Results 41 to 50 of about 67,993 (297)

UHPLC-MS/MS progestin quantification methods. [PDF]

, 2023
Progestin-only injectable contraceptives, mainly depo-medroxyprogesterone acetate intramuscular (DMPA-IM), are the most widely used contraceptive methods in sub-Saharan Africa.
Ivana Beesham (9215217), Ishen Seocharan (12902312), Mags Beksinska (3141801), Yusentha Balakrishna (5797361), Joanne Batting (12770286), Pai-Lien Chen (565932), Sigcinile Dlamini (17696894), Chanel Avenant (409756), Salndave B. Skosana (17696891), Johnson Mosoko Moliki (17696897), Jenni Smit (325817), Mandisa Singata-Madliki (14137326), Alexis J. Bick (5146736), Donita Africander (565922), Janet P. Hapgood (409759), G. Justus Hofmeyr (11134927), Karl-Heinz Storbeck (3152742)   +16 more
core   +1 more source

CPM RRt 0.80 szennyező előállításának optimalizálása [PDF]

, 2022
A szakdolgozatom elkészítése során egy gyógyszerhatóanyag szennyező előállításának optimalizálási folyamatát végeztem el. Feladatom az volt, hogy olyan reakciókörülményeket találjak, amelyek között magas hozammal keletkezik meg ez a szennyező.
Berza, Dóra
core  

New trends in liquid chromatography and their utilization in analysis of beer and brewery raw materials. Part 2. Determination of cis/trans- isomers -iso-α-acids in beer using Ultra Performance Liquid Chromatography.

Kvasný průmysl, 2012
The Ultra High Performance Liquid Chromatography (UHPLC), which uses the principle of separation on sub-2 μm particles, was tested for the separation and determination of steric forms of iso-α-acids in beer.
Jana OLŠOVSKÁ, Marie JURKOVÁ, Pavel ČEJKA   +2 more
doaj   +1 more source

Chemotaxonomic Markers for the Leaf Buds of Common Finnish Trees and Shrubs: A Rapid UHPLC MS Fingerprinting Tool for Species Identification

Molecules, 2022
In this study, a chemotaxonomic tool was created on the basis of ultra-high-performance liquid chromatography–mass spectrometry (UHPLC–MS) for the identification of 13 common Finnish deciduous trees and shrubs from their leaf bud metabolites.
Marianna Manninen, Maarit Karonen, Juha-Pekka Salminen   +2 more
doaj   +1 more source

UHPLC-ESI-QTOF-MS analysis of the main metabolites in the culture medium of L. theobromae strain 2334. [PDF]

, 2016
L. theobromae strain 2334 was cultivated in medium supplemented with KNO3 for 9 d. After extraction, compounds of the culture filtrate were analyzed via UHPLC-ESI-QTOF-MS.
Till Ischebeck (111642), Dorothea Meldau (3372623), Dmitrij Rekhter (3372626), Kirstin Feussner (94443), Florian Brodhun (417109), Ivo Feussner (94445), Felipe Eng (3372629), Sven Haroth (3147774)   +7 more
core   +1 more source

The consistency of vitamin B12 in marketed microalgae powders

International Journal of Agricultural Research, Innovation and Technology
Vitamin B12 is a water nutrient that plays a key role, in DNA replication and the production of red blood cells as well as maintaining proper neuron function in the body system.
Md. Mirazul Islam
doaj   +1 more source

Determination of Antiviral Drugs and Their Metabolites Using Micro-Solid Phase Extraction and UHPLC-MS/MS in Reversed-Phase and Hydrophilic Interaction Chromatography Modes

Molecules, 2021
Two new ultra-high performance liquid chromatography (UHPLC) methods for analyzing 21 selected antivirals and their metabolites were optimized, including sample preparation step, LC separation conditions, and tandem mass spectrometry detection.
Luboš Fical, Maria Khalikova, Hana Kočová Vlčková, Ivona Lhotská, Zuzana Hadysová, Ivan Vokřál, Lukáš Červený, František Švec, Lucie Nováková   +8 more
doaj   +1 more source

New trends in liquid chromatography and their utilization in analysis of beer and brewery raw materials. Part 1. Theoretical introduction.

Kvasný průmysl, 2012
In connection with increasing requirements on high throughput analyses in the laboratories the instrumental techniques undergo continuous improvement.
Jana OLŠOVSKÁ, Marie JURKOVÁ
doaj   +1 more source

UHPLC-MS/MS for plasma lamotrigineanalysis and comparison with a homogenousenzyme immunoassay: supplementary data [PDF]

Aims: To develop and validate a UHPLC-MS/MS method for lamotrigine (LTG) analysis in human plasmaand evaluate its agreement with a homogenous enzyme immunoassay (HEIA).
Xiaoxu Shi (8560299), Shenghui Mei (3478874), Dongjie Zhang (2410159), Zhigang Zhao (288127)   +3 more
core   +1 more source

The stability and degradation kinetics of acetylsalicylic acid in different organic solutions revisited – an UHPLC–ESI-QTOF spectrometry study

Current Issues in Pharmacy and Medical Sciences, 2016
Ultra high performance liquid chromatography (UHPLC), coupled with accurate quadrupole-time-of-flight (Q-TOF) mass spectrometry, was used for the stability study of acetylsalicylic acid within a variety of different organic solutions: methanol, ethanol ...
Skibinski Robert, Komsta Lukasz
doaj   +1 more source