Results 21 to 30 of about 590,102 (248)

Simultaneous determination of amoxicillin and clavulanic acid in the human plasma by high performance liquid chromatography: Mass spectrometry (UPLC/MS) [PDF]

Vojnosanitetski Pregled, 2010
Background/Aim. Quantitative analysis of amoxicillin and clavulanic acid in biological matrices requires sensitive and specific methods which allow determination of therapeutic concentration in μg/mL range.
Ćirić Biljana, Jandrić Dušan, Kilibarda Vesna, Jović-Stošić Jasmina, Dragojević-Simić Viktorija, Vučinić Slavica   +5 more
doaj   +1 more source

Characterization of a tetrameric proanthocyanidin in Stryphnodendron pulcherrimum and an overview on potential health benefits of condensed tannins via interaction with gut microbiota

Journal of Functional Foods, 2023
Stryphnodendron pulcherrimum is a plant found in the Brazilian Amazon and contains high content of catechin/(epi)catechin (flavan-3-ol) derivatives. The polymerization of this kind of flavan-3-ol generates condensed tannins, often associated to plant ...
Paulo Wender P. Gomes, Emilli Roberta S. Gomes, Alice R.V. Carvalho, Helena Mannochio-Russo, Tiago F. Leão, José Diogo E. Reis, Maria Rosilda V. de Sarges, Horrana A. Mardegan, Sônia das G.S.R. Pamplona, Consuelo Yumiko Y. e Silva, Milton N. da Silva   +10 more
doaj  

Comparative Analysis of Liquid Chromatography-Tandem Mass Spectrometry and Radioimmunoassay in Determining Plasma Aldosterone Concentration and Plasma Renin Activity for Primary Aldosteronism Screening [PDF]

Endocrinology and Metabolism
Liquid chromatography-tandem mass spectrometry (LC-MS/MS) accurately measures plasma aldosterone concentration (PAC), but its correlation with radioimmunoassay (RIA), equivalent RIA levels, and optimal cutoff for PAC and aldosterone-to-renin ratio (ARR ...
So Yoon Kwon, Kyeong-Jin Kim, Soo-Youn Lee, Jae Hyeon Kim   +3 more
doaj   +1 more source

Study of Histamine Detection using Liquid Chromatography and Gas Chromatography

ASM Science Journal, 2021
Histamine is a heterocyclic amine shaped by decarboxylation of the histidine. It is a compound that lack chromophore and involatile. However, the detection of histamine is imperative due to the characteristic of histamine has given several disadvantages ...
Muhammad Abdurrahman Munir, Muhammad Mukram Mohamed Mackeen, Lee Yook Heng, Khairiah Haji Badri   +3 more
doaj   +1 more source

A comparative review on High-Performance Liquid Chromatography (HPLC), Ultra Performance Liquid Chromatography (UPLC) & High-Performance Thin Layer Chromatography (HPTLC) with current updates

Current Issues in Pharmacy and Medical Sciences, 2022
Any chosen analytical method should be subtle, precise, fast and exact to begin the guarantee that the material used in the manufacturing is free of unsolicited impurity, the existence of which may vary the safety and effectiveness of the drug product ...
Gupta Manish Kumar, Ghuge Aditya, Parab Manasi, Al-Refaei Yehya, Khandare Anjali, Dand Neha, Waghmare Nilkamal   +6 more
doaj   +1 more source

Characterization of Balsamic Vinegars Using High-Performance Liquid Chromatography and Gas Chromatography

Applied Sciences, 2022
Vinegars are natural products manufactured by two-step fermentation. One of the most famous is balsamic vinegar, especially that produced in Modena, Italy. Its unique production process positively distinguishes it from other vinegars. There are basically
Michal Kašpar, Petr Česla
doaj   +1 more source

TRIGLYCERIDES | Liquid Chromatography

, 2000
Peer ...
Ruiz-Gutiérrez, Valentina, Perona, Javier S.   +1 more
openaire   +3 more sources

Multidimensional Chromatography and Its Applications in Food Products, Biological Samples and Toxin Products: A Comprehensive Review

Separations, 2022
Food, drugs, dyes, extracts, and minerals are all made up of complex elements, and utilizing unidimensional chromatography to separate them is inefficient and insensitive.
Ruhul Amin, Faruk Alam, Biplab Kumar Dey, Jithendar Reddy Mandhadi, Talha Bin Emran, Mayeen Uddin Khandaker, Sher Zaman Safi   +6 more
doaj   +1 more source

In vivo evidence for glycyl radical insertion into a catalytically inactive variant of pyruvate formate‐lyase

FEBS Letters, EarlyView.
Dimeric pyruvate formate‐lyase cleaves pyruvate using a radical‐based mechanism. G734 serves as a radical storage location, and the radical is transferred to the catalytic C419 residue. Mutation of the C418‐C419 pair causes loss of enzyme activity, but does not impede radical introduction onto G734. Therefore, cis‐ but not trans‐radical transfer occurs
Michelle Kammel, A. F. Volker Wagner, R. Gary Sawers   +2 more
wiley   +1 more source

Easy Computation of the Various Topologies and Modes of Liquid–Liquid Partition Chromatography by the Theory of Random Walks

Separations, 2021
The article revisits the discrete recurrence method to model the instruments of liquid–liquid partition chromatography as counter-current chromatography (CCC) and centrifugal partition chromatography (CPC).
Frédéric R. Dijoux, Tsvetelina Mandova
doaj   +1 more source