Results 31 to 40 of about 432,023 (267)

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

MOESM1 of Optimized method for determination of 16 FDA polycyclic aromatic hydrocarbons (PAHs) in mainstream cigarette smoke by gas chromatographyâ mass spectrometry

, 2018
Additional file 1. Details of the chemical standards used for the analysis; MS acquisition parameters for all three GC/MS systems, PAH levels in blank samples together with their respective Limits of Detection (LODs) and Limits of Quantification (LOQs) as well as repeatability and accuracy of fortified Quality Control (QC) samples.
Jeffery, Jana, Carradus, Maria, Songin, Karolina, Pettit, Michael, Pettit, Karl, Wright, Christopher   +5 more
openaire   +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

MOESM1 of Steam distillation/drop-by-drop extraction with gas chromatographyâ mass spectrometry for fast determination of volatile components in jujube (Ziziphus jujuba Mill.) extract

, 2017
Additional file 1. Data about the performance of the SDE method.
Shi-Hao Sun, Guo-Bi Chai, Li, Peng, Xie, Jian-Ping, Su, Yue   +4 more
openaire   +1 more source

Carbon isotopic (C-13 and C-14) composition of synthetic estrogens and progestogens [PDF]

, 2012
RATIONALE: Steroids are potent hormones that are found in many environments. Yet, contributions from synthetic and endogenous sources are largely uncharacterized.
Aelion, Atkinson, Becchi, Beck, Boothby, Braga, Buisson, Caldwell, Chikaraishi, Coplen, Coppen, Cornet, Djerassi, Eglinton, Elsner, Flenker, Haubert, Ingalls, Isobe, Jasper, Johnson, Johnson, Kolpin, Krueger, Kumar, Levin, Liu, Morgan, Mortensen, Nakamura, O'Leary, Pataki, Philp, Piper, Piper, Reddy, Reddy, Reddy, Reddy, Robinson, Ruff, Schmidt, Sheesley, Smith, Sobolevskii, Strahm, Stuiver, Stuiver, Synal, Torre, Ueki, Wacker, Wacker, Whiticar, Wiechert, Yeh   +55 more
core   +2 more sources

Honey volatiles as a fingerprint for botanical origin: a review on their occurrence on monofloral honeys [PDF]

, 2020
Honeys have specific organoleptic characteristics, with nutritional and health benefits, being highly appreciated by consumers, not only in food but also in the pharmaceutical and cosmetic industries. Honey composition varies between regions according to
Figueiredo, Ana Cristina, Machado, Alexandra M., Miguel, Maria, Vilas-Boas, Miguel   +3 more
core   +1 more source

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

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

Chemical analysis of racing fuels using total vaporization and gas chromatography mass spectrometry (GC/MS) [PDF]

, 2016
The National Hot Rod Association (NHRA) is the governing body of North American drag racing. As a supervisory agency, NHRA monitors racing fuels for regulatory purposes and quality control.
Bors, Dana, Goodpaster, John
core   +1 more source

Clinical Application of Steroid Profiles and Their Interpretation in Adrenal Disorders

Diagnostics
Serum and urinary steroid profiles are altered in hormone-producing adrenal adenomas, Cushing’s or Conn’s syndrome, or adrenocortical carcinoma. Definitive diagnosis of inherited congenital adrenal hyperplasia is usually accomplished by measuring the ...
Indra Ramasamy
doaj   +1 more source