Results 241 to 250 of about 22,379,061 (281)
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Hydrophilic materials in sample pretreatment

TrAC Trends in Analytical Chemistry, 2017
Abstract Sample pretreatment is a fundamental and essential step in almost all analytical procedures, especially for the analysis of biological and environmental samples with complex matrix. In the past decades, with the development of hydrophilic interaction liquid chromatography (HILIC) in the separation of polar compounds, hydrophilic materials ...
Bi-Feng Yuan   +3 more
openaire   +2 more sources

Evaluation of FASP, SP3, and iST Protocols for Proteomic Sample Preparation in the Low Microgram Range.

Journal of Proteome Research, 2017
Efficient and reproducible sample preparation is a prerequisite for any robust and sensitive quantitative bottom-up proteomics workflow. Here, we performed an independent comparison between single-pot solid-phase-enhanced sample preparation (SP3), filter-
Malte Sielaff   +6 more
semanticscholar   +1 more source

Sampling Reactive Materials

2017
A reactive material is a material which can undergo further reaction either with itself or another material or compound under environmentally-mediated conditions. Examples of these types of reactions include polymerization, hydrolysis and oxidation. Since these reactions can occur in the workplace under ambient conditions or even on sampling media, the
openaire   +2 more sources

Sampling Potentially Pyritiferous Materials [PDF]

open access: possible, 2013
Since 2006 it has become apparent that a number of properties in the Dublin area are suffering distress as a consequence of expansion of pyritiferous fill placed beneath ground bearing floor slabs. The location and method of sampling and the appropriate storage of the material are important in order to reliably determine whether such expansion has ...
openaire   +1 more source

Sampling of biological materials for infrared spectroscopy

Analytical Biochemistry, 1964
Abstract Various methods for examining the infrared spectra of proteins have been investigated using yeast alcohol dehydrogenase and ribonuclease as typical proteins. These methods include films cast from aqueous solutions, KBr disks, and agar films.
Rosemary L. Boccalatte, Leopold May
openaire   +3 more sources

Review of Best Practice Methods for Determining an Electrode Material's Performance for Ultracapacitors

, 2010
Ultracapacitors are rapidly being adopted for use for a wide range of electrical energy storage applications. While ultracapacitors are able to deliver high rates of charge and discharge, they are limited in the amount of energy stored.
M. Stoller, R. Ruoff
semanticscholar   +1 more source

Source of the Material and Sample Collection

1984
The material investigated mainly comes from the humid tropical forest in Venezuelan Guiana where an inventory was initiated by the Ministry of.‘Agricultura y Cria’ (MAC) of Venezuela together with the Food and Agriculture Organization (FAO) and the UNO. In this inventory all arboreous species of this area were statistically covered.
openaire   +2 more sources

Applications of monolithic materials for sample preparation

Journal of Pharmaceutical and Biomedical Analysis, 2014
Recent advances in monolithic columns have made them an alternative to traditional packed columns used in liquid chromatography as well as capillary electrochromatography (CEC). The monolithic columns have been extensively studied and shown to possess several advantages that make them a promising and potential substitute for the particle packed columns.
Paul C. Ho   +2 more
openaire   +3 more sources

A low-frequency sound absorbing material with subwavelength thickness

, 2017
We propose a sound absorbing material efficient for low frequency. This material is mainly composed of two axially coupled tubes in series, which are co-planarly coiled in a plane perpendicular to incident waves.
C. Chen, Z. Du, G. Hu, Jun Yang
semanticscholar   +1 more source

Monolith as a new sample preparation material: recent devices and applications.

Journal of Separation Science, 2011
Monolith was first used as a material for chromatographic separation two decades ago and solid-phase extraction over 10 years, and since then, separation science has undergone a dramatic change owing to advancements in analytical technology.
A. Namera   +3 more
semanticscholar   +1 more source

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