Search
Search results for: ANALYTICAL CHEMISTRY
-
Badania międzylaboratoryjne w chemii analitycznej. Interlaboratory tests in analytical chemistry.
PublicationW pracy dokonano podziału dostępnych badań międzylaboratoryjnych w zależności od założonego celu badań. Przedstawiono i scharakteryzowano podstawowe typy programów badań międzylaboratoryjnych oraz aspekt ich organizacji. Omówiono również wykorzystanie badań biegłości/porównań międzylaboratoryjnych w procesach akredytacji i nadzoru laboratoriów oraz możliwy sposób obróbki danych nadesłanych przez uczestników badań.
-
Some remarks on gas chromatographic challenges in the context of green analytical chemistry
PublicationOmówiono możliwości wprowadzenia zasad zielonej chemii analitycznej w odniesieniu do technik chromatograficznych.
-
Optimization of liquid chromatographic separation of pharmaceuticals within green analytical chemistry framework
PublicationThe contribution is aimed at the development of methodology that allows to consider green analytical chemistry criteria during optimization of liquid chromatographic separation with design of experiment. The objectives of the optimization are maximization of peak areas of five non-steroid anti-inflammatory drugs, maximization of resolution between peaks, with simultaneous shortening of chromatographic separation time and minimization...
-
International Journal of Analytical Chemistry
Journals -
Eurasian Journal of Analytical Chemistry
Journals -
Recent developments and future trends in solid phase microextraction techniques towards green analytical chemistry
PublicationSolid phase microextraction find increasing applications in the sample preparation step before chromatographic determination of analytes in samples with a complex composition. These techniques allow for integrating several operations, such as sample collection, extraction, analyte enrichment above the detection limit of a given measuring instrument and the isolation of analytes from sample matrix. In this work the information about...
-
Analytical chemistry in technical approaches: immobilization of biosorbent waste containing heavy metals in cemented materials
PublicationAn ecologically safe and economically justified method of stabilization of the used biosorbents was developed. Sorbent contaminated with heavy metals has been successfully solidified/stabilized using a hydraulic binder. The test results indicated that up to 1% of the biosorbent residue used could be added without compromising the compressive strength of the mortar. The compressive strength of the modified mortars did not change...
-
Deep eutectic solvent based method for analysis of Niclosamide in pharmaceutical and wastewater samples – A green analytical chemistry approach
PublicationThe paper presents a simple, but very effective and sensitive spectrophotometric method for trace analysis of Niclosamide based on liquid–liquid microextraction using deep eutectic solvents (DESs) prior to its quantification. Here, different DES systems, such as Choline chloride (ChCl) + Urea, ChCl + Citric acid, ChCl + Ethylene glycol and ChCl + Phenol, were synthesized and evaluated at different molar ratios, selecting ChCl + Phenol...
-
INDIAN JOURNAL OF CHEMISTRY SECTION A-INORGANIC BIO-INORGANIC PHYSICAL THEORETICAL & ANALYTICAL CHEMISTRY
Journals -
Iranian Journal of Analytical Chemistry
Journals -
Current Topics in Analytical Chemistry
Journals -
Journal of Analytical Methods in Chemistry
Journals -
Analytical and Bioanalytical Chemistry Research
Journals -
Analytical Methods in Environmental Chemistry Journal
Journals -
AGREE—Analytical GREEnness Metric Approach and Software
PublicationGreen analytical chemistry focuses on making analytical procedures more environmentally benign and safer to humans. The amounts and toxicity of reagents, generated waste, energy requirements, the number of procedural steps, miniaturization, and automation are just a few of the multitude of criteria considered when assessing an analytical methodology’s greenness. The use of greenness assessment criteria requires dedicated tools. We...
-
AGREE—Analytical GREEnness Metric Approach and Software
Publication -
Peer Reviewed: A Practical Guide to Analytical Method Validation
Publication -
1-(2-Pyridylazo)-2-naphthol as Possible Analytical Reagent
Publication -
Chiral analysis of chloro intermediates of methylamphetamine by one-dimensional and multidementional NMR and GC/MS
PublicationImpurity profiling and classification of abused drugs using chiral analytical techniques is of particular interest and importance because of the additional information obtained fromthis approach. When these methods are applied to the synthesis of illicitly used substances, they can supply valuable information about the conditions/chemicals used in the synthesis. We have applied GC and NMR methods to the study of intermediates found...
