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electrochemistry (21) 21
chemistry, analytical (19) 19
electrodes (18) 18
voltammetry (17) 17
nanotubes (12) 12
adsorptive stripping voltammetry (11) 11
insecticides (11) 11
performance liquid-chromatography (11) 11
samples (11) 11
solid-phase extraction (11) 11
thiamethoxam (11) 11
carbon (10) 10
chemistry, multidisciplinary (10) 10
diode-array detection (10) 10
electrolytes (10) 10
index medicus (10) 10
liquid-chromatography (10) 10
mass-spectrometry (10) 10
acetamiprid (9) 9
analysis (9) 9
chemistry (9) 9
oxidation (9) 9
residues (9) 9
determination (8) 8
elektrolyt (8) 8
imidacloprid (8) 8
neonicotinoids (8) 8
photocatalytic degradation (8) 8
pulse polarographic-determination (8) 8
water (8) 8
6-chloronicotinic acid (7) 7
commercial formulations (7) 7
elektrode (7) 7
glucose (7) 7
honey (7) 7
multi wall carbon nanotubes (7) 7
nanoparticles (7) 7
neonicotinoid insecticides (7) 7
carbon paste electrode (6) 6
chemistry, physical (6) 6
kinetics (6) 6
linearity (6) 6
photocatalysis (6) 6
river water (6) 6
silver (6) 6
analytical chemistry (5) 5
bismuth film electrode (5) 5
clothianidin (5) 5
gold (5) 5
hydrogen peroxide (5) 5
hydrogen-peroxide (5) 5
kohleelektrode (5) 5
pesticide-residues (5) 5
pesticides (5) 5
sensors (5) 5
silber (5) 5
standardabweichung (5) 5
voltammetrie (5) 5
amperometric determination (4) 4
biosensors (4) 4
buffer solutions (4) 4
carbon - chemistry (4) 4
chemical reaction, rate of (4) 4
chromatography-mass-spectrometry (4) 4
degradation (4) 4
dental amalgam (4) 4
differential pulse voltammetry (4) 4
electrochemical detection (4) 4
engineering, environmental (4) 4
environmental sciences (4) 4
food science & technology (4) 4
gas-chromatography (4) 4
h2o2 determination (4) 4
magnetic resonance spectroscopy (4) 4
mercury (4) 4
methods (4) 4
paste electrode (4) 4
pastes (4) 4
phosphat (4) 4
physical chemistry (4) 4
reproducibility of results (4) 4
sensor (4) 4
tandem mass-spectrometry (4) 4
thiacloprid (4) 4
universities and colleges (4) 4
vegetables (4) 4
welle (4) 4
acetat (3) 3
acetates (3) 3
adsorption (3) 3
aktivierungspotenzial (3) 3
anodic-stripping voltammetry (3) 3
aqueous-solutions (3) 3
cadmium (3) 3
carbon-electrodes (3) 3
catalysis (3) 3
cd (3) 3
chemistry/food science, general (3) 3
chromatography (3) 3
coated electrodes (3) 3
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1. Full Text Rapid, trace-level direct cathodic voltammetric determination of dopamine by oxidized multiwalled carbon nanotube–modified carbon paste electrode in selected samples of pharmaceutical importance
by Anojčić, Jasmina and Guzsvány, Valéria and Kónya, Zoltán and Mikov, Momir
Ionics, ISSN 0947-7047, 12/2019, Volume 25, Issue 12, pp. 6093 - 6106
Selected carbonaceous nanomaterial–modified carbon paste electrodes (CPEs) were compared for trace-level determination of dopamine (DA) by direct cathodic... 
Condensed Matter Physics | Injection/infusion samples | Chemistry | Dopamine | Energy Storage | Oxidized multiwalled carbon nanotubes | Renewable and Green Energy | Electrochemistry | Optical and Electronic Materials | Square wave voltammetry | Electrochemical sensor | Carbon paste electrode
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2. Full Text Bismuth modified carbon-based electrodes for the determination of selected neonicotinoid insecticides
by Guzsvány, Valéria and Papp, Zsigmond and Zbiljic, Jasmina and Vajdle, Olga and Rodic, Marko
Molecules, ISSN 1420-3049, 06/2011, Volume 16, Issue 6, pp. 4451 - 4466
Two types of bismuth modified electrodes, a bismuth-film modified glassy carbon (BiF-GCE) and a bismuth bulk modified carbon paste, were applied for the... 
