Results 31 to 40 of about 913,823 (355)

Application of Sorbent-Based Extraction Techniques in Food Analysis

open access: yesMolecules, 2023
This review presents an outline of the application of the most popular sorbent-based methods in food analysis. Solid-phase extraction (SPE) is discussed based on the analyses of lipids, mycotoxins, pesticide residues, processing contaminants and flavor ...
Natalia Drabińska   +3 more
doaj   +1 more source

Development and Validation of HPLC Method for Determination of Crocetin, a constituent of Saffron, in Human Serum Samples [PDF]

open access: yesIranian Journal of Basic Medical Sciences, 2013
Objective(s):The present study reports the development and validation of a sensitive and rapid extraction method beside high performance liquid chromatographic method for the determination of crocetin in human serum. Materials and Methods:The HPLC method
Amir Hooshang Mohammadpour   +5 more
doaj  

Separation of lipid classes by solid phase extraction.

open access: yesJournal of Lipid Research, 1990
A rapid and reliable method for the separation of lipid classes is described using aminopropyl disposable columns. This method is a modification to an existing procedure that allows the separation of both neutral and acidic phospholipid fractions and a ...
HY Kim, N Salem, Jr
doaj   +1 more source

HPTLC assay of nicotine and cotinine in biological samples [PDF]

open access: yes, 2018
This study presents the development of a simple high-performance thin layer chromatography (HPTLC) method for the determination of nicotine and its metabolite cotinine in human plasma and urine.
Baconi, Daniela Luiza   +6 more
core   +1 more source

An on-line solid phase extraction procedure for the routine quantification of urinary methylmalonic acid by liquid chromatography-tandem mass spectrometry [PDF]

open access: yes, 2010
Background: The goal of this study was to develop and to validate an improved isotope-dilution-liquid chromatography-tandem mass spectrometry (LC-MS/MS) method for the quantification of methylmalonic acid (MMA) in urine.
Bolann BJ   +4 more
core   +1 more source

SIDEROPHORES FOR SELECTIVE SOLID PHASE EXTRACTION OF STRATEGIC ELEMENTS [PDF]

open access: yes, 2018
All over the world, industrial mining is leaving contaminated areas and dumps that, although being full of valuable metals, have high concentrations of toxic heavy metals that pollute the environment.
Bravo, Arturo   +7 more
core  

The Fate (Outcome) of Clinically Apparent Single Lesion and Oligofocal Nephroblastomatosis Treated According to SIOP/GPOH Protocols for Wilms Tumor

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background The management of clinically apparent single lesions or oligofocal nephroblastomatosis, a facultative precursor of nephroblastoma, remains debated. Methods We retrospectively analyzed 37 patients with clinically apparent single or oligofocal nephroblastomatosis (two to three lesions per kidney) among 2347 patients registered between
Nils Welter   +17 more
wiley   +1 more source

Applications of micro-fluidic platforms integrating packed stationary phases [PDF]

open access: yes, 2011
To design and fabricate novel centrifugal micro-fluidic platforms integrating packed stationary phases for solid-phase micro-extraction in a wide range of (bio)analytical applications.
Benito-Lopez, Fernando   +8 more
core  

Two-phase wash to solve the ubiquitous contaminant-carryover problem in commercial nucleic-acid extraction kits [PDF]

open access: yes, 2020
The success of fundamental and applied nucleic acid (NA) research depends on NA purity, but obtaining pure NAs from raw, unprocessed samples is challenging.
Ismagilov, Rustem F.   +2 more
core  

Two Faces of NOTCH1 in Childhood Lymphoblastic T‐Cell Neoplasia: Prognostic Divergence of Mutational and Structural Aberrations

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT In pediatric patients, T‐cell lymphoblastic lymphoma (T‐LBL) survival exceeds 80%. Relapse remains associated with limited curative options. Frontline treatment is largely extrapolated from T‐cell acute lymphoblastic leukemia (T‐ALL) treatment, reflecting the ongoing debate, whether both entities represent distinct diseases or variants within ...
Marie C. Heider   +4 more
wiley   +1 more source

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