AIMC Topic: Solid Phase Extraction

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Modified Activated Carbon Prepared from Acorn Shells as a New Solid-Phase Extraction Sorbent for the Preconcentration and Determination of Trace Amounts of Nickel in Food Samples Prior to Flame Atomic Absorption Spectrometry.

Journal of AOAC International Nov 17, 2016
A new solid-phase extraction (SPE) sorbent was introduced based on acidic-modified (AM) activated carbon (AC) prepared from acorn shells of native oak trees in Kurdistan. Hydrochloric acid (15%, w/w) and nitric acid (32.5%, w/w) were used to conditio...
Temperature Charcoal Nickel Hydrogen-Ion Concentration Spectrophotometry, Atomic Solid Phase Extraction Mentha Spinacia oleracea Brassica Quercus
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Selective solid-phase extraction using molecularly imprinted polymer as a sorbent for the analysis of fenarimol in food samples.

Food chemistry Dec 29, 2015
In the present communication, a non-covalent fenarimol-imprinted polymer was synthesized by precipitation polymerization technique using methacrylic acid (MAA) as a functional monomer, ethylene glycol dimethacrylate (EGDMA) as a cross-linker, and azo...
Polymers Pyrimidines Solid Phase Extraction Food Quality Molecular Imprinting
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Derivatization of estrogens enhances specificity and sensitivity of analysis of human plasma and serum by liquid chromatography tandem mass spectrometry.

Talanta Dec 29, 2015
Estrogens circulate at concentrations less than 20pg/mL in men and postmenopausal women, presenting analytical challenges. Quantitation by immunoassay is unreliable at these low concentrations. Liquid chromatography tandem mass spectrometry (LC-MS/MS...
Estrone Premenopause Benzenesulfonates Chromatography, Liquid Tandem Mass Spectrometry Solid Phase Extraction Spectrometry, Mass, Electrospray Ionization Postmenopause Pyridinium Compounds Humans Adult Female Middle Aged Male Reproducibility of Results Estradiol Aged Estrogens Aged, 80 and over Young Adult
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Quantitative analysis of maytansinoid (DM1) in human serum by on-line solid phase extraction coupled with liquid chromatography tandem mass spectrometry - Method validation and its application to clinical samples.

Journal of pharmaceutical and biomedical analysis Dec 22, 2015
A sensitive and specific method was developed and validated for the quantitation of maytansinoid (DM1) in human serum using on-line solid phase extraction (SPE)-liquid chromatography-tandem mass spectrometry (LC-MS/MS). Because DM1 contains a free th...
Humans Reproducibility of Results Tandem Mass Spectrometry Solid Phase Extraction Maytansine Neoplasms Chromatography, Liquid Infusions, Intravenous
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Large volume preconcentration and determination of nanomolar concentrations of iron in seawater using a renewable cellulose 8-hydroquinoline sorbent microcolumn and universal approach of post-column eluate utilization in a Lab-on-Valve system.

Talanta Dec 18, 2015
We report on a Lab-On-Valve (LOV) configuration for analyte preconcentration from milliliter sample volumes using confluent mixing in the holding coil for in-line addition of loading buffer. The system was applied to the spectrophotometric determinat...
Reproducibility of Results Cellulose Hydrogen-Ion Concentration Solid Phase Extraction Buffers Limit of Detection Color Iron Chelating Agents Phenanthrolines Oxyquinoline Seawater Analytic Sample Preparation Methods
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Liquid chromatography quadrupole time-of-flight mass spectrometry selective determination of ochratoxin A in wine.

Food chemistry Dec 9, 2015
The performance of liquid chromatography quadrupole time-of-flight mass spectrometry (LC-QTOF-MS) for ochratoxin A (OTA) determination in wine is evaluated for the first time. Sample preparation was optimized to obtain quantitative recoveries at the ...
Ochratoxins Chromatography, Liquid Wine Solid Phase Extraction Mass Spectrometry
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Choline Proline Ionic Liquid-Functionalized FeO@SiO Nanoparticle Magnetic Solid Phase Extraction Coupled with High-Performance Liquid Chromatography for Analysis of Allura Red in Lipstick Sample.

Journal of cosmetic science Jan 1, 2021
A separation/analysis of allura red based on magnetic solid-phase extraction-high-performance liquid chromatography was developed. The extractant was prepared by functionalizing choline proline ionic liquid on FeO@SiO(FeO@SiO@[Ch][Pro]). Infl uences ...
Solid Phase Extraction Nanoparticles Azo Compounds Ionic Liquids Limit of Detection Choline Silicon Dioxide Proline Magnetic Phenomena Chromatography, High Pressure Liquid
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[Determination of eight environmental phenols in human urine samples by high-throughput solid-phase extraction-ultra-performance liquid chromatography-tandem mass spectrometry].

Se pu = Chinese journal of chromatography Dec 8, 2020
A method combining 96-well plate solid-phase extraction with ultra-performance liquid chromatography-tandem mass spectrometry (96-well SPE LC-MS/MS) was developed for the simultaneous determination of eight environmental phenols in urine samples. The...
Tandem Mass Spectrometry Humans Solid Phase Extraction Phenols High-Throughput Screening Assays Chromatography, High Pressure Liquid
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[Simultaneous determination of four opioids in urine by solid-phase extraction and derivatization coupled with gas chromatography-mass spectrometry].

Se pu = Chinese journal of chromatography Nov 8, 2020
Police officers currently use the colloidal gold rapid testing method to detect heroin in the urine of drug abusers, but the results are often rendered erroneous due to the presence of antitussive drugs, which contain opioids. The traditional manual ...
Codeine Humans Morphine Limit of Detection Solid Phase Extraction Analgesics, Opioid Gas Chromatography-Mass Spectrometry
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[Rapid screening and determination of fentanyl and its analogues in drugs by liquid chromatography- quadrupole time-of-flight mass spectrometry].

Se pu = Chinese journal of chromatography Aug 8, 2020
A method based on liquid chromatography coupled with high-resolution quadrupole time-of-flight mass spectrometry (LC-QTOF-MS) was developed for the simultaneous screening and determination of fentanyl and its 26 analogs in liquid and solid powder dru...
Pharmaceutical Preparations Tandem Mass Spectrometry Solid Phase Extraction Fentanyl Chromatography, High Pressure Liquid
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