Results 1 to 10 of about 470,573 (297)

Development of a Pure Certified Reference Material of D-Mannitol [PDF]

Molecules, 2023
A new certified reference material (CRM) of D-mannitol (GBW(E) 100681) has been developed in this study. We describe the preparation, structure determination, characterization, homogeneity study, stability study, as well as uncertainty estimation.
Weizhu Chen, Yiping Zhang, Hui Chen, Wenhui Jin, Xiaoying Chen, Xiaoyan Huang, Yanrou Xie, Hua Fang, Zhuan Hong   +8 more
doaj   +3 more sources

Development of Pure Certified Reference Material of Cannabidiol

Molecules
Cannabidiol (CBD) is the major functional component in hemp and has a broad range of pharmacological applications, such as analgesic, anti-epileptic, anti-anxiety, etc. Currently, CBD is widely used in pharmaceuticals, cosmetics, and food.
Congcong Yu, Ruihan Long, Feng Cao, Xinying Zhao, Tao Lan, Dunming Xu   +5 more
doaj   +4 more sources

Global certified-reference-material- or reference-material-scaled nutrient gridded dataset GND13 [PDF]

Earth System Science Data, 2020
A global nutrient gridded dataset that might be the basis for studies of more accurate spatial distributions of nutrients in the global ocean was created and named GND13.
M. Aoyama
doaj   +2 more sources

First amyloid β1-42 certified reference material for re-calibrating commercial immunoassays. [PDF]

Alzheimers Dement, 2020
Reference materials based on human cerebrospinal fluid were certified for the mass concentration of amyloid beta (Aβ)1‐42 (Aβ42). They are intended to be used to calibrate diagnostic assays for Aβ42.
Boulo S, Kuhlmann J, Andreasson U, Brix B, Venkataraman I, Herbst V, Rutz S, Manuilova E, Vandijck M, Dekeyser F, Bjerke M, Pannee J, Charoud-Got J, Auclair G, Mazoua S, Pinski G, Trapmann S, Schimmel H, Emons H, Quaglia M, Portelius E, Korecka M, Shaw LM, Lame M, Chambers E, Vanderstichele H, Stoops E, Leinenbach A, Bittner T, Jenkins RG, Kostanjevecki V, Lewczuk P, Gobom J, Zetterberg H, Zegers I, Blennow K.   +35 more
europepmc   +2 more sources

Development of a Purity Certified Reference Material for Vinyl Acetate [PDF]

Molecules, 2023
Vinyl acetate is a restricted substance in food products. The quantification of the organic impurities in vinyl acetate is a major problem due to its activity, instability, and volatility.
Chen He, Qin Gao, Changwen Ye, Guotao Yang, Pengfei Zhang, Rongchao Yang, Qing Zhang, Kang Ma   +7 more
doaj   +2 more sources

Benzene: A critical review on measurement methodology, certified reference material, exposure limits with its impact on human health and mitigation strategies. [PDF]

Environ Anal Health Toxicol
Benzene is a carcinogenic pollutant with significant emission sources present in the atmosphere. The need for accurate and precise measurement of benzene in the atmosphere has become increasingly evident due to its toxicity and the adverse health effects
Kumari P, Soni D, Aggarwal SG.
europepmc   +2 more sources

Challenges in the size analysis of a silica nanoparticle mixture as candidate certified reference material. [PDF]

J Nanopart Res, 2016
A new certified reference material for quality control of nanoparticle size analysis methods has been developed and produced by the Institute for Reference Materials and Measurements of the European Commission’s Joint Research Centre.
Kestens V, Roebben G, Herrmann J, Jämting Å, Coleman V, Minelli C, Clifford C, De Temmerman PJ, Mast J, Junjie L, Babick F, Cölfen H, Emons H.   +12 more
europepmc   +2 more sources

Comparison of total and aqua regia extractability of heavy metals in sewage sludge: The case study of a certified reference material.

Trends Analyt Chem, 2017
A number of different digestion methods, including aqua regia extraction following two ISO guides were used in an inter-laboratory comparison study. The results obtained showed comparable values for the total and aqua regia extractable content of As, Cu,
Santoro A, Held A, Linsinger TPJ, Perez A, Ricci M.   +4 more
europepmc   +2 more sources

Development and validation of a method for mercury determination in seawater for the process control of a candidate certified reference material. [PDF]

Anal Bioanal Chem, 2015
A simple, robust and reliable method for mercury determination in seawater matrices based on the combination of cold vapour generation and inductively coupled plasma mass spectrometry (CV-ICP-MS) and its complete in-house validation are described.
Sánchez R, Snell J, Held A, Emons H.
europepmc   +2 more sources

Quantification of arsenolipids in the certified reference material NMIJ 7405-a (Hijiki) using HPLC/mass spectrometry after chemical derivatization. [PDF]

Anal Chem, 2014
Arsenic-containing lipids (arsenolipids) are novel natural products recently shown to be widespread in marine animals and algae. Research interest in these arsenic compounds lies in their possible role in the membrane chemistry of organisms and, because ...
Glabonjat RA, Raber G, Jensen KB, Ehgartner J, Francesconi KA.   +4 more
europepmc   +2 more sources