-
pH Gradient as a Tool for the Separation of Ionizable Analytes in Reversed-Phase High-Performance Chromatography
Publication -
pH Gradient Reversed-Phase HPLC
Publication -
Application of Bayesian Multilevel Modeling in the Quantitative Structure–Retention Relationship Studies of Heterogeneous Compounds
Publication -
Determination of pKa by pH Gradient Reversed-Phase HPLC
Publication -
Analysis of Isocratic-Chromatographic-Retention Data using Bayesian Multilevel Modeling
Publication -
How Much Can We Learn from a Single Chromatographic Experiment? A Bayesian Perspective
Publication -
Maximum A Posteriori Bayesian Estimation of Chromatographic Parameters by Limited Number of Experiments
Publication -
Simultaneous Determination of pKa and Lipophilicity by Gradient RP HPLC
Publication -
pH/Organic Solvent Double-Gradient Reversed-Phase HPLC
Publication -
Influence of pH on Retention in Linear Organic Modifier Gradient RP HPLC
Publication -
Chemically Bonded Silica Stationary Phases: Synthesis, Physicochemical Characterization, and Molecular Mechanism of Reversed-Phase HPLC Retention
Publication -
Sample Concentration of Charged Small Molecules and Peptides in Capillary Electrophoresis by Micelle to Cyclodextrin Stacking
Publication -
Statistical theory of component overlap in multicomponent chromatograms
Publication -
Porous, High Capacity Coatings for Solid Phase Microextraction by Sputtering
Publication -
Headspace Solvent Microextraction
Publication -
Extraction of mass spectra free of background and neighboring component contributions from gas chromatography/mass spectrometry data
Publication -
Miniaturization and Automation of an Internally Cooled Coated Fiber Device
Publication -
Headspace Liquid-Phase Microextraction of Chlorobenzenes in Soil with Gas Chromatography-Electron Capture Detection
Publication -
In-Tube Molecularly Imprinted Polymer Solid-Phase Microextraction for the Selective Determination of Propranolol
Publication -
Membrane Solid Phase Microextraction - a new concept of sorbent preparation
PublicationOpracowano nowy układ sorpcyjny do izolacji i/lub wzbogacania polarnych analitów organicznych z próbek wody z zastosowaniem techniki solid phase microextraction (SPME). Układ bazuje na oddzieleniu sorbentu polarnego od próbki za pomocą membrany hydrofobowej. Próbnik membrane-SPME (M-SPME) sporządzono z zastosowaniem polietylenoglikolu (PEG)o masie cząsteczkowej 20 kDa. Polimer ten jest rozpuszczalny w wodzie i w typowych warunkach...
-
Sensitive Determination of Cd in Small-Volume Samples by Miniaturized Liquid Drop Anode Atmospheric Pressure Glow Discharge Optical Emission Spectrometry
Publication -
Flowing Liquid Anode Atmospheric Pressure Glow Discharge as an Excitation Source for Optical Emission Spectrometry with the Improved Detectability of Ag, Cd, Hg, Pb, Tl, and Zn
Publication -
PEDOT(PSS) as Solid Contact for Ion-Selective Electrodes: The Influence of the PEDOT(PSS) Film Thickness on the Equilibration Times
Publication -
Accurate, Direct, and High-Throughput Analyses of a Broad Spectrum of Endogenously Generated DNA Base Modifications with Isotope-Dilution Two-Dimensional Ultraperformance Liquid Chromatography with Tandem Mass Spectrometry: Possible Clinical Implication
Publication -
Solid-Contact Ion-Selective Electrodes with Highly Selective Thioamide Derivatives of p-tert-Butylcalix[4]arene for the Determination of Lead(II) in Environmental Samples
Publication -
Equilibration Time of Solid Contact Ion-Selective Electrodes
Publication -
Solid-Contact pH Sensor without CO2Interference with a Superhydrophobic PEDOT-C14as Solid Contact: The Ultimate “Water Layer” Test
Publication -
Three Wavelength Substrate System of Neutrophil Serine Proteinases
Publication -
Highly Specific Substrates of Proteinase 3 Containing 3-(2-Benzoxazol-5-yl)-l-alanine and Their Application for Detection of This Enzyme in Human Serum
Publication -
Differentiating between Inactive and Active States of Rhodopsin by Atomic Force Microscopy in Native Membranes
Publication -
Chemically modified glass fiber as a matrix-free reference material for volatile compounds
PublicationW pracy opisano sposób wytwarzania nowego typu bezmatrycowych materiałów odniesienia lotnych związków organicznych. Do otrzymywania lotnych analitów wykorzystano technikę termicznego rozkładu związków powierzchniowych. Jako nośnik zastosowano modyfikowane chemicznie włókna szklane. Związkiem oznaczanym był chlorek metylu.