Neonicotinoids | Voltammetry | Imidacloprid | Bismuth modified electrodes | Clothianidin | PULSE POLAROGRAPHIC-DETERMINATION | voltammetry | CATHODIC ELECTROCHEMICAL DETERMINATION | neonicotinoids | CHEMISTRY, ORGANIC | clothianidin | PASTE ELECTRODE | MASS-SPECTROMETRY | imidacloprid | DIODE-ARRAY DETECTION | COMMERCIAL FORMULATIONS | LIQUID-CHROMATOGRAPHY | ADSORPTIVE STRIPPING VOLTAMMETRY | FILM ELECTRODE | bismuth modified electrodes | SOLID-PHASE EXTRACTION | Electrodes | Guanidines - chemistry | Insecticides - chemistry | Reproducibility of Results | Guanidine - chemistry | Bismuth - metabolism | Electrochemistry | Guanidine - analogs & derivatives | Thiazoles - chemistry | Carbon - chemistry
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3. Full Text Ag or Au Nanoparticles Decorated Multiwalled Carbon Nanotubes Coated Carbon Paste Electrodes for Amperometric Determination of H2O2
by Guzsvány, Valéria and Vajdle, Olga and Gurdeljević, Milana and Kónya, Zoltán
Topics in Catalysis, ISSN 1022-5528, 8/2018, Volume 61, Issue 12, pp. 1350 - 1361
Composite materials made of multiwalled carbon nanotubes and silver (Ag-MWCNT) or gold particles (Au-MWCNT) were synthesized and characterized by XRD and... 
Ag-MWCNT | Voltammetry | Mediator based electrocatalytic signal enhancement | Chemistry | Au-MWCNT | Physical Chemistry | Pharmacy | Characterization and Evaluation of Materials | H 2 O 2 determination | CPE | Catalysis | Industrial Chemistry/Chemical Engineering | Nursing product | determination | GOLD NANOPARTICLES | FENTON | PARTICLES | H2O2 determination | CHEMISTRY, PHYSICAL | SENSOR | SILVER NANOPARTICLES | COMPOSITE | NANOHYBRIDS | GLUCOSE | HYDROGEN-PEROXIDE | CHEMISTRY, APPLIED
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4. Full Text Voltammetric determination of the herbicide linuron using a tricresyl phosphate-based carbon paste electrode
by Dordević, Jelena and Papp, Zsigmond and Guzsvány, Valéria and Švancara, Ivan and Trtić-Petrović, Tatjana and Purenović, Milovan and Vytřas, Karel
Sensors, ISSN 1424-8220, 01/2012, Volume 12, Issue 1, pp. 148 - 161
This paper summarises the results of voltammetric studies on the herbicide 3-(3,4-dichlorophenyl)-1-methoxy-1-methylurea (Linuron), using a carbon paste... 
Carbon paste electrode | Tricresyl phosphate | Linuron | Differential pulse voltammetry | Herbicide | GOLD | CHEMISTRY, ANALYTICAL | METABOLITES | differential pulse voltammetry | IODIDE | PESTICIDES | ENGINEERING, ELECTRICAL & ELECTRONIC | tricresyl phosphate | PHENYLUREA | INSTRUMENTS & INSTRUMENTATION | LIQUID-CHROMATOGRAPHY | carbon paste electrode | SOLID-PHASE-EXTRACTION | herbicide | SAMPLES | HPLC | WATER | Electrodes | Reproducibility of Results | Linuron - analysis | Tritolyl Phosphates - chemistry | Herbicides - analysis | Herbicides - chemistry | Rivers - chemistry | Linuron - chemistry | Electrochemical Techniques - methods | Carbon - chemistry | Hydrogen-Ion Concentration | Pastes | Herbicides | TCP (protocol) | Linearity | Carbon
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5. Full Text Rapid amperometric determination of H2O2 by a Pt nanoparticle/Vulcan XC72 composite-coated carbon paste electrode in disinfection and contact lens solutions
by Anojčić, Jasmina and Guzsvány, Valéria and Vajdle, Olga and Kónya, Zoltán and Kalcher, Kurt
Monatshefte für Chemie - Chemical Monthly, ISSN 0026-9247, 10/2018, Volume 149, Issue 10, pp. 1727 - 1738
The present work describes the preparation of a simple, sensitive, and reliable H2O2 sensor made from carbon paste surface modified with a composite of... 
