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Solid-phase microextraction sampling. Solid phase microextraction, or SPME, is a solid phase extraction sampling technique that involves the use of a fiber coated with an extracting phase, that can be a liquid (polymer) or a solid (sorbent), [1] which extracts different kinds of analytes (including both volatile and non-volatile) from different ...
Solid-phase microextraction (SPME), is a solid phase extraction technique that involves the use of a fiber coated with an extracting phase, that can be a liquid (polymer) or a solid (sorbent), which extracts different kinds of analytes (including both volatile and non-volatile) from different kinds of media, that can be in liquid or gas phase ...
Through this support, he invented the Solid-phase microextraction (SPME) technique which "uses a solid coating on a sample probe to selectively extract chemical substances from blood, saliva, urine, and even plasma. After a simple washing step, the probe can then be placed in front of the mass spectrometer for analysis."
Solid-phase microextraction (SPME) techniques are used to collect VOCs at low concentrations for analysis. [78] As applied to breath analysis, the following modalities are employed for sampling: gas sampling bags, syringes, evacuated steel and glass containers. [79]
One example is the analysis of five local anesthetics in blood using headspace solid-phase microextraction (HS-SPME) and gas chromatography–mass spectrometry–electron impact ionization selected ion monitoring (GC–MS–EI-SIM). Local anesthesia is widely used but sometimes these drugs can cause medical accidents.
The feasibility of MIPs in solid-phase extraction, solid-phase microextraction, and stir bar sorption extraction has been studied in several publications. [19] Moreover, chromatography techniques such as HPLC and TLC can make use of MIPs as packing materials and stationary phases for the separation of template analytes.
Electromembrane extraction. Electro membrane extraction, or EME, is a miniaturized liquid-liquid extraction technique developed for sample preparation of aqueous samples prior to analysis by chromatography, electrophoresis, mass spectrometry, and related techniques in analytical chemistry. [1] EME involves the use of a small supported liquid ...
Occurrence. 2,4,6-Trichloroanisole represents one of the strongest of off-flavors, substances "generated naturally in foods/beverages [that considerably] deteriorate the quality" of such products. [1][2] It is also a component of some drinking waters. [3] It has also been detected in blood samples. [4]