumagal Mills College, Gudiyatham, Vellore 632602, India
| | - Noureddine Issaoui
- Laboratory of Quantum and Statistical Physics (LR18ES18), Faculty of Sciences, University of Monastir, Monastir 5079, Tunisia
- Correspondence: (A.S.K.); (N.I.); (A.S.K.)
| | - Anna S. Kazachenko
- Department of Organic and Analytical Chemistry, Siberian Federal University, pr. Svobodny 79, 660041 Krasnoyarsk, Russia
- Correspondence: (A.S.K.); (N.I.); (A.S.K.)
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Comparison of Glyphosate Detection by Surface-Enhanced Raman Spectroscopy Using Gold and Silver Nanoparticles at Different Laser Excitations. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27185767. [PMID: 36144498 PMCID: PMC9502363 DOI: 10.3390/molecules27185767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Revised: 08/30/2022] [Accepted: 08/30/2022] [Indexed: 02/05/2023]
Abstract
Glyphosate is one of the most widely used pesticides in the world, but it has been shown to persist in the environment and therefore needs to be detected in food. In this work, the detection of glyphosate by surface-enhanced Raman scattering (SERS) using gold and silver nanoparticles and three different commonly used laser excitations (532, 632, and 785 nm wavelengths) of a Raman microscope complemented with a portable Raman spectrometer with 785 nm excitation is compared. The silver and gold nanosphere SERS substrates were prepared by chemical synthesis. In addition, colorimetric detection of glyphosate using cysteamine-modified gold and silver nanoparticles was also tested. The best results were obtained with Ag NPs at 532 nm excitation with a detection limit of 1 mM and with Au nanoparticles at 785 nm excitation with a detection limit of 100 µM. The SERS spectra of glyphosate with cysteamine-modified silver NPs improved the detection limits by two orders of magnitude for 532 nm excitation, i.e., up to 10 µM, and by one order of magnitude for 632 and 785 nm excitation wavelengths.
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Lin JF, Chang FC, Sheen JF. Determination of glyphosate, aminomethylphosphonic acid, and glufosinate in river water and sediments using microwave-assisted rapid derivatization and LC-MS/MS. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:46282-46292. [PMID: 35169944 DOI: 10.1007/s11356-022-19189-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 02/09/2022] [Indexed: 06/14/2023]
Abstract
Glyphosate (N-phosphonomethyl glycine) and glufosinate (ammonium dl-homoalanin- 4-methyl phosphinate) are nonselective, broad-spectrum, and highly polar herbicides that are wildly used for weed control in aquatic systems and vegetation control in non-crop areas. Aminomethylphosphonic acid (AMPA) is the major degradation product of glyphosate. To address the concerns to its environmental residue and the possible adverse effects, the analytical methods by using microwave-assisted derivatization were developed for determining glyphosate, AMPA, and glufosinate in river water and sediments. The methods applied the 9-fluorenylmethyloxycarbonyl chloride (FMOC-Cl) derivatization for the analytes. The microwave heating is first-time applied to reduce the FMOC-reaction time of glyphosate, AMPA, and glyphosate in the environmental samples to less than 2.5 min. The microwave-assisted methods were successfully validated for river water and sediment. The linear ranges of 7.8-2000.0 ng/L and 0.78-100.0 ng/g were achieved by using 10 mL of water and 2 g of sediments. Glyphosate was found in 30/32% and 25/32% of 32 water and 32 sediments at 27.1-1353.9 ng/L and 2.4-189.6 ng/g levels. AMPA was found in 30/32% and 30/32% of 32 water and 32 sediments at 60.2-1509.0 ng/L and 1.8-233.6 ng/g levels. Glyphosate was found in 10/32% of 32 water at 14.8-503.1 ng/L levels. No glufosinate residue was observed for 32 sediments. The residues of glyphosate and AMPA were wildly detected in the river waters and sediments near the agricultural regions, and glufosinate was less detected. This is the first study that reported herbicide levels in water and sediment from Taiwan rural areas using microwave-assisted rapid derivatization, useful information for environmental management.
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Affiliation(s)
- Jyun-Fong Lin
- Department of Biotechnology, National Formosa University, Yunlin, 632, Taiwan
| | - Fang-Chih Chang
- College of Bio-Resources and Agriculture, The Experimental Forest, National Taiwan University, Nan-Tou 557, Taipie, Taiwan
| | - Jenn-Feng Sheen
- Department of Biotechnology, National Formosa University, Yunlin, 632, Taiwan.
