Results 71 to 80 of about 63,191 (286)

Optimization of Saponification Process for Quantification of Individual and Total Tocopherols and Phytosterols in Canola Oil Refining By‐Products

open access: yesJournal of the American Oil Chemists' Society, EarlyView.
ABSTRACT In this study, saponification variables were optimized using a face‐centred central composite design‐response surface methodology. The variables included reaction temperature (50°C–120°C), reaction time (30–180 min), KOH concentration (0.5–3 M) and pyrogallol concentration (0–1% w/v).
Milad Kazemi   +4 more
wiley   +1 more source

Comparison of the extractability of organophosphorus flame retardants in landfill media using organic and green solvents

open access: yesScientific Reports, 2022
Organic solvents are mainly used in the extraction of organophosphorus flame retardants (OPFRs) because of their availability and having been tested as good extracting solvents for most environmental pollutants.
Innocentia Velaphi Sibiya   +1 more
doaj   +1 more source

Seasonal Fluctuations of Plastochromanol‐8 and α‐Tocopherol Amounts in the Leaves of Cecropia Trees

open access: yesJournal of the American Oil Chemists' Society, EarlyView.
ABSTRACT Plastochromanol‐8 (PC‐8) is a homologue of γ‐tocotrienol with a longer side chain (eight instead of three isoprene units) and therefore also a representative of the tocochromanol (vitamin E) group. PC‐8 has been determined in various plants and seeds, with Cecropia sp. leaves showing unusually high levels.
Rosalie Ormos, Jörg Rau, Walter Vetter
wiley   +1 more source

Correlation coefficient (r), linear range, LOD and LOQ for the tri-marker compounds.

open access: yes, 2016
Correlation coefficient (r), linear range, LOD and LOQ for the tri-marker compounds.
Yong Guo (169213)   +2 more
core   +1 more source

Development and Validation of a Cellulose‐Coated Stir Bar Sorptive Extraction Method for a Simple, Environmentally Friendly Approach to Measuring Free Glycerol in Biodiesel

open access: yesJournal of the American Oil Chemists' Society, EarlyView.
Preparation of a highly porous cellulose‐coated stir bar for the selective, environmentally friendly extraction of free glycerol from biodiesel using the SBSE method, followed by HPLC‐DAD analysis of the extract after derivatization with benzoyl chloride.
Caroline Lopes da Silva   +3 more
wiley   +1 more source

Population pharmacokinetics of levofloxacin in breastmilk in patients with rifampicin‐resistant tuberculosis

open access: yesBritish Journal of Clinical Pharmacology, EarlyView.
Levofloxacin is a widely used antibiotic included in rifampicin‐resistant tuberculosis (RR‐TB) treatment. Data describing levofloxacin concentrations in breastmilk and infant exposure are limited. We analysed data from two South African studies of breastfeeding women receiving levofloxacin (750–1000 mg daily) for RR‐TB.
Sharon Sawe   +9 more
wiley   +1 more source

Unlocking the potential of NMR spectroscopy for precise and efficient quantification of microplastics

open access: yesMicroplastics and Nanoplastics
Precise, fast, and reliable identification and quantification of microplastic contamination are essential for determining their environmental concentrations for risk assessments.
Julia Schmidt   +3 more
doaj   +1 more source

Limits of detection (LOD) and quantification (LOQ) of marker compounds 1–12.

open access: yes, 2014
a) The calibration curves were constructed by plotting the peak areas versus the concentration of each analyte.b) LOD refers to the limit of detection.c) LOQ refers to the limit of quantification.Limits of detection (LOD) and quantification (LOQ) of ...
Pyare Lal Sangwan (644198)   +8 more
core   +1 more source

Development of a nalmefene formulation suitable for a community‐use auto‐injector

open access: yesBritish Journal of Clinical Pharmacology, EarlyView.
Aim Time to onset of reversal is critical when treating opioid‐induced respiratory depression and hypoxia. This study aimed to develop a formulation of the opioid antagonist nalmefene with an increased absorption rate and reduced time to onset of reversal following intramuscular administration. Methods Several absorption enhancers were screened in rats,
Alessandra Cipriano   +6 more
wiley   +1 more source

Magnetoelastic Cell Monitoring System for Evaluating the Effects of Surface Chemistry on the Performance of Mesenchymal Stem Cell Growth

open access: yesBiotechnology and Bioengineering, EarlyView.
ABSTRACT The recent clinical adoption of cell therapies has increased the need for more efficient, robust, and reproducible manufacturing technologies. Human mesenchymal stromal cells (hMSCs), a major component of the cell and immunotherapeutic market, remain challenging to manufacture at scale because they require surface attachment and are highly ...
William S. Skinner   +7 more
wiley   +1 more source

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