Solid-phase extraction
Magnetic Solid-Phase Extraction Combined with Dispersive Liquid-Liquid Microextraction Followed by HPLC for Determination of Four Aromatic Amines Released from Azo Dyes in Paper Samples
... novel extraction technique combining dispersive liquid-liquid microextraction (DLLME) with magnetic solid-phase extraction (MSPE) is presented for pre-concentration of four primary aromatic ...
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Determination of Estrogens in Milk Using Polypyrrole Fiber-Mediated Solid-Phase Extraction Followed by High Performance Liquid Chromatography
... packed-fiber solid-phase extraction (PFSPE) platform, the extraction capability could be efficiently improved and the volume of desorption solvent could be reduced to microliter ...
7
New sorbents based on poly(methyloctylsiloxane) immobilized on silica for use in solid-phase extraction.
... NEW SORBENTS BASED ON POLY(METHYLOCTYLSILOXANE) IMMOBILIZED ON SILICA FOR USE IN SOLID-PHASE EXTRACTION. This paper presents an easy and practical procedure to obtain silica-based C-8 type sorbents ...
4
Solid-phase extraction for gas chromatographic mass spectrometric determination of the veterinary drug xylazine in human blood.
... using solid-phase extraction and gas chromatography–mass ...that solid-phase extraction is used as sample preparation technique for the determination of this compound in ...
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Solid-phase extraction (SPE) and solid-phase microextraction of pyrethroids in water.
... Para efeito comparativo, determinou-se o tempo de extração, após o qual foram obtidos cromatogramas com as áreas semelhantes às obtidas na extração por SPE, partindo-se da amostra de mes[r] ...
4
Solid phase extraction based on nanomaterials for isolation of urinary volatile metabolites
... Sometimes, certain molecules originating from metabolic disturbances are observed in cancer cells relative to their counterparts, and their altered levels can be measured to establish a correlation with the diseased ...
109
J. Braz. Chem. Soc. vol.22 número8
... using solid-phase extraction (SPE) and high performance liquid chromatography (HPLC) with detection through ultraviolet-diode array (UV-DAD) or luorescence ...
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J. Braz. Chem. Soc. vol.27 número12
... on-line solid phase extraction method based on MWCNTs coated cellulose acetate membrane was developed for the extraction and preconcentration of REEs, prior to simultaneous ICP OES ...
6
Nonanoic Acid-Coated Magnetite Nanoparticles for Separation and Preconcentration of Lead and Copper in Tobacco Samples prior to Flame Atomic Absorption Spectrometry Determination
... magnetic solid phase extraction procedure followed by F AAS was proposed for the determination of Pb and Cu in tobacco ...magnetic solid phase extraction procedure eliminates the ...
8
Quím. Nova vol.29 número2
... A solid phase extraction procedure using Amberlite XAD-1180/Pyrocatechol violet (PV) chelating resin for the determination of iron and lead ions in various environmental samples was ...
5
J. Braz. Chem. Soc. vol.24 número5
... solvent extraction (PSE) with solid phase extraction (SPE) cleanup and gas chromatography system with electron capture detection (GC-ECD) has been developed for determination of ...
6
J. Braz. Chem. Soc. vol.26 número1
... dispersive solid-phase extraction of 11 triazine herbicides and 5 neonicotine insecticides from ...The extraction conditions such as the amount of graphene, the desorption solvent and the ...
9
J. Braz. Chem. Soc. vol.16 número6A
... direct solid analysis by flame atomic absorption spectrometry (DSA-FAAS) with prior solid phase extraction procedure is proposed for the determination of lead in water ...naphthalene ...
7
J. Braz. Chem. Soc. vol.25 número7
... C18 solid-phase extraction (SPE) and liquid chromatography with electrospray interface tandem mass spectrometry was optimized, validated and applied in estuarine and coastal waters under the ...
12
J. Braz. Chem. Soc. vol.24 número11
... A solid phase extraction method based on magnetic iron oxide nanoparticles (MIONPs) modified by sodium dodecyl sulfate (SDS) was developed for the preconcentration and determination of trace amounts ...
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J. Braz. Chem. Soc. vol.25 número7
... matrix solid-phase dispersion (MSPD) method for the simultaneous HPLC analysis of furanocoumarins from fruits of Archangelica officinalis ...assisted extraction with solid-phase ...
6
J. Braz. Chem. Soc. vol.21 número4
... for solid-phase extraction of acephate, chlorpropham, pirimicarb, bifenthrin, tetradifon and phosalone from the medicinal plant Cordia salicifolia, using gas chromatography-mass spectrometry with ...
6
Quím. Nova vol.32 número6
... by solid phase extraction (SPE) was introduced in the 1970’s and had good commercial progress with the development of cartridges and disks for ...
4
J. Braz. Chem. Soc. vol.21 número8
... This study reports a simple, relatively fast, and eficient SPE and LC-ESI-MS-MS method which was developed to determine eighteen pesticides from different classes (herbicides, insecticides and fungicides) and two ...
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FOLATE DETERMINATION IN CASHEW APPLE JUICE METHOD DEVELOPMENT AND VALIDATION
... mobile phase, making the quantification procedure laborious and ...on Solid Phase Extraction (SPE), followed by separation by high performance liquid chromatography was developed and validated ...
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