Hydrogen peroxide | Voltammetry | Carbon paste electrode | Pt nanoparticles and Vulcan XC72 | Theoretical and Computational Chemistry | Chemistry | Analytical Chemistry | Chemistry/Food Science, general | Physical Chemistry | Electrochemistry | Inorganic Chemistry | Sensors | Organic Chemistry | OXIDATION | GOLD | PARTICLES | ENZYME-FREE | CHEMISTRY, MULTIDISCIPLINARY | HYDROGEN-PEROXIDE SENSOR | FIBER MICROELECTRODE | GLUCOSE | PLATINUM NANOPARTICLES | NANOTUBES | NANOCOMPOSITE
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6. Full Text Screen-printed enzymatic glucose biosensor based on a composite made from multiwalled carbon nanotubes and palladium containing particles
by Guzsvány, Valéria and Anojčić, Jasmina and Radulović, Emil and Vajdle, Olga and Stanković, Igor and Madarász, Dániel and Kónya, Zoltán and Kalcher, Kurt
Microchimica Acta, ISSN 0026-3672, 07/2017, Volume 184, Issue 7, pp. 1987 - 1996
A composite material consisting of multiwalled carbon nanotubes and palladium containing particles was synthesized and applied to the preparation of... 
Glucose oxidase | Pd-MWCNTs | Screen printed carbon electrodes | Multifloral honey | Voltammetry | determination | Blood serum | Glucose determination | REDUCED GRAPHENE OXIDE | GOLD NANOPARTICLES | CHEMISTRY, ANALYTICAL | H2O2 determination | CHITOSAN | AU NANOPARTICLES | SENSOR | PASTE ELECTRODES | AMPEROMETRIC DETERMINATION | PRUSSIAN BLUE | Blood serum Multifloral honey | HYDROGEN-PEROXIDE | DIRECT ELECTRON-TRANSFER | Oxidases | Biological products | Detectors | Nanotubes | Resveratrol | Palladium | Glucose | Dextrose | Coated electrodes | Gold | Hydrogen peroxide | Particulate composites | Carbon | Electrodes | Nanoparticles | Composite materials | Linearity | Biosensors | Multi wall carbon nanotubes
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7. Full Text β-Cyclodextrin and multiwalled carbon nanotubes modified boron-doped diamond electrode for voltammetric assay of carbendazim and its corrosion inhibition behavior on stainless steel
by Brycht, Mariola and Brycht, Mariola and Vajdle, Olga and Vajdle, Olga and Sipa, Karolina and Sipa, Karolina and Robak, Justyna and Robak, Justyna and Rudnicki, Konrad and Rudnicki, Konrad and Piechocka, Justyna and Piechocka, Justyna and Tasić, Ana and Tasić, Ana and Skrzypek, Sławomira and Skrzypek, Sławomira and Guzsvány, Valéria and Guzsvány, Valéria
Ionics, ISSN 0947-7047, 3/2018, Volume 24, Issue 3, pp. 923 - 934
In this work, the use of square-wave adsorptive stripping voltammetry (SWAdSV) in combination with boron-doped diamond electrode modified with multiwalled... 
