Results 81 to 90 of about 12,813,256 (268)

Recent applications of tetramethylammonium hydroxide (TMAH) in the sample preparation for elemental analysis by spectroanalytical techniques

Advances in Sample Preparation
Application of tetramethylammonium hydroxide for the treatment of samples prior to elemental analysis over the last five years is approached in this review article.
Uillian Mozart Ferreira Mata Cerqueira, Juscelia Pereira Santos Alves, Walter Nei Lopes Santos, Bernardo da Silva Pita, Cleber Galvão Novaes, Sulene Alves Araújo, Marcos Almeida Bezerra   +6 more
doaj  

Preparation and Extraction of Samples Prior to Pesticide Residue Analysis [PDF]

, 1965
Wayne Thornburg
openalex   +1 more source

Integrated microfluidic systems with sample preparation and nucleic acid amplification.

Lab on a Chip, 2019
Rapid, efficient and accurate nucleic acid molecule detection is important in the screening of diseases and pathogens, yet remains a limiting factor at point of care (POC) treatment.
Juxin Yin, Yuanjie Suo, Zheyu Zou, Jingjing Sun, Shan Zhang, Ben Wang, Yawei Xu, D. Darland, J. Zhao, Y. Mu   +9 more
semanticscholar   +1 more source

Assessing the potentialities of an easy-to-use sample treatment strategy: Multivariate investigation on “Moka extraction” of typical ingredients from dietary supplements

Advances in Sample Preparation
Mr. Bialetti invented Moka in 1933 and it still represents the most common way to prepare coffee at home. The process through which Mokas extract components from the ground coffee is a solid-liquid extraction which occurs at high pressure and temperature.
Matteo Baglietto, Barbara Benedetti, Marina Di Carro, Emanuele Magi   +3 more
doaj  

Life cycle assessment of sample preparation in analytical chemistry: a case study on SBSE and SPE techniques

Advances in Sample Preparation, 2022
In the past twenty years, green analytical chemistry has gained more and more attention. However, the environmental impacts of analytical methods have never been quantified.
Bastien Raccary, Philippe Loubet, Christophe Peres, Guido Sonnemann   +3 more
doaj  

Surface barrier and bulk pinning in MgB$_2$ superconductor [PDF]

arXiv, 2001
We present a modified method of preparation of the new superconductor MgB$_2$. The polycrystalline samples were characterized using x-ray and magnetic measurements. The surface barriers control the isothermal magnetization loops in powder samples. In bulk as prepared samples we always observed symmetric magnetization loops indicative of the presence of
arxiv  

Elution Column Preparation of Leaf Sample for Flame Photometry. I. Determination of Potassium in Tobacco [PDF]

, 1961
James T. Dobbins
openalex   +1 more source

Advances in sample preparation for volatile profiling of plant proteins: Fundamentals and future perspectives

Advances in Sample Preparation
Due to the increasing world population and consumer desire for sustainable and nutritious protein sources, the food industry is currently experiencing tremendous pressure to develop innovative, sensorially acceptable, health-promoting plant-based ...
Wellington da Silva Oliveira, Igor Shepelev, Fernanda F.G. Dias, Gary A. Reineccius   +3 more
doaj  

Microextraction columns for automated sample preparation. A review focusing on fully miniaturized column switching and bioanalytical applications

Advances in Sample Preparation, 2022
Column switching (CS) emerged as a strategy for direct injection of raw biological samples and currently is the more versatile technique for the fully automated integration of the sample preparation and the chromatography analysis.
Deyber Arley Vargas Medina, Douglas Morisue Sartore, Edvaldo Vasconcelos Soares Maciel, Álvaro José Santos-Neto, Fernando Mauro Lanças   +4 more
doaj  

A preliminary study of small-mass radiocarbon sample measurement at Xi'an-AMS [PDF]

arXiv, 2014
To meet the measurement demands on small-mass radiocarbon (carbon content at 10-6g level) which are becoming increasingly significant. Xi'an-AMS has made improvement to the existing method of sample loading and has upgraded the Cs sputter ion source from the original SO-110 model. In order to study the feasibility of small-mass samples in Xi'an-AMS and
arxiv