Results 201 to 210 of about 10,737,248 (259)
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Microextraction sample preparation techniques in biomedical analysis
Journal of Separation Science, 2014Biologically active compounds are found in biological samples at relatively low concentration levels. The sample preparation of target compounds from biological, pharmaceutical, environmental, and food matrices is one of the most time‐consuming steps in the analytical procedure. The microextraction techniques are dominant.
Malgorzata, Szultka +3 more
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Solvent-free microextraction techniques in gas chromatography
Analytical and Bioanalytical Chemistry, 2011Microextraction techniques represent a major part of modern sample preparation in the analysis of organic micropollutants. This article provides a short overview of recent developments in solvent-free microextraction techniques. From the first open-tubular trap techniques in the mid-1980s to recent packed-needle devices, different implementations of in-
Laaks, Jens +2 more
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Recent development and applications of poly (ionic liquid)s in microextraction techniques
Trends in Analytical Chemistry (TrAC), 2019Microextraction techniques have been developed rapidly in recent years due to their numerous advantages including simplicity, miniaturization, cost-effectiveness, easy automation, low consumption of sample and eco-friendliness. Poly (ionic liquid)s (PILs)
Meng Mei, Xiaojia Huang, Lei Chen
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Application of ionic liquids in microextraction techniques: Current trends and future perspectives
Trends in Analytical Chemistry (TrAC), 2019Ionic liquids (ILs) with their unique properties found so far numerous analytical applications. Among them ILs both in their liquid form and immobilized on the surface or within the pores of a solid support were successfully utilized in microextraction ...
R. Marcinkowska +4 more
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Microextraction techniques for analysis of cannabinoids
TrAC Trends in Analytical Chemistry, 2016Abstract Analysis of cannabinoids in biological and other matrices is of paramount importance in forensic toxicology, since they are the most widely abused drugs over the globe. Generally, extraction of cannabinoids from biological matrices is achieved by liquid-liquid extraction (LLE) and solid-phase extraction (SPE).
Rajeev Jain, Ritu Singh
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Advances in solvent-microextraction techniques
TrAC Trends in Analytical Chemistry, 2013Abstract Since its inception in 1995, solvent-microextraction (SME) techniques for sample preparation have grown increasingly popular due to their simplicity, low cost, and adaptability to a wide variety of sample types and analytes. SME methods are used alone or as final clean-up and concentration techniques in preparing environmental, clinical ...
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Recent developments of dispersive liquid-liquid microextraction technique
Chinese Journal of Chromatography, 2015As a relatively new sample preparation technique, dispersive liquid-liquid microextraction (DLLME) has the advantages of simplicity of operation, high enrichment factor and low consumption of organic solvent. In this review, the recent advances of DLLME and its important applications are briefly reviewed, including (1) the combined use of DLLME with ...
Xiaohuan, Zang +3 more
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Bioanalysis, 2020
The interest in alternative biological matrices (e.g., hair and saliva) for forensic toxicology analysis has increased, and recent developments in sample preparation have targeted rapid, cheap, efficient and eco-friendly methods, including ...
Bruno Ruiz Brandão da Costa +5 more
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The interest in alternative biological matrices (e.g., hair and saliva) for forensic toxicology analysis has increased, and recent developments in sample preparation have targeted rapid, cheap, efficient and eco-friendly methods, including ...
Bruno Ruiz Brandão da Costa +5 more
semanticscholar +1 more source
Microextraction sample preparation techniques in forensic analytical toxicology
Biomedical Chromatography, 2018AbstractSample preparation is a critical step in forensic analytical toxicology. Different extraction techniques are employed with the goals of removing interferences from the biological samples, such as blood, tissues and hair, reducing matrix effects and concentrating the target analytes, among others. With the objective of developing faster and more
Yi He, Marta Concheiro‐Guisan
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Trends in Analytical Chemistry (TrAC), 2019
Solid phase microextraction has been explored and applied in different areas of analytical chemistry since its inception, as evidenced by the various reviews published to show its widespread applications and benefits over conventional methods. Given that
M. Lashgari, Varoon Singh, J. Pawliszyn
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Solid phase microextraction has been explored and applied in different areas of analytical chemistry since its inception, as evidenced by the various reviews published to show its widespread applications and benefits over conventional methods. Given that
M. Lashgari, Varoon Singh, J. Pawliszyn
semanticscholar +1 more source