Solid-phase microextraction microwaves

Shen G, Lee HK. Determination of triazines in soil by microwave-assisted extraction followed by solid-phase microextraction and gas chromatography-mass spectrometry. J. Chromatogr. A 2003 985 167-174. [Pg.269]

Two examples of other extraction methods of APEO from solid matrices that have been studied include solid-phase microextraction (SPME) [50] and microwave extraction [46],... [Pg.453]

The emission of low molecular weight compounds from recycled HIPS has been investigated using microwave assisted extraction or headspace solid phase microextraction followed by GC/MS (32,33). [Pg.286]

Lopez-Avila et al. [107] showed that microwave-assisted extraction of pesticides and polycyclic aromatic hydrocarbons from soil is a viable alternative to Soxhlet extraction and needs a smaller sample volume and extraction time [108,109]. These techniques have also been compared in the case of chlorophenols. Lopez-Avila et al. compared microwave-assisted extraction with electron capture gas chromatography to ELISA for the determination of polychlorinated biphenyls in soils. Both techniques are applicable to field screening and monitoring applications. Microwave-assisted extraction [111, 112] and solid-phase microextraction [113] have been applied to the extraction of pesticides from soil. It was observed by these and other workers [114] that the selectivity of microwave-assisted extraction is highly dependent on the soil composition. [Pg.10]

Solvent extraction Microwave extraction Solid phase microextraction Subcritical water extraction Subcritical water extraction Supercritical fluid extraction... [Pg.105]

Solid-phase microextraction [320-322], microwave-assisted extraction [321, 323], accelerated solvent extraction and Soxhlet extraction have been discussed [324,325]. [Pg.118]

Pino, V., J.H. Ayala, A.M. Afonso, and V. Gonzalez. 2003. Micellar microwave-assisted extraction combined with solid-phase microextraction for the determination of polycyclic aromatic hydrocarbons in a certified marine sediment. Anal. Chim. Acta All 1-91. [Pg.474]

An effective combination of focused microwave-assisted extraction with solid-phase microextraction (FMAE-SPME) was carried out for the extraction of cocaine... [Pg.345]

Extraction procedures of plant materials classical percolation, maceration, digestion, decoction, and so on, as well as supercritical fluid extraction, microwave-assisted extraction, pressurized solvent extraction, and solid-phase microextraction are described. Eor biological matrices, liquid-liquid, and solid phase extractions are mainly used for different samples such as blood, urine, microdialysates, and saliva, among others. [Pg.362]

Grimm, C.C., Lloyd, S.W., Batista, R., Zimba, RV, Using microwave distillation solid-phase microextraction gas chromatography-mass spectrometry for analysing fish tissue, J. Chromatogr. Sci.,2S, 289-296 (2000)... [Pg.601]

The focus in Chapters 7 and 8 is on the specific sample preparation approaches available for the extraction of organic compounds from environmental matrices, principally soil and water. Chapter 7 is concerned with the role of Soxhlet, ultrasonic and shake-flask extraction on the removal of organic compounds from solid (soil) matrices. These techniques are contrasted with newer developments in sample preparation for organic compound extraction, namely supercritical fluid extraction, microwave-assisted extraction and pressurized fluid extraction. Chapter 8 is arranged in a similar manner. Initially, details are provided on the use of solvent extraction for organic compounds removal from aqueous samples. This is followed by descriptions of the newer approaches, namely solid-phase extraction and solid-phase microextraction. [Pg.276]

Wang Y., Bonilla M., McNair H.M, and Khaled M. (1997) Solid phase microextraction associated with microwave assisted extraction of food products. J. High Resolut. Chromatogr. 20, 213-16. [Pg.391]

Percent extracted (key equation 18.10), p. 543 Solvent extraction of metal ions-complexes, chelates, p. 544 Accelerated and microwave-assisted solvent extraction, p. 546 Solid-phase extraction, p. 547 Solid-phase microextraction, p. 551... [Pg.552]

Shu, Y. Y., Wang, S. S., Tardif, M., and Huang, Y., Analysis of PCBs in aqueous samples by microwave-assisted headspace solid-phase microextraction, J. Chromatogr. A, 1008, 1-12, 2003. [Pg.123]

Microwave-assisted headspace solid-phase microextraction (MA-HS-SPME). A 100 /nm poly(dimethylsiloxane) 199 SPME fiber was exposed to headspace over the water sample. After extraction the fiber was transferred inside the GG injector port and desorbed at 270°G for 3 min... [Pg.679]

The procedure to be used to extract carbamate pesticides from environmental samples depends on their polarity and on the type of sample matrix involved. Various choices exist for the extraction of pesticides ranging from conventional procedures (e.g., Soxhlet extraction, liquid-liquid extraction (LLE), evaporation, steam distillation) to new methodologies including solid-phase extraction (SPE), solid-phase microextraction (SPME), supercritical fluid extraction (SEE), matrix solid-phase dispersion (MSPD), accelerated solvent extraction (ASE) and microwave-assisted extraction. " ... [Pg.904]

LLE liquid-liquid extraction SPE solid-phase extraction SPM solid-phase microextraction MAE microwave-assisted extraction SEE supercritical fluid extraction FMASE focused microwave-assisted Soxhlet extraction PSDB polystyrene-divinylbenzene NVPDB A-vinylpyrrolidane-divinylbenzene SPE solid-phase extraction LLE liquid-liquid extraction GPC gel permeation chromatography OPA f -phthalaldehyde reagent TAD thermally assisted desorption FI flow injection... [Pg.918]

Microwave-assisted desorption coupled to in situ headspace solid-phase microextraction (HS-SPME) was first proposed as a possible alternative pretreatment of samples collected from workplace monitoring. Therefore, pretreatment that takes a short time and uses little or no organic solvents has led to the recent development of a new extraction technique. Solid-phase micro-extraction (SPME) coupled with GC analysis has been used successfully to analyze pollutants in environmental matrices. MHS has been developed to achieve one-step, in situ headspace sampling of semivolatile organic compounds in aqueous samples, vegetables, and soil [7, 55-58]. [Pg.969]

Various extraction techniques have been applied and reported in literature for PCB analysis. Such methods include microwave-assisted headspace solid-phase microextraction of PCBs in aqueous samples (Shu et al. [Pg.859]

Microwave-Assisted Solvent Extraction Pressurized Fluid Extraction Supercritical Fluid Extraction Solid-Phase Extraction Solid-Phase Microextraction. Gas Chromatography Overview, Mass Spectrometry Environmental Applications. Immunoassays Overview. Liquid Chromatography Overview Reversed Phase Size-Exclusion Liquid Chromatography-Mass Spectrometry. Pesticides. Supercritical Fluid Chromatography Overview Applications. Thin-Layer Chromatography Overview. Water Analysis Organic Compounds. [Pg.2075]

Sampling, sample handling, and storage and sample preparation methods are extensively covered, and modern methods such as accelerated solvent extraction, solid-phase microextraction (SPME), QuEChERS, and microwave techniques are included. Instrumentation, the analysis of liquids and solids, and applications of NMR are discussed in detail. A section on hyphenated NMR techniques is included, along with an expanded section on MRI and advanced imaging. The IR instrumentation section is focused on FTIR instrumentation. Absorption, emission, and reflectance spectroscopy are discussed, as is ETIR microscopy. ATR has been expanded. Near-IR instrumentation and applications are presented, and the topic of chemometrics is introduced. Coverage of Raman spectroscopy includes resonance Raman, surface-enhanced Raman, and Raman microscopy. [Pg.1241]