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4
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Ohara T, Yoshimoto T, Natori Y, Ishii A. A simple method for the determination of glyphosate, glufosinate and their metabolites in biological specimen by liquid chromatography/tandem mass spectrometry: an application for forensic toxicology. NAGOYA JOURNAL OF MEDICAL SCIENCE 2021; 83:567-587. [PMID: 34552290 PMCID: PMC8437997 DOI: 10.18999/nagjms.83.3.567] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 01/04/2021] [Indexed: 11/30/2022]
Abstract
Glyphosate (GLYP) and glufosinate (GLUF) are phosphorus-containing amino acid type herbicides that are used worldwide. With their rising consumptions, fatal intoxication cases due to these herbicides, whether accidental or intentional, cannot be ignored. Both compounds are difficult to detect, and their pretreatment for instrumental analysis are complicated and time-consuming. Our aim was to develop a simple and rapid quantification method for the two herbicides and their metabolites with liquid chromatography/tandem mass spectrometry (LC/MS/MS). We also compared 2-amino-4-phosphonobutyric acid and DL-2-amino-5-phosphonopentanoic acid as alternative internal standards (IS) to GLYP13C2 15N. Herbicide-containing specimens were highly diluted, evaporated to dryness, and derivatized with acetate/acetic anhydride and trimethyl orthoacetate for 30 min. at 120°C. Our optimized LC conditions successfully separated the target analytes, with acceptable linearities (R 2>0.98) and matrix effects (65%-140%). Accuracy and precision ranged from 80.2 % to 111 %, and from 1.3 % to 13 % at the higher concentration, respectively.The concentration of the herbicides and their metabolites were investigated in a postmortem case of suspected herbicide poisoning cases, in which we detected GLYP and its metabolites. Using one of the three ISs, the GLYP concentrations ranged from 3.1 to 3.5 mg/mL, and 3.3 to 4.5 mg/mL in plasma and urine, respectively; GLYP metabolite concentrations in plasma and urine were 18 to 20 μg/mL and 44 to 54 μg/mL. We thus succeeded in developing a rapid method without extraction for measuring GLYP and GLUF along with their metabolites, and demonstrated its practical applicability.
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Affiliation(s)
- Tomomi Ohara
- Department of Legal Medicine and Bioethics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Takashi Yoshimoto
- Department of Legal Medicine and Bioethics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yujin Natori
- Department of Legal Medicine and Bioethics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Akira Ishii
- Department of Legal Medicine and Bioethics, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Ma J, Feng G, Ying Y, Shao Y, She Y, Zheng L, Abd Ei-Aty AM, Wang J. Sensitive SERS assay for glyphosate based on the prevention of l-cysteine inhibition of a Au-Pt nanozyme. Analyst 2021; 146:956-963. [PMID: 33245078 DOI: 10.1039/d0an01919d] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, an indirect SERS sensing assay was developed for the determination of glyphosate (Gly) in tap water. The mechanism of detection was based on relieving the inhibitory effect of l-cysteine (l-cys) on a Au-Pt nanozyme by combining Gly with l-cys through divalent copper ions (Cu2+). In this method, a novel nano-chain-like Au-Ag composite with good repeatability was successfully fabricated to detect SERS signals of oxTMB without disturbing TMB Raman signals. Under optimal conditions, the SERS signal intensity of oxTMB (at 1605 cm-1) was proportional to the concentration of Gly. The results showed a good linear response over the concentration ranges of 10 μg L-1 to 1000 mg L-1. The limit of detection and limit of quantitation of Gly were found to be 5 μg L-1 and 10 μg L-1, respectively. In addition, good anti-interference ability against interfering cations and structural analogues deserves to be mentioned. This SERS assay can be used for detection of Gly in tap water that can meet the needs of practical detection.
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Affiliation(s)
- Jun Ma
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing 100081, P.R China.
