micro-solid phase extraction
Polypyrrole-magnetite dispersive micro-solid phase extraction for the determination of rhodamine 6G and crystal violet in textile wastewater
... During past decades, many conventional methods have been reported in dye analysis, yet they are high in cost and often less adaptable in wastewater containing dyes. A simple and economical technique known as dispersive ...
37
Molecularly Imprinted Micro Solid Phase Extraction for the Selective Determination of Phenolic Compounds in Environmental Water Samples with High Performance Liquid Chromatraphy
... 2,4,6-trichlorophenol molecularly imprinted suspension polymer has been prepared and applied to the molecularly im- printed micro-solid-phase extraction procedure for selective ...
9
New micro-solid phase extraction techniques based on mesoporous materials for selected antibiotic and antifungal agents
... 1.500 µg L -1 and good relative recoveries in the range of 80.9 - 116.8%. A D-µ-SPE method incorporating new mesoporous carbon COU-2 as adsorbent was developed for the determination of three penicillins in water and milk ...
62
A plug based micro solid phase extraction (uSPE) microfluidic chip for the isolation and purification of DNA
... The extraction performances of APTES and chitosan are first tested with flat samples. These samples are made of a <100> DSP Si wafer with native oxide. This wafer is diced in the x-direction with a pitch of ...
145
Micro-solid phase extraction methods based on molecularly imprinted polymer for determination of toluene metabolites in urine samples
... dispersive solid phase extraction (DISPE) methods were developed based on surface imprinted hippuric acid grafted onto silica gel (MIP@SiO 2 -HA) and surface imprinted o-cresol grafted onto silica ...
81
Chemical Analysis of Volatile Constituents of Pulicaria Mauritanica Isolated by Hydrodistillation and Headspace Solid-phase Micro-extraction Techniques. Antimicrobial Activity of its Essential Oil
... quasi-total extraction of plant volatiles and the latter technique is controlled by a solid/gas equilibrium step and a competition between interfering molecules at binding sites on the ...the ...
13
Monitoring the emission of volatile organic compounds from the leaves of Calocedrus macrolepis var. formosana using solid-phase micro-extraction
... with slight modifi cations (Fig. 1). Before sampling, the SPME fi ber was conditioned for 10 min at 250°C. The leaves of C. macrolepis var. formosana were put into the glass sampling chamber, and then a SPME coupled ...
8
Solid-phase Extraction as Sample Preparation for Bioassay-based Micropollutant Quantification
... SPE discs were first designed to treat large sample volumes with higher processing rate than columns and to avoid the blockages caused by suspended particles and matrix components. Sorbent particles with 8 to 12 μm in ...
124
An experimental and modelling investigation into the solid-phase extraction of pollutants from water
... for solid-phase e x t r a c t i o n ...the micro-column 96-well plate format and have contributed to an increase in the rate of extraction and analysis of pharmaceutical ...
258
Multivariate Optimization of Volatile Compounds Extraction in Chardonnay Wine by Headspace Solid Phase Micro Extraction and Gas Chromatography Coupled with Tandem Mass Spectrometry
... formed in accordance with the interest of this work: cover a wide range of polarity, vo- latility and functionality represented by selected volatile compounds. Several authors have reported that DVB/CAR/PDMS fiber as the ...
13
Developments/Application of Ionic Liquids/Poly Ionic Liquids in Magnetic Solid-Phase Extraction and Solid Phase Microextraction
... liquid extraction techniques {e.g., liquid-liquid extraction (LLE), liquid-phase microextraction (LPME), single-drop microextraction (SDME), and solid-phase ...
9
A precision apparatus, with solid phase micro-extraction monitoring capability, for incorporation studies of gaseous precursors into insect-derived metabolites
... An apparatus is described that facilitates the determination of incorporation levels of isotope- labelled, gaseous precursors into volatile insect-derived metabolites. Atmospheres of varying gas compositions can be ...
9
Evaluation of Volatile Compounds of “Tiger Nut Beverage” (Orxata de Xufla) Headspace by Optimized Solid Phase Micro Extraction
... Samples were purchased in local supermarkets. The experimental design for optimization of the analytical me- thod was performed with samples of the tiger nut beverage of the same batch treated by ultra high temperature ...
15
Molecularly imprinted polymer solid phase extraction for the analysis of organophosphorus pesticides in food samples
... for solid-phase extraction ...a solid sorbent where the analytes are absorbed and then eluted with an organic ...liquid-liquid extraction (LLE) procedure, it decreases the use of toxic ...
32
Determination of Iron Species by Combination of Solvent Assisted-Dispersive Solid Phase Extraction and Spectrophotometry
... The pH of the solution has a critical role in the formation of complex between Fe(II) and TPTZ and its extraction into the fine particles of benzophenone. So, the effect of sample pH on the extraction of ...
9
The Potential of EDTA - Modified Rice Husk Ash as Solid Phase Extraction Resin in Seawater
... the solid sorbent. Typically, for reversed phase sorbent (such as octadecy{l-bonded silica), methanol is frequently used, followed with water or aqueous buffer whose pH and ionic strength are similar to ...
31
Analysis of Phase Noise Influence on Micro-Doppler Feature Extraction of Vibrating Target
... human micro-Doppler signature in forest environments, while two continuous-wave radars at 1 GHz and 5 GHz are used to detect human motion and a time- frequency transform is applied to analyze the echo ...
14
Solid Phase Extraction of Ultra Trace Amounts of Ni2+ by Dimethylglyoxime (DMG) Immobilized on Column
... Surfactant molecules form self-aggregate structures called “critical micellar concentration “(CMC). The formation of micelles is aided by cooperative interaction (due to van der waals forces) between the long hydrocarbon ...
5
SOLID PHASE SYNTHESIS
... The synthesis (29) was carried out on a copoly(styrene-1%-divinylbenzene)- resin support using the general methods described above. The C-terminal Boc- Val was anchored to the solid matrix by a benzyl ester bond, ...
27
Application of linear model of sorption dynamics to the comparison of solid phase extraction systems of phenol
... 150, -200) the definite choice between liquid film and solid diffusion models could not be done on the base of dynamic breakthrough curves only. The absence of reasonable impact of diffusion inside particles in ...
14