Condensed Matter Physics | Multiwalled carbon nanotubes | β-Cyclodextrin | Chemistry | Energy Storage | Renewable and Green Energy | Electrochemistry | Optical and Electronic Materials | Voltammetry | Boron-doped diamond electrode | Carbendazim | REDUCED GRAPHENE OXIDE | ELECTROCHEMISTRY | PHYSICS, CONDENSED MATTER | SENSITIVE DETERMINATION | QUANTIFICATION | ORANGE JUICE | CHEMISTRY, PHYSICAL | beta-Cyclodextrin | PASTE ELECTRODE | PESTICIDES | ADSORPTIVE STRIPPING VOLTAMMETRY | ELECTROCHEMICAL SENSOR | SAMPLES | WATER
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8. Voltammetric behavior and determination of the macrolide antibiotics azithromycin, clarithromycin and roxithromycin at a renewable silver – amalgam film electrode
by Olga Vajdle and Valéria Guzsvány and Dušan Škorić and János Csanádi and Miloš Petković and Milka Avramov-Ivić and Zoltán Kónya and Slobodan Petrović and Andrzej Bobrowski
Electrochimica Acta, ISSN 0013-4686, 03/2017, Volume 229, p. 334
The renewable silver-amalgam film electrode (Hg(Ag)FE) was applied for voltammetric characterization and determination of semi-synthetic macrolide antibiotics... 
Electrodes | Cathodic polarization | Stripping | Adsorptivity | Silver | Nuclear magnetic resonance--NMR | Antibiotics | Adsorption | Linearity | Voltammetry
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9. Full Text SWCNT-modified carbon paste electrode as an electrochemical sensor for histamine determination in alcoholic beverages
by Stojanović, Zorica S and Mehmeti, Eda and Kalcher, Kurt and Guzsvány, Valéria and Stanković, Dalibor M
Food Analytical Methods, ISSN 1936-9751, 10/2016, Volume 9, Issue 10, pp. 2701 - 2710
In this work, a simple and rapid electrochemical method is presented for the voltammetric determination of histamine based on carbon paste electrodes... 
Histamine | Chemistry | Analytical Chemistry | Food Science | Microbiology | Chemistry/Food Science, general | DPV | Beer and wine samples | Modified carbon paste electrode | Single-walled carbon nanotubes | WINES | FOOD SCIENCE & TECHNOLOGY | METHYLAMINE DEHYDROGENASE | PERFORMANCE LIQUID-CHROMATOGRAPHY | FLUOROMETRIC DETECTION | BIOGENIC-AMINES | AMPEROMETRIC BIOSENSOR | FISH | NANOTUBES | RAPID METHOD | SAMPLES | Phosphates | Public television | Nanotubes | Chemical properties | Sensors | Electric properties | Beer
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10. Full Text Multi-residue method for determination of selected neonicotinoid insecticides in honey using optimized dispersive liquid–liquid microextraction combined with liquid chromatography-tandem mass spectrometry
by Jovanov, Pavle and Guzsvány, Valéria and Franko, Mladen and Lazić, Sanja and Sakač, Marijana and Šarić, Bojana and Banjac, Vojislav
Talanta, ISSN 0039-9140, 07/2013, Volume 111, pp. 125 - 133
The objective of this study was to develop analytical method based on optimized dispersive liquid–liquid microextraction (DLLME) as a pretreatment procedure... 