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Garcia P, Pinètre J, Morel S, Jaubert M, Deruy X, Perot I, Delcourt V, Loup B, Popot M, Bailly‐Chouriberry L. An innovative derivatization‐free IC‐MS/MS method for the detection of bisphosphonates in horse plasma. Drug Test Anal 2020; 12:1452-1461. [DOI: 10.1002/dta.2892] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 06/25/2020] [Accepted: 06/29/2020] [Indexed: 11/07/2022]
Affiliation(s)
- Patrice Garcia
- GIE LCH, Laboratoire des Courses Hippiques Verrières le Buisson France
| | - Justine Pinètre
- GIE LCH, Laboratoire des Courses Hippiques Verrières le Buisson France
| | - Sylvain Morel
- Thermo Fisher Scientific, Villebon sur Yvette France
| | - Murielle Jaubert
- GIE LCH, Laboratoire des Courses Hippiques Verrières le Buisson France
| | - Xavier Deruy
- Thermo Fisher Scientific, Villebon sur Yvette France
| | - Isabelle Perot
- GIE LCH, Laboratoire des Courses Hippiques Verrières le Buisson France
| | - Vivian Delcourt
- GIE LCH, Laboratoire des Courses Hippiques Verrières le Buisson France
| | - Benoit Loup
- GIE LCH, Laboratoire des Courses Hippiques Verrières le Buisson France
| | - Marie‐Agnès Popot
- GIE LCH, Laboratoire des Courses Hippiques Verrières le Buisson France
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Abstract
The reactions of (N-(PhosphonoMethyl)Glycine) PMG with H2O2 in homogenous systems were investigated using 31P NMR (Nuclear Magnetic Resonance). These reactions were carried out in two reaction modes: without UV radiation and under UV radiation. The reactions of PMG with H2O2 without UV radiation were carried out in two modes: the degradations of PMG (0.1 mmol) by means of 5–10 molar excess of hydrogen dioxide (PMG-H2O2 = 1:5 and 1:10) and the degradation of PMG (0.1 mmol) in homogenous Fenton reactions (PMG-H2O2-Fe2+ = 1:10:0.05 and 1:10:0.1). All reactions were carried out at ambient temperature, at pH 3.5, for 48 h. The reactions of PMG (in Roundup herbicide composition, 12 mmol) with H2O2 under UV radiation (254 nm) were carried out using 5 × molar excess of H2O2 (60 mmol), in the pH range of 2 ≤ pH ≤ 12, for 6 h. In this mode of PMG oxidation, the splitting of C-P was observed in the ratios dependent on the applied pH of the reaction mixture.
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Żymańczyk-Duda E, Dunal N, Brzezińska-Rodak M, Osiewała A, Olszewski TK, Klimek-Ochab M, Serafin-Lewańczuk M. First biological conversion of chiral heterophosphonate derivative - Scaling and paths of conversion discussion. Bioorg Chem 2019; 93:102751. [PMID: 30709702 DOI: 10.1016/j.bioorg.2019.01.047] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 01/21/2019] [Accepted: 01/24/2019] [Indexed: 01/09/2023]
Abstract
Presented work describes the first approach for the biocatalytic resolution of racemic mixtures of heterophosphonate derivative. Penicillium funiculosum and Rhodotorula mucilaginosa were successfully applied for the biological conversion of racemic mixture of 1-amino-1-(3'-pyridyl)methylphosphonic acid 3. Both microorganisms carried out the kinetically driven process leading to conversion of one from the substrate enantiomers, leaving the second one unreacted. Application of R. mucilaginosa allowed obtaining pure enantiomer of the substrate (yield 100%, e.e 100% - unreacted isomer) after 24 h of biotransformation of 3 in the laboratory scale process (Method E), applying biocatalyst pre-treatment step - 24 h of starvation. In case of other biocatalyst, application of whole cells of P. funiculosum in laboratory scale process, also resulted in conversion of the racemic mixture of substrate 3via oxidative deamination into ketone derivative, which was then bioreduced (second step of the process) into 1-hydroxy-1-(3'-pyridyl)methylphosphonic acid 4. This time two products were isolated: unreacted substrate and hydroxy compound 4. Conversion degree ranged from 30% (standard procedure, method A) to even 70% (with extra addition of sodium pyruvate - method B2). However, in this case, bioconversion was not enantioselective - products: amino- and hydroxyderivative were obtained as racemic mixtures. Both biocatalysts were also tested towards the scaling so other biocatalytic procedures were introduced - with immobilized fungal mycelium. In case of Rhodotorula mucilaginosa this approach failed (data not shown) but Penicillium funiculosum turned out to be active and also selective. Thus, application of this biocatalyst in the half-preparative scale, continuous-flow bioprocess (Method C2) resulted in the obtaining of pure S-3 (100% e.e.) isomer with the 100% of conversion degree, without any side products. Recorded NMR spectra allowed confirming the reaction progress and its selectivity and also postulating possible mechanism of conversion.
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Affiliation(s)
- Ewa Żymańczyk-Duda
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland.
