Results 21 to 30 of about 4,484,038 (290)
Advances in Sample Preparation, 2022 Vacuum-assisted headspace solid phase microextraction (Vac-HSSPME) with high temperature of extraction was used for source-rock analysis. Optimization of extraction conditions was performed by Doehlert experimental design (DD) in gas chromatography ...
Breno J. Pollo +4 more
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Atomic spectrometry update. Clinical and biological materials, foods and beverages [PDF]
, 2013 This review discusses developments in elemental mass spectrometry, atomic absorption, emission and fluorescence, XRF and LIBS, as applied to the analysis of specimens of clinical interest, foods and beverages.
Day, Martin P. +5 more
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Application of solid-phase microextraction in atomic spectrometry
Advances in Sample Preparation, 2022 With the growing requirements for the monitoring of heavy metals at an ultra-trace level in the environment and the real-time detection of toxic elements and their compounds for environmental pollution accidents, researchers devoted significant efforts ...
Yubin Su +3 more
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Advances in Sample Preparation, 2022 In the present study, a new chip was designed for simultaneous electromembrane extraction (EME) of acidic and basic analytes. The method followed by the HPLC-UV analysis, was used for simultaneous extraction and determination of trace amounts of target ...
Zohre Hashemlou +2 more
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A review of sample preparation and its influence on pH determination in concrete samples [PDF]
, 2017 If we are to monitor the chemical processes in cementitious materials, then pH assays in the pore solutions of cement pastes, mortars, and concretes are of key importance.
Aguado de Cea, Antonio +1 more
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A comprehensive review on the use of microextraction techniques in the analysis of cosmetic products
Advances in Sample Preparation, 2022 Microextraction techniques have gained special relevance since their appearance in the 90s, and the analysis of cosmetic products has not been immune to this trend.
Lorenza Schettino +3 more
doaj +1 more source
Uncertainties of size measurements in electron microscopy characterization of nanomaterials in foods [PDF]
, 2015 Electron microscopy is a recognized standard tool for nanomaterial characterization, and recommended by the European Food Safety Authority for the size measurement of nanomaterials in food.
Boxall, A. B. A. +6 more
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A Tutorial on AGREEprep an Analytical Greenness Metric for Sample Preparation
Advances in Sample Preparation, 2022 Sample preparation is a key step in the analytical procedure and a critical component for achieving analytical greenness. AGREEprep is the first metric intended for evaluating the environmental impact of sample preparation methods.
Francisco Pena-Pereira +3 more
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Advances in Sample PreparationPipette tip-electrospray is a useful technique that synergically combines sample preparation and ambient ionization mass spectrometry for the rapid analysis of samples.
Jaime Millán-Santiago +2 more
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An effective palynological preparation procedure using hydrogen peroxide [PDF]
, 2007 Most pre-Quaternary palynology samples are currently prepared by demineralization of the sediment/sedimentary rock matrix using hydrochloric and hydrofluoric acids (HCl and HF respectively).
Kyffin-Hughes, Jane E. +2 more
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