Neonicotinoids | Honey | LC–MS/MS | DLLME | LC-MS/MS | ELECTROCHEMICAL DETECTOR | CHEMISTRY, ANALYTICAL | CHLORAMPHENICOL | GAS-CHROMATOGRAPHY | MULTIRESIDUE DETERMINATION | PESTICIDE-RESIDUES | SAMPLES | DRINKING-WATER | ELECTRON-CAPTURE | SOLID-PHASE EXTRACTION | ORGANOCHLORINE PESTICIDES | Insecticides - chemistry | Oxazines - analysis | Pyridines - chemistry | Anabasine - analysis | Imidazoles - chemistry | Nitro Compounds - chemistry | Honey - analysis | Guanidines - analysis | Anabasine - chemistry | Nitro Compounds - analysis | Molecular Structure | Tandem Mass Spectrometry - methods | Thiazines - analysis | Insecticides - analysis | Reproducibility of Results | Liquid Phase Microextraction - methods | Pyridines - analysis | Thiazines - chemistry | Thiazoles - analysis | Guanidines - chemistry | Imidazoles - analysis | Thiazoles - chemistry | Oxazines - chemistry | Chromatography, Liquid - methods | Analysis | Nitriles | Insecticides | Liquid chromatography | Mass spectrometry | Methods
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11. Full Text Amperometric Determination of Glucose in White Grape and in Tablets as Ingredient by Screen-Printed Electrode Modified with Glucose Oxidase and Composite of Platinum and Multiwalled Carbon Nanotubes
by Guzsvány, Valéria and Guzsvány, Valéria and Anojčić, Jasmina and Anojčić, Jasmina and Vajdle, Olga and Vajdle, Olga and Radulović, Emil and Radulović, Emil and Madarász, Dániel and Madarász, Dániel and Kónya, Zoltán and Kónya, Zoltán and Kalcher, Kurt and Kalcher, Kurt
Food Analytical Methods, ISSN 1936-9751, 2/2019, Volume 12, Issue 2, pp. 570 - 580
Multiwalled carbon nanotubes (MWCNTs) and nanocomposite made from MWCNTs and Pt nanoparticles (Pt-MWCNTs) were used as bulk modifiers of screen-printed carbon... 
Platinum and multiwalled carbon nanotube composite mediator | Glucose oxidase | Chemistry | Analytical Chemistry | Food Science | Microbiology | Chemistry/Food Science, general | Amperometry | Food samples | Glucose determination | Screen-printed carbon electrode | NANOPARTICLES | BIOSENSORS | FOOD SCIENCE & TECHNOLOGY | ELECTROCHEMICAL SENSORS | FOOD
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12. Full Text Antimony-film electrode for the determination of trace metals by sequential-injection analysis/anodic stripping voltammetry
by Guzsvány, Valéria and Nakajima, Hizuru and Soh, Nobuaki and Nakano, Koji and Imato, Toshihiko
Analytica Chimica Acta, ISSN 0003-2670, 2010, Volume 658, Issue 1, pp. 12 - 17
The possibility of applying antimony-film modified glassy carbon electrode in sequential-injection analysis (SIA) was investigated with the objective of... 
Cadmium(II) | Lead(II) | Antimony-film electrode | Sequential-injection analysis | Anodic stripping voltammetry | Hydrochloric acid | Electrolytes | Universities and colleges | Metal industry
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13. Full Text Trace level voltammetric determination of lead and cadmium in sediment pore water by a bismuth-oxychloride particle-multiwalled carbon nanotube composite modified glassy carbon electrode
by Cerovac, Sandra and Guzsvány, Valéria and Kónya, Zoltán and Ashrafi, Amir M and Švancara, Ivan and Rončević, Srđan and Kukovecz, Ákos and Dalmacija, Božo and Vytřas, Karel
Talanta, ISSN 0039-9140, 03/2015, Volume 134, pp. 640 - 649
Two multiwalled carbon nanotubes-based composites modified with bismuth and bismuth-oxychloride particles were synthesized and attached to the glassy carbon... 
Bismuth-oxychloride/multiwalled carbon nanotubes | Modified electrodes | Lead and cadmium | Determination | Sediment pore water | Bismuth/multiwalled carbon nanotubes | HEAVY-METAL IONS | CHEMISTRY, ANALYTICAL | CD(II) | PB(II) | PASTE ELECTRODE | PLATED CARBON | MERCURY | ANODIC-STRIPPING VOLTAMMETRY | NEONICOTINOID INSECTICIDES | FILM ELECTRODE | MICROELECTRODES | Cadmium | Chemical reaction, Rate of | Sediments (Geology) | Nanotubes | Electrodes | Electrolytes | Nanostructure | Porosity | Sediments | Acetates | Glassy carbon
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14. Full Text Hydrodynamic chronoamperometric determination of hydrogen peroxide using carbon paste electrodes coated by multiwalled carbon nanotubes decorated with MnO2 or Pt particles
by Anojčić, Jasmina and Guzsvány, Valéria and Vajdle, Olga and Madarász, Dániel and Rónavári, Andrea and Kónya, Zoltán and Kalcher, Kurt
Sensors & Actuators: B. Chemical, ISSN 0925-4005, 10/2016, Volume 233, pp. 83 - 92
In this comparative study a traditional paraffin oil and graphite powder based carbon paste electrode (CPE) was surface modified with multiwalled carbon... 