| | - Natalia Dunal
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
| | - Małgorzata Brzezińska-Rodak
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
| | - Angelika Osiewała
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
| | - Tomasz K Olszewski
- Department of Organic Chemistry, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
| | - Magdalena Klimek-Ochab
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
| | - Monika Serafin-Lewańczuk
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
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9
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A rapid screening color test for glyphosate using dabsyl derivatization. Forensic Toxicol 2018. [DOI: 10.1007/s11419-018-00460-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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10
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Hellal A, Rachida D, Zaout S, Elkolli M, Chafaa S, Touafri L, Chafai N, Mehri M, Benbougerra K. Structural, electronic, vibrational, optical and thermodynamic properties of 3-Oxo-3- p -tolylpropylphosphonic acid and 4-Oxo-4-p-tolyl-butyric acid: Density functional theory study. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.06.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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11
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Kmiecik N, Majewska P, Kozyra K, Żymańczyk-Duda E. Bioconversion of aminophosphonates to hydroxyphosphonatesviatwo step redox reactions employing fungi. PHOSPHORUS SULFUR 2017. [DOI: 10.1080/10426507.2017.1395437] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Natalia Kmiecik
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, Wrocław, Poland
| | - Paulina Majewska
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, Wrocław, Poland
| | - Kinga Kozyra
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, Wrocław, Poland
| | - Ewa Żymańczyk-Duda
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, Wrocław, Poland
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Kmiecik N, Żymańczyk-Duda E. Enantio convergent biotransformation of O,O-dimethyl-4-oxoazetidin-2-ylphosphonate using fungal cells of Penicillium minioluteum and purified enzymes. Bioorg Chem 2017; 71:81-85. [PMID: 28143659 DOI: 10.1016/j.bioorg.2017.01.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Revised: 01/06/2017] [Accepted: 01/20/2017] [Indexed: 11/25/2022]
Abstract
This report presents the bioconversion of O,O-dimethyl-4-oxoazetidin-2-ylphosphonate 1 performed in two ways: with the enzymatic system of P. minioluteum and with the application of purified enzymes: penicillinase and two proteases of different origin. Recorded NMR spectra allowed confirming the reaction progress and also postulating possible mechanism of conversion. The path of bioconversion was defined as enantio convergent process for both modes of applied biocatalysts. This means that kinetically driven resolution of racemic mixture of the substrate leads to the one enantiomer of the product. The bioconversion started from ester bond hydrolysis (equally in both enantiomers) with the conversion degree from 30% (whole-cell) to 35% (isolated enzymes) and with the production of optically pure monoester (compound 2; 100% of e.e). For whole-cell bioprocess it was the initiative step for the enantioselective amide bond hydrolysis, what resulted in synthesis of desired product 3-amino-3-phosphonopropanoic acid 4. However, the most effective enzymatic hydrolysis of ester bond performed with penicillinase from Enterobacter cloacae led only to the monoester product 2.
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Affiliation(s)
- Natalia Kmiecik
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland.
| | - Ewa Żymańczyk-Duda
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
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13
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Drabowicz J, Jordan F, Kudzin MH, Kudzin ZH, Stevens CV, Urbaniak P. Reactivity of aminophosphonic acids. Oxidative dephosphonylation of 1-aminoalkylphosphonic acids by aqueous halogens. Dalton Trans 2016; 45:2308-17. [PMID: 26631424 DOI: 10.1039/c5dt03083h] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The reactions of 1-aminoalkylphosphonic acids with bromine-water, chlorine-water and iodine-water were investigated. The formation of phosphoric(v) acid, as a result of a halogen-promoted cleavage of the Cα-P bond, accompanied by nitrogen release, was observed. The dephosphonylation of 1-aminoalkylphosphonic acids was found to occur quantitatively. In the reactions of 1-aminoalkylphosphonic acids with other halogen-water reagents investigated by (31)P NMR, scission of the Cα-P bond was also observed, the reaction rates being comparable for bromine and chlorine, but much slower for iodine.
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Affiliation(s)
- Józef Drabowicz
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, 120a Sienkiewicza, Lodz 90-363, Poland.
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14
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Wang L, Bi Y, Gao J, Li Y, Ding H, Ding L. Carbon dots based turn-on fluorescent probes for the sensitive determination of glyphosate in environmental water samples. RSC Adv 2016. [DOI: 10.1039/c6ra10115a] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Schematic illustration of Cu2+ and glyphosate detection using the CDs.
