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Development of solid phase extraction strategies to minimize the effect of human urine matrix effect on the response of carnitine by UPLC–MS/MS
(Elsevier Science, 2016-11)
A rapid, selective and sensitive ultra-high performance liquid chromatography–tandem mass spectrometry (UPLC–MS/MS) method was developed to determine carnitine in human urine. Solid phase extraction approaches based on the ...
Oxytetracycline and florfenicol concentrations in food-additive premixes authorised for broiler chickens: assessing degree of agreement with manufacturers labelling
(MDPI, 2021)
Antimicrobials premixes are the presentation of choice to administer drugs simultaneously
to groups of animals in intensive husbandry systems that require treatment for pathologies of
bacterial origin. Among the premixes ...
Determinação de fungicidas em sucos de laranja empregando método de extração mini-luke modificado e UPLC-MS/MS
(Universidade Federal de Santa MariaBRQuímicaUFSMPrograma de Pós-Graduação em Química, 2014-03-26)
Orange juice is a relevant contribution to the Brazilian economy, as long as five glasses of orange juice consumed in the world, three are produced in Brazil. For the purpose of increase the production of fruits and, ...
Preconcentration of seleno-amino acids on a XAD resin and determination in regional olive oils by SPE UPLC-ESI-MS/MS
(Elsevier, 2014-03-18)
This study describes a method for seleno-amino acids determination in Argentinean olive oils. Preliminary total selenium determination in olive oils probed low concentrations (62.8±1.6 to 117.4±3.0 μg/kg) and the necessity ...
A review of analytical methods for the determination of tibolone: Phar-macokinetics and pharmaceutical formulations analysis and application in doping control
(2021-01-01)
Background: Tibolone is a synthetic steroid commercialized by Organon under the brand name Livial (Org OD14), which is used in hormone therapy for menopause management and treatment of postmenopausal osteoporosis. Tibolone ...