Hydrodynamic chronoamperometry | H2O2 and glucose determination | Spiked milk | Glucose infusion | Pt-MWCNT and MnO2-MWCNT | and glucose determination | Pt-MWCNT and MnO | H | MWCNT | O | ELECTROCHEMISTRY | FENTON | CHEMISTRY, ANALYTICAL | GLUCOSE-OXIDASE | INK | SENSOR | NANOHYBRIDS | AMPEROMETRIC DETERMINATION | NANOPARTICLES | INSTRUMENTS & INSTRUMENTATION | REMOVAL | BIOSENSORS | Pastes | Electrodes | Platinum | Particulate composites | Sensors | Glucose | Carbon
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15. Full Text Conditioning of renewable silver amalgam film electrode for the characterization of clothianidin and its determination in selected samples by adsorptive square-wave voltammetry
by Brycht, Mariola and Skrzypek, Sławomira and Guzsvány, Valéria and Berenji, Janoš
Talanta, ISSN 0039-9140, 12/2013, Volume 117, pp. 242 - 249
A new square-wave adsorptive stripping voltammetric (SWAdSV) method was developed for the determination of the neonicotinoid insecticide clothianidin ( ),... 
Renewable silver amalgam film electrode | Voltammetry | Determination | Clothianidin | River water | Corn seeds | CHEMISTRY, ANALYTICAL | STRIPPING VOLTAMMETRY | THIAMETHOXAM | NITENPYRAM | MASS-SPECTROMETRY | CARBON-PASTE ELECTRODE | LIQUID-CHROMATOGRAPHY | SW VOLTAMMETRY | DENTAL AMALGAM | NEONICOTINOID INSECTICIDES RESIDUES | Zea mays - chemistry | Limit of Detection | Reproducibility of Results | Electrochemical Techniques | Humans | Silver - chemistry | Neonicotinoids | Guanidines - analysis | Mercury - chemistry | Pesticides - analysis | Water Pollutants, Chemical - analysis | Thiazoles - analysis | Electrodes | Rivers - chemistry | Equipment Reuse | Hydrogen-Ion Concentration | Insecticides | Analysis | Chemical properties | Reduction | Dental amalgams | Seeds | Dental materials | Pretreatment | Conditioning | Silver base alloys
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16. Full Text Development of HPLC-DAD method for determination of neonicotinoids in honey
by Jovanov, Pavle and Guzsvány, Valéria and Lazić, Sanja and Franko, Mladen and Sakač, Marijana and Šarić, Ljubiša and Kos, Jovana
Journal of Food Composition and Analysis, ISSN 0889-1575, 06/2015, Volume 40, pp. 106 - 113
After the EU banned the use of the neonicotinoids in flowering crops that honeybees might visit, there has been an increased interest in determining the... 
Honey | Regulatory issues in food composition | HPLC-DAD | Pesticide residues in food | QuEChERS | Neonicotinoids | Food safety | Food composition | Food analysis | RSM | DLLME | METABOLITES | BEE | MULTI-RESIDUE METHOD | FOOD SCIENCE & TECHNOLOGY | TANDEM MASS-SPECTROMETRY | PERFORMANCE LIQUID-CHROMATOGRAPHY | EXTRACTION | MICROEXTRACTION | GAS-CHROMATOGRAPHY | PESTICIDE-RESIDUES | CHEMISTRY, APPLIED | INSECTICIDES | Analysis | High performance liquid chromatography | Methods
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