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Affiliation(s)
- Long Wang
- College of Chemistry
- Jilin University
- Changchun 130012
- PR China
| | - Yidan Bi
- College of Chemistry
- Jilin University
- Changchun 130012
- PR China
| | - Jia Gao
- College of Chemistry
- Jilin University
- Changchun 130012
- PR China
| | - Yijia Li
- College of Chemistry
- Jilin University
- Changchun 130012
- PR China
| | - Hong Ding
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry
- College of Chemistry
- Jilin University
- Changchun 130012
- PR China
| | - Lan Ding
- College of Chemistry
- Jilin University
- Changchun 130012
- PR China
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15
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The role of derivatization techniques in the analysis of glyphosate and aminomethyl-phosphonic acid by chromatography. Microchem J 2015. [DOI: 10.1016/j.microc.2015.02.007] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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16
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Solid-phase extraction of phosphorous-containing amino acid herbicides from biological specimens with a zirconia-coated silica cartridge. J Chromatogr B Analyt Technol Biomed Life Sci 2014; 969:69-76. [DOI: 10.1016/j.jchromb.2014.08.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2014] [Revised: 07/30/2014] [Accepted: 08/03/2014] [Indexed: 11/19/2022]
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17
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Proniewicz E, Pięta E, Zborowski K, Kudelski A, Boduszek B, Olszewski TK, Kim Y, Proniewicz LM. Raman, Surface-Enhanced Raman, and Density Functional Theory Characterization of (Diphenylphosphoryl)(pyridin-2-, -3-, and -4-yl)methanol. J Phys Chem A 2014; 118:5614-25. [DOI: 10.1021/jp503392e] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Edyta Proniewicz
- Faculty
of Foundry Engineering, AGH University of Science and Technology, ul. Reymonta 23, 30-059 Krakow, Poland
| | - Ewa Pięta
- Faculty
of Chemistry, Jagiellonian University, ul. Ingardena 3, 30-060 Krakow, Poland
| | - Krzysztof Zborowski
- Faculty
of Chemistry, Jagiellonian University, ul. Ingardena 3, 30-060 Krakow, Poland
| | - Andrzej Kudelski
- Department
of Chemistry, University of Warsaw, ul. L. Pasteura 1, 02-093, Warsaw, Poland
| | - Bogdan Boduszek
- Department
of Organic Chemistry, Faculty of Chemistry, Wroclaw University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wroclaw, Poland
| | - Tomasz K. Olszewski
- Department
of Organic Chemistry, Faculty of Chemistry, Wroclaw University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wroclaw, Poland
| | - Younkyoo Kim
- Department
of Chemistry, Hankuk University of Foreign Studies, Yongin, Kyunggi-Do 449-791, Korea
| | - Leonard M. Proniewicz
- Faculty
of Chemistry, Jagiellonian University, ul. Ingardena 3, 30-060 Krakow, Poland
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Pięta E, Proniewicz E, Kim Y, Proniewicz LM. Vibrational characterization and adsorption mode on SERS-active surfaces of guanidino-(bromophenyl)methylphosphonic acid. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 121:121-128. [PMID: 24231748 DOI: 10.1016/j.saa.2013.09.136] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2013] [Revised: 08/29/2013] [Accepted: 09/29/2013] [Indexed: 06/02/2023]
Abstract
This work presents adsorption geometry of [N-butyl-guanidino-(4-bromophenyl)methyl] phosphonic acid (4-BrPhG(n-But)P) on different SERS-active substrates (colloidal and specifically prepared Ag and Au roughened substrates). The adsorption mode is deduced from the SERS selection rules and several characteristic bands of the 4-BrPhG(n-But)P molecular fragments. The SERS spectra are compared to the experimental FT-Raman spectrum. In addition, the vibrational wavenumbers and PED's obtained for 4-BrPhG(n-But)P by using density functional theory methods with B3LYP/6-311++G(**) level of theory and PCM model is briefly presented.
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Affiliation(s)
- Ewa Pięta
- Faculty of Chemistry, Jagiellonian University, ul. Ingardena 3, 30-060 Krakow, Poland
| | - Edyta Proniewicz
- Faculty of Chemistry, Jagiellonian University, ul. Ingardena 3, 30-060 Krakow, Poland; Faculty of Foundry Engineering, AGH University of Science and Technology, ul. Reymonta 23, 30-059 Krakow, Poland.
| | - Younkyoo Kim
- Department of Chemistry, Hankuk University of Foreign Studies, Yongin, Kyunggi-Do 449-791, Republic of Korea
| | - Leonard M Proniewicz
- Faculty of Chemistry, Jagiellonian University, ul. Ingardena 3, 30-060 Krakow, Poland
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Proniewicz E, Pięta E, Kudelski A, Piergies N, Skołuba D, Kim Y, Proniewicz LM. Vibrational and Theoretical Studies of the Structure and Adsorption Mode of m-Nitrophenyl α-Guanidinomethylphosphonic Acid Analogues on Silver Surfaces. J Phys Chem A 2013; 117:4963-72. [PMID: 23682748 DOI: 10.1021/jp403045g] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Edyta Proniewicz
- Faculty of Chemistry, Jagiellonian University, ul. Ingardena 3, 30-060 Krakow, Poland
| | - Ewa Pięta
- Faculty of Chemistry, Jagiellonian University, ul. Ingardena 3, 30-060 Krakow, Poland
| | - Andrzej Kudelski
- Faculty of Chemistry, University of Warsaw, ul. L. Pasteura 1, 02-093 Warsaw, Poland
| | - Natalia Piergies
