Results 1 to 10 of about 4,446,653 (191)

Nylon 6-cellulose composite hosted in a hypodermic needle: Biofluid extraction and analysis by ambient mass spectrometry in a single device

open access: yesJournal of Pharmaceutical Analysis, 2023
This study proposes a hypodermic needle (HN) as a sorbent holder and an electrospray (ESI) emitter, thus combining extraction and analysis in a single device. A novel nylon 6-cellulose (N6-Cel) composite sorbent is proposed to extract methadone from oral
Jaime Millán-Santiago   +2 more
doaj   +1 more source

Paper-based sorptive phases for a sustainable sample preparation

open access: yesAdvances in Sample Preparation, 2023
In recent years, using natural materials to prepare sorbents has been a clear trend in the sample preparation context. This research line is supported by sustainable considerations, as it responds to the tenth principle of Green Analytical Chemistry ...
Marisol González-Bermúdez   +3 more
doaj   +1 more source

VectorMOD: Method for Bottom-Up Proteomic Characterization of rAAV Capsid Post-Translational Modifications and Vector Impurities

open access: yesFrontiers in Immunology, 2021
Progress in recombinant AAV gene therapy product and process development has advanced our understanding of the basic biology of this critical delivery vector.
Neil G. Rumachik   +2 more
doaj   +1 more source

Electromembrane extraction (EME): Fundamentals and applications

open access: yesTalanta Open, 2023
Conventional sample preparation methods are commonly used to ensure the best analytical response of the method. However, these methods still include large solvent and sample consumption, and lengthy operation time, among other drawbacks, contributing to ...
Rafael Oliveira Martins   +3 more
doaj   +1 more source

A sustainable approach for the reliable and simultaneous determination of terpenoids and cannabinoids in hemp inflorescences by vacuum assisted headspace solid-phase microextraction

open access: yesAdvances in Sample Preparation, 2022
Cannabis sativa L. is an intriguing plant that has been exploited since ancient times for recreational, medical, textile and food purposes. The plant's most promising bioactive constituents discovered so far belong to the terpenoid and cannabinoid ...
Francesca Capetti   +5 more
doaj   +1 more source

In-tube gel electro-membrane combined with microfluidic paper-based device: A green and miniaturized extraction mode for the chromium speciation

open access: yesAdvances in Sample Preparation, 2022
For the first time, in-tube gel electro-membrane microextraction (IT-G-EME) system followed by microfluidic paper-based analytical devices (µPADs) as a low-cost reading platform was fabricated for the speciation of trivalent chromium (Cr(III)) and ...
Hadi Tabani   +4 more
doaj   +1 more source

Minimal Information About Sample Preparation for Phosphoproteomics [PDF]

open access: yes, 2009
This guideline describes parameters and conditions involved in phosphopeptide sample preparation. It covers from the description and preparation of the cells and tissues to the fractionation and specific enrichment of phosphopeptides for MS analysis. The
David Ovelleiro   +3 more
core   +2 more sources

Synthesis and modification of MIL-101-NH2-based metal organic frameworks for preparation of SPME fibers using sol-gel methodology

open access: yesAdvances in Sample Preparation, 2023
Implementation of metal-organic frameworks (MOFs) in the separation science is attractive for many researchers, nowadays. In this study, three MOFs were synthesized and employed as extractive coating fibers.
Hasan Javanmardi   +3 more
doaj   +1 more source

Quality by design approach with design of experiment for sample preparation techniques

open access: yesAdvances in Sample Preparation, 2023
The quality by design (QbD) based approach has begun to be embedded in various method development. Studies show that with the design of experiment tool, the analysis process has become more efficient, faster, and easier.
Saniye Özcan   +2 more
doaj   +1 more source

Efficient analysis of polycyclic aromatic hydrocarbons by dispersive-µ-solid-phase extraction using silica-based nanostructured sorbent phases coupled to gas chromatography-mass spectrometry

open access: yesAdvances in Sample Preparation, 2023
In this study, SBA-15 mesoporous silica has been investigated as sorbent phase for the extraction and determination of 10 polycyclic aromatic hydrocarbons (PAHs) in environmental water samples for the first time. The extraction step was performed through
Camila Scheid   +5 more
doaj   +1 more source

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