Results 81 to 90 of about 9,172,703 (293)

Rapid determination of cadmium in grain by citric acid extraction

Liang you shipin ke-ji, 2020
A new pretreatment method for the determination of cadmium in grain was developed: citric acid extraction method. The basic parameters affecting the citric acid extraction were optimized, and the best pretreatment conditions were obtained.
WU Yan-xiang, ZHOU Ming-hui, ZHANG Jie-qiong, TIAN Wei, CHEN Xi, WANG Song-xue   +5 more
doaj   +1 more source

Development of a certified reference material for the physical properties of the soil clay (loam)

Стандартные образцы, 2019
Introduction. The article presents results of developing a certified reference material for the physical properties of the soil clay (loam). The certified characteristics of the reference material are as follows: moisture content at the liquid limit via ...
I. N. Matveeva, V. V. Tolmachev
doaj   +1 more source

Dynamically Actuated Reconfigurable Topographical Surface Enables Active Control of Implant‐Associated Infections

Advanced Functional Materials, EarlyView.
A dynamically actuated reconfigurable topographical surface (DARTS) integrates contact‐mediated bactericidal nanotopography with programmable mechanical actuation to actively disrupt bacterial biofilms. Dynamic surface reconfiguration enhances bacterial killing and suppresses implant‐associated infections in vivo, providing a new strategy for active ...
Mohammad Asadi Tokmedash, Jihun Lee, J. Scott VanEpps, Sungmin Nam, Jouha Min   +4 more
wiley   +1 more source

Analysis Methods for Development of Standard Reference Material (SRM) Zircon Minerals Synthesis

Indonesian Journal of Chemistry, 2018
The synthesis method of in-house zircon minerals certified reference material (CRM) from Kalimantan (Tumbang Titi), and Bangka has been studied with statistical method of ISO 13528-2008 and ISO 35-2006. Zircon Minerals weighing of 10 kg, and it was dried
Samin Samin, Susanna Tuning Sunanti
doaj   +1 more source

Ligand Assisted Epitaxial Growth of CsPbBr3 Microcrystal Resonators With Record ‐Low Lasing Thresholds

Advanced Functional Materials, EarlyView.
Solution‐based ligand‐assisted epitaxial growth (LAEG) yields high‐quality CsPbBr3 microcrystals on different substrates with superior morphology, passivated surfaces, and high photoluminescence quantum yield. These robust micro‐resonators achieve record‐low room‐temperature lasing thresholds of 7.2 kW·cm−2 and maintain operational stability up to 90 ...
Shuyu Zhou, Viktor Rehm, Zijian Peng, Tomáš Hrbek, Anastasia Barabash, Christoph J. Brabec, Berke Özyalin, Yufei Han, Johannes Böhmer, Johannes Will, Erdmann Spiecker, Klaus Götz, Tobias Unruh, Jędrzej Korczak, Tomasz Story, Felix Hilpert, Olaf Brummel, Jörg Libuda, Iva Matolínová, Wolfgang Heiss   +19 more
wiley   +1 more source

Development of New Series of Certified Reference Materials for Ferrosilicon Magnesium Alloys

This paper presents a practical approach to the production of certified reference materials (CRMs) for ferrosilicon magnesium alloys. These new CRMs are predicted to be used in fast X-ray fluorescence spectrometry (XRF) analysis, which does not require ...
Jadwiga Charasińska, Magdalena Knapik, Jacek Anyszkiewicz, Kjell Blandhol, Tadeusz Gorewoda, Justyna Kostrzewa, Alf Yngve Guldhav, Agata Jakóbik-Kolon, Ewa Jamroz   +8 more
core   +1 more source

Development of certified reference material (CRM) of uranium mass fraction in metallic uranium

Стандартные образцы, 2017
Metallic uranium certified reference material (CRM) has been developed and certified as State certified reference material and Russian 1 class certified material (according to the RF State Standard 8609-2004) within the State system of accounting and ...
I. M. Maksimova, L. A. Karpuk, O. N. Rogozhina, I. B. Nikiforov, E. V. Lapova   +4 more
doaj  

Reaction‐Time pH Stabilization by Poly(acrylic acid) with Ethanol‐Mediated Growth Control for Efficient Hydrothermal Sb2(S,Se)3 Solar Cells

Advanced Functional Materials, EarlyView.
Poly(acrylic acid) acts as a reaction‐time pH buffer during hydrothermal Sb2(S,Se)3 growth through its COOH/COO‐ equilibrium. When combined with ethanol‐regulated growth, this buffering strategy reduces Sb‐O related surface disorder, improves local electronic uniformity and carrier collection, and increases the champion solar‐cell efficiency to 10.25%,
Juhee Lee, Geumha Lim, Wookyung Jeon, Seongju Park, Jinwoo Chu, Yohan Yoon, William Jo, Byungha Shin   +7 more
wiley   +1 more source

Determination of 36 Trace Elements in 56 Chinese National Standard Reference Materials by ICP-MS with Pressurized Acid-Digestion

Yankuang ceshi, 2013
The accuracy of the certified values of the national reference materials plays an important role in instrument calibration, and therefore quality control for analysis data.
LIU Ye, DIWU Chun-rong, LIU Xiao-ming, YUAN Hong-lin   +3 more
doaj  

Preparation of Soil Certified Reference Materials for Heavy Metals in Contaminated Sites

Yankuang ceshi, 2017
In China, the mining district and surrounding areas have been high risk areas for soil pollution by heavy metals. These are also the main areas for environmental monitoring of soil. Unfortunately, soil certified reference materials (CRMs) in which matrix
TIAN Kan, YANG Jun, SUN Zi-jie, ZHOU Yu-min, XING Shu-cai, FENG Yue-peng   +5 more
doaj   +1 more source