- Faculty of Chemistry, Jagiellonian University, ul. Ingardena 3, 30-060 Krakow, Poland
| | - Dominika Skołuba
- Faculty of Chemistry, Jagiellonian University, ul. Ingardena 3, 30-060 Krakow, Poland
| | - Younkyoo Kim
- Department of Chemistry, Hankuk University of Foreign Studies, Yongin, Kyunggi-Do,
449-791, Korea
| | - Leonard M. Proniewicz
- Faculty of Chemistry, Jagiellonian University, ul. Ingardena 3, 30-060 Krakow, Poland
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Zhang K, Hu D, Zhu H, Yang J, Wu J, He M, Jin L, Yang S, Song B. Enantioselective hydrolyzation and photolyzation of dufulin in water. Chem Cent J 2013; 7:86. [PMID: 23680125 PMCID: PMC3663813 DOI: 10.1186/1752-153x-7-86] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2013] [Accepted: 05/13/2013] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Dufulin is a novel, highly effective antiviral agent that activatives systemic acquired resistance of plants. This compound is widely used in China to prevent and control viral diseases in tobacco, vegetable and rice. Dufulin can treat plants infected by the tobacco mosaic virus and the cucumber mosaic virus. However, the achiral analysis and residue determination of dufulin remain underdeveloped because of its high enantioselectivity rates and high control costs. The enantioselectivity of an antiviral compound is an important factor that should be considered when studying the effect of chiral pesticides on the environment. The enantioselective degradation of dufulin in water remains an important objective in pesticide science. RESULTS The configuration of dufulin enantiomers was determined in this study based on its circular dichroism spectra. The S-(+)-dufulin and R-(-)-dufulin enantiomers were separated and identified using an amylose tris-(3,5-dimethylphenylcarbamate) chiral column by normal phase high-performance liquid chromatography. The degradation of the rac-dufulin racemate and its separate enantiomers complied with first-order reaction kinetics and demonstrated acceptable linearity. The enantioselective photolysis of rac-dufulin allowed for the faster degradation of R-(-)-dufulin, as compared with S-(+)-dufulin. However, S-(+)-dufulin was hydrolyzed faster than its antipode. CONCLUSION The photolysation and hydrolyzation of dufulin in water samples normally complied with the first-order kinetics and demonstrated acceptable linearity (R2>0.66). A preferential photolysation of the R-(-)-enantiomer was observed in water samples. Moreover, the S-(+)-enantiomer was hydrolyzed faster than its antipode.
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Affiliation(s)
- Kankan Zhang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, China.
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21
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Agafonova MN, Mostovaya OA, Antipin IS, Konovalov AI, Stoikov II. Selective transmembrane carriers for hydroxycarboxylic acids: Influence of a macrocyclic calix[4]arene platform. MENDELEEV COMMUNICATIONS 2012. [DOI: 10.1016/j.mencom.2012.03.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Wagner R, Wetzel SJ, Kern J, Kingston HMS. Improved sample preparation of glyphosate and methylphosphonic acid by EPA method 6800A and time-of-flight mass spectrometry using novel solid-phase extraction. JOURNAL OF MASS SPECTROMETRY : JMS 2012; 47:147-154. [PMID: 22359323 DOI: 10.1002/jms.2038] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The employment of chemical weapons by rogue states and/or terrorist organizations is an ongoing concern in the United States. The quantitative analysis of nerve agents must be rapid and reliable for use in the private and public sectors. Current methods describe a tedious and time-consuming derivatization for gas chromatography-mass spectrometry and liquid chromatography in tandem with mass spectrometry. Two solid-phase extraction (SPE) techniques for the analysis of glyphosate and methylphosphonic acid are described with the utilization of isotopically enriched analytes for quantitation via atmospheric pressure chemical ionization-quadrupole time-of-flight mass spectrometry (APCI-Q-TOF-MS) that does not require derivatization. Solid-phase extraction-isotope dilution mass spectrometry (SPE-IDMS) involves pre-equilibration of a naturally occurring sample with an isotopically enriched standard. The second extraction method, i-Spike, involves loading an isotopically enriched standard onto the SPE column before the naturally occurring sample. The sample and the spike are then co-eluted from the column enabling precise and accurate quantitation via IDMS. The SPE methods in conjunction with IDMS eliminate concerns of incomplete elution, matrix and sorbent effects, and MS drift. For accurate quantitation with IDMS, the isotopic contribution of all atoms in the target molecule must be statistically taken into account. This paper describes two newly developed sample preparation techniques for the analysis of nerve agent surrogates in drinking water as well as statistical probability analysis for proper molecular IDMS. The methods described in this paper demonstrate accurate molecular IDMS using APCI-Q-TOF-MS with limits of quantitation as low as 0.400 mg/kg for glyphosate and 0.031 mg/kg for methylphosphonic acid.
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Affiliation(s)
- Rebecca Wagner
- Department of Chemistry and Biochemistry, Duquesne University, Pittsburgh, Pennsylvania, USA.
