Results 1 to 10 of about 453,529 (334)

Mobile Image Ratiometry: A New Method for Instantaneous Analysis of Rapid Test Strips [PDF]

, 2012
Here we describe Mobile Image Ratiometry (MIR), a new method for the automated quantification of standardized rapid immunoassay strips using consumer-based mobile smartphone and tablet cameras.
Bryan Callahan, Donald C. Cooper, Lee Burnett, Phil Callahan   +3 more
core   +2 more sources

Gas Chromatography-Mass Spectrometry

, 2014
This chapter provides a basic introduction to the technical and practical basics of coupling gas chromatography with mass spectrometry (GC-MS), and it will touch on major applications where GC-MS techniques are essential parts of analytical protocols.
Elena Stashenko, Jairo Ren
  +6 more sources

Pots and lipids: molecular and isotope evidence of the food processing at Maharski prekop

Documenta Praehistorica, 2012
The pottery assemblage from the Maharski prekop site was analysed to obtain insights into vessel use and husbandry practices. Total lipid extracts of pottery samples were subjected to gas chromatography (GC), gas chromatography–mass spectrometry (GC–MS),
Nives Ogrinc, Marinka Gams Petrišič, Dušan Žigon, Andreja Žibrat Gašparič, Mihael Budja   +4 more
doaj   +1 more source

Separation of Oligosaccharides from Lotus Seeds via Medium-pressure Liquid Chromatography Coupled with ELSD and DAD [PDF]

, 2017
peer-reviewedLotus seeds were identified by the Ministry of Public Health of China as both food and medicine. One general function of lotus seeds is to improve intestinal health.
AD Orozco-Cortes, BA Olsen, C Huang, D Feria-Gervasio, D García-Gómez, E Borch, FLY Fong, G Yen, H Kaplan, H Wang, J Li, J Valette, J Yang, Jh Wang, K Nimptsch, M Björklund, M Björklund, M Fernández, M Lv, MT Machado, O Bañuelos, P Hemström, P Weber, PK Mukherjee, R Tabasco, S Challal, S Gusakova, S Wu, T Ignatova, T Ikegami, TCMV Do, W Oleszek, W Zong, X Lu, X Lu, Y García-Curbelo, Y Zhang, YF Zheng, Z Guo, Z Yang   +39 more
core   +1 more source

Ammonia gas: an improved reagent for chemical ionization mass spectrometry of bile acid methyl ester acetates

Journal of Lipid Research, 1981
The ammonia chemical ionization mass spectra of 28 methyl ester acetate derivatives of bile acids and related compounds have been determined by gas-liquid chromatography-mass spectrometry.
B R DeMark, P D Klein
doaj   +1 more source

Gas chromatographic-mass spectrometric analysis of tar compounds formed during pyrolysis of rice husks [PDF]

, 1991
Pyrolysis of agricultural waste to produce fuel gas involves formation of tars as noxious by-products. In this paper the qualitative analysis of tars formed during pyrolysis of rice husks is presented, based on identification by gas chromatography—mass ...
Haanappel, V.A.C., Hovestad, A., Skolnik, V., Stevens, T.W., Visser, R.   +4 more
core   +2 more sources

Analytical characterization of some synthetic cannabinoids, derivatives of indole-3-carboxylic acid [PDF]

, 2013
By means of gas chromatography with high resolution mass spectrometry (GC-HRMS), ultra-high performance liquid chromatography in combination with high resolution tandem mass spectrometry (UHPLC-HRMS), nuclear magnetic resonance spectroscopy (NMR) and ...
Eltsov, O., Melkozerov, V., Nevero, A., Shafran, Y., Shevyrin, V.   +4 more
core   +1 more source

Mechanistic Insights into Alzheimer’s Disease Unveiled through the Investigation of Disturbances in Central Metabolites and Metabolic Pathways

Biomedicines, 2021
Hydrophilic metabolites are closely involved in multiple primary metabolic pathways and, consequently, play an essential role in the onset and progression of multifactorial human disorders, such as Alzheimer’s disease.
Raúl González-Domínguez, Álvaro González-Domínguez, Ana Sayago, Juan Diego González-Sanz, Alfonso María Lechuga-Sancho, Ángeles Fernández-Recamales   +5 more
doaj   +1 more source

Diamondoid diacids ('O4' species) in oil sands process-affected water. [PDF]

, 2013
RATIONALE: As a by-product of oil sands extraction, large volumes of oil sands process water (OSPW) are generated, which are contaminated with a large range of water-soluble organic compounds.
Barrow, Beam, Clemente, Frank, Frank, Grewer, Han, Han, Headley, Headley, Jones, Leishman, Nemba, Rontani, Rowland, Rowland, Rowland, Rowland, Rowland, Scarlett, Waltman, Wang   +21 more
core   +2 more sources

Lipids, pots and food processing at Hočevarica, Ljubljansko barje, Slovenia

Documenta Praehistorica, 2014
 The paper presents the results of lipid analyses of pottery samples from Ho≠evarica (Ljub- ljansko barje, Slovenia). Total lipid extracts were subjected to high temperature gas chromatography (HT-GC), gas chromatography-mass spectrometry (GC-MS) and ...
Nives Ogrinc, Mihael Budja, Doris Potočnik, Andreja Žibrat Gašparič, Dimitrij Mlekuž   +4 more
doaj   +1 more source