Results 41 to 50 of about 10,894,647 (232)

Recent Advances in Sample Preparation for Cosmetics and Personal Care Products Analysis

open access: yesMolecules, 2021
The use of cosmetics and personal care products is increasing worldwide. Their high matrix complexity, together with the wide range of products currently marketed under different forms imply a challenge for their analysis, most of them requiring a sample
Maria Celeiro   +3 more
doaj   +1 more source

Recent applications of microextraction sample preparation techniques in biological samples analysis [PDF]

open access: yes, 2021
Analysis of biological samples is affected by interfering substances with chemical properties similar to those of the target analytes, such as drugs. Biological samples such as whole blood, plasma, serum, urine and saliva must be properly processed for ...
Hesane Zolfaghari   +7 more
core   +1 more source

Microextraction for ambient ionization mass spectrometry analysis

open access: yesAdvances in Sample Preparation, 2022
Ambient ionization allows desorption of molecules and formation of ions directly from samples in native environment. Compared with traditional ionization techniques, it has unique features of simplicity and convenience, thus has attracted considerable ...
Yijing Liu, Yuhan Shang, Qiang Ma
doaj   +1 more source

Modern Approaches to Preparation of Body Fluids for Determination of Bioactive Compounds

open access: yesSeparations, 2019
The current clinical and forensic toxicological analysis of body fluids requires a modern approach to sample preparation characterized by high selectivity and enrichment capability, suitability for micro-samples, simplicity and speed, and the possibility
Katarzyna Madej, Wojciech Piekoszewski
doaj   +1 more source

Hydrophobic deep eutectic solvents in microextraction techniques–A review

open access: yesMicrochemical journal (Print), 2020
Over the past decade, deep eutectic solvents (DES) have been widely studied and applied in sample preparation techniques. Until recently, most of the synthesized DES were hydrophilic, which prevented their use in the extraction of aqueous samples ...
P. Makoś, E. Słupek, J. Gębicki
semanticscholar   +1 more source

Supramolecular solvent-based microextraction techniques for sampling and preconcentration of heavy metals: A review

open access: yesAnalitical chemistry (Tel Aviv, 1993), 2021
Even very low concentrations of heavy metal pollutants have adverse effects on the environment and on human health. Thus, determining even trace concentrations of heavy metals in various samples has attracted a lot of attention.
V. Jalili, R. Zendehdel, A. Barkhordari
semanticscholar   +1 more source

Ionic Liquid-Assisted DLLME and SPME for the Determination of Contaminants in Food Samples

open access: yesSeparations, 2022
Developing effective and green methods for food analysis and separation has become an urgent issue regarding the ever-increasing concern of food quality and safety.
Lirong Nie   +6 more
doaj   +1 more source

Environmental Applications of Solid Phase Microextraction Techniques [PDF]

open access: yes, 2015
Miniaturization is a strategy employed in sample preparation that has gained much prominence in recent years due to the need to develop more efficient procedures that consume less solvent and time. The analysis of important families of contaminants, such
Torres Padrón, María Esther   +3 more
core   +1 more source

Recent developments in solid-phase microextraction for on-site sampling and sample preparation [PDF]

open access: yes, 2011
Recent developments in solid-phase microextraction for on-site sampling and sample preparationOn-site sampling and sample preparation favor portable, solventless or even solvent-free techniques.
Duan, Chunfeng   +4 more
core   +1 more source

Recent Developments in Microextraction Related Techniques for Trace Environmental Analysis [PDF]

open access: yes, 2011
Sample preparation is always a bottleneck in system for chemical analysis. In recent years, the development of methodologies for microextraction related techniques has progressed phenomenally.
Li Gang Pan   +4 more
core   +1 more source

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