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23
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Cai Q, Chen X, Qiu B, Lin Z. Electrochemiluminescent Detection Method for Glyphosate in Soybean on Carbon Fiber-ionic Liquid Paste Electrode. CHINESE J CHEM 2011. [DOI: 10.1002/cjoc.201190126] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Jan MR, Shah J, Muhammad M, Ara B. Glyphosate herbicide residue determination in samples of environmental importance using spectrophotometric method. JOURNAL OF HAZARDOUS MATERIALS 2009; 169:742-5. [PMID: 19411135 DOI: 10.1016/j.jhazmat.2009.04.003] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2009] [Revised: 04/01/2009] [Accepted: 04/01/2009] [Indexed: 05/27/2023]
Abstract
A simple selective spectrophotometric method has been developed for the determination of glyphosate herbicide in environmental and biological samples. Glyphosate was reacted with carbon disulphide to form dithiocarbamic acid which was further followed for complex formation with copper in the presence of ammonia. The absorbance of the resulting yellow coloured copper dithiocarbamate complex was measured at 435 nm with molar absorptivity of 1.864 x 10(3) L mol(-1)cm(-1).The analytical parameters were optimized and Beer's law was obeyed in the range of 1.0-70 microg mL(-1). The composition ratio of the complex was glyphosate: copper (2:1) as established by Job's method with a formation constant of 1.06 x 10(5). Glyphosate was satisfactorily determined with limit of detection and quantification of 1.1 and 3.7 microg mL(-1), respectively. The investigated method was applied successfully to the environmental samples. Recovery values in soil, wheat grains and water samples were found to be 80.0+/-0.46 to 87.0+/-0.28%, 95.0+/-0.88 to 102.0+/-0.98% and 85.0+/-0.68 to 92.0+/-0.37%, respectively.
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Affiliation(s)
- M Rasul Jan
- Institute of Chemical Sciences, University of Peshawar, NWFP 25210, Pakistan
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Tarcomnicu I, Silvestro L, Savu SR, Gherase A, Dulea C. Development and application of a high-performance liquid chromatography–mass spectrometry method to determine alendronate in human urine. J Chromatogr A 2007; 1160:21-33. [PMID: 17602696 DOI: 10.1016/j.chroma.2007.04.020] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2007] [Revised: 04/03/2007] [Accepted: 04/10/2007] [Indexed: 10/23/2022]
Abstract
Despite the high potential offered by electrospray ionization on highly polar compounds like biphosphonates, few applications have been developed. High-performance liquid chromatography (HPLC) separation methods suitable for such molecules cannot be used in tandem with mass spectrometry (MS) due to high non-volatile salt content; at the same time the sample preparation, in biological fluids, is also a challenging problem. In the past ion-pair chromatography was mainly used in the case of HPLC-MS of biphosphonates, but no application to quantitative pharmacokinetic (PK) studies has been presented. In this study, after preliminary tests with ion-pair chromatography showing a poor sensitivity, a combined derivatization of the amino group and the biphosphonate has been developed and tested in a PK study. Using this analytical approach we were able to fully validate the quantitation of alendronate in the range of 6.667-4860.0 ng/ml in urine (sample volume 2.0 ml); each analytical run was 5.0 min long. The sensitivity achieved permitted a correct evaluation of the alendronate urinary excretion over the full period of urine collection. Sample preparation despite its complexity permitted to process and analyze up to 200 samples in a working day.
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Affiliation(s)
- Isabela Tarcomnicu
- Pharma Serv International SRL, 52 Sabinelor Street, 5th District, 050853 Bucharest, Romania.
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Coutinho CFB, Coutinho LFM, Mazo LH, Nixdorf SL, Camara CAP, Lanças FM. Direct determination of glyphosate using hydrophilic interaction chromatography with coulometric detection at copper microelectrode. Anal Chim Acta 2007; 592:30-5. [PMID: 17499067 DOI: 10.1016/j.aca.2007.04.003] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2006] [Revised: 04/03/2007] [Accepted: 04/04/2007] [Indexed: 11/20/2022]
Abstract
A simple, rapid, and low-cost coulometric method for direct detection of glyphosate using hydrophilic interaction chromatography is presented. The principle of detection is based on the enhancement of the anodic current of copper microelectrode in the presence of complexing agents, such as glyphosate, with the formation of a soluble Cu(II) complex. Under optimized conditions, the limit of detection (S/R=3) for glyphosate was 0.1 mg L(-1) (0.59 microM) without any preconcentration method. The calibration curve has been found linear in all concentration range tested (from limit of detection to 34 mg L(-1)) with an excellent correlation coefficient (0.9999). The present method was successfully applied for the determination of glyphosate in fruit juices without any kind of extraction, clean-up, or preconcentration step, with recoveries of 92 and 90% for apple and grape juice, respectively.
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Affiliation(s)
- Cláudia F B Coutinho
- Universidade de São Paulo, Instituto de Química de São Carlos, Av. Trabalhador São-carlense 400, Caixa Postal 780, CEP 13566-590 São Carlos, SP, Brazil.
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Ibáñez M, Pozo OJ, Sancho JV, López FJ, Hernández F. Re-evaluation of glyphosate determination in water by liquid chromatography coupled to electrospray tandem mass spectrometry. J Chromatogr A 2006; 1134:51-5. [PMID: 17046009 DOI: 10.1016/j.chroma.2006.07.093] [Citation(s) in RCA: 83] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2006] [Accepted: 07/28/2006] [Indexed: 11/15/2022]
Abstract
An analytical method based on on-line solid-phase extraction-liquid chromatography coupled to electrospray tandem mass spectrometry (SPE-LC-ESI-MS/MS) for the determination of glyphosate and aminomethylphosphonic acid (AMPA) residues has been applied to the analysis of water samples within a Round Robin Study. The method had been previously validated in a variety of water samples and it fulfilled all the parameters of precision, accuracy, sensitivity and unequivocal confirmation. The results within the study that we participated were highly satisfactory in all cases with the only exception of glyphosate in groundwater samples, where surprisingly recoveries around 15% were obtained despite the use of isotope-labeled glyphosate as internal standard (I.S.). A slight modification has been introduced in the method, simply consisting of the acidification of sample with hydrochloric acid (HCl) to pH 1. Then, the sample is neutralized and immediately derivatized with 9-fluorenylmethylchloroformate (FMOC) before LC-MS/MS determination. Round Robin Study samples were reanalyzed using this approach, and the recoveries increased up to 98%. A possible explanation might be the slow kinetic interaction between glyphosate and some components of the matrix. These components might act as chelating agents, making glyphosate unavailable for derivatization and therefore for analysis. Several water samples collected at the Mediterranean area of Spain, and previously analyzed and being found to contain glyphosate, were also reanalyzed using this approach, obtaining higher concentrations (between 2 and 14 times) in most of cases.
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Affiliation(s)
- María Ibáñez
- Research Institute for Pesticides and Water, University Jaume I, E-12071 Castellón, Spain
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Ibáñez M, Pozo OJ, Sancho JV, López FJ, Hernández F. Residue determination of glyphosate, glufosinate and aminomethylphosphonic acid in water and soil samples by liquid chromatography coupled to electrospray tandem mass spectrometry. J Chromatogr A 2005; 1081:145-55. [PMID: 16038204 DOI: 10.1016/j.chroma.2005.05.041] [Citation(s) in RCA: 149] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
This paper describes a method for the sensitive and selective determination of glyphosate, glufosinate and aminomethylphosphonic acid (AMPA) residues in water and soil samples. The method involves a derivatization step with 9-fluorenylmethylchloroformate (FMOC) in borate buffer and detection based on liquid chromatography coupled to electrospray tandem mass spectrometry (LC-ESI-MS/MS). In the case of water samples a volume of 10 mL was derivatized and then 4.3 mL of the derivatized mixture was directly injected in an on-line solid phase extraction (SPE)-LC-MS/MS system using an OASIS HLB cartridge column and a Discovery chromatographic column. Soil samples were firstly extracted with potassium hydroxide. After that, the aqueous extract was 10-fold diluted with water and 2 mL were derivatized. Then, 50 microL of the derivatized 10-fold diluted extract were injected into the LC-MS/MS system without pre-concentration into the SPE cartridge. The method has been validated in both ground and surface water by recovery studies with samples spiked at 50 and 500 ng/L, and also in soil samples, spiked at 0.05 and 0.5 mg/kg. In water samples, the mean recovery values ranged from 89 to 106% for glyphosate (RSD <9%), from 97 to 116% for AMPA (RSD < 10%), and from 72 to 88% in the case of glufosinate (RSD < 12%). Regarding soil samples, the mean recovery values ranged from 90 to 92% for glyphosate (RSD <7%), from 88 to 89% for AMPA (RSD <5%) and from 83 to 86% for glufosinate (RSD <6%). Limits of quantification for all the three compounds were 50 ng/L and 0.05 mg/kg in water and soil, respectively, with limits of detection as low as 5 ng/L, in water, and 5 microg/kg, in soil. The use of labelled glyphosate as internal standard allowed improving the recovery and precision for glyphosate and AMPA, while it was not efficient for glufosinate, that was quantified by external standards calibration. The method developed has been applied to the determination of these compounds in real water and soil samples from different areas. All the detections were confirmed by acquiring two transitions for each compound.
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Affiliation(s)
- María Ibáñez
- Research Institute for Pesticides and Water, University Jaume I, E-12071 Castellón, Spain
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