Results 51 to 60 of about 5,247,884 (205)
Toxins, 2015 Solid bar microextraction (SBME), followed by liquid chromatography with fluorescence detection (HPLC-FLD), for the quantification of ochratoxin A in wheat and maize was developed.
Nabil Al-Hadithi +2 more
doaj +1 more source
Mass Spectrometry Reviews, EarlyView.ABSTRACT The review examines the evolution of chemical ionization mass spectrometry (CI‐MS), a technique developed in 1966 by Field and Munson. CI is a soft‐ionization method that produces more intense molecular ions with less fragmentation than electron ionization (EI).
Malvika Dutt +4 more
wiley +1 more source
Desenvolvimento de fibras de microextração em fase sólida com suporte de níquel-titânio eletrodepositado com polipirrol e sua aplicação na determinação de haloanisóis em água e vinho por cromatografia a gás [PDF]
, 2012 Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-graduação em Química, Florianópolis, 2010Neste estudo uma liga de NiTi foi utilizada como suporte da fase extratora da técnica de ...
Roux, Kalya Cravo Di Petro
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Separations, 2019 Through the development of solid phase microextraction (SPME) technologies, thin film solid phase microextraction (TF-SPME) has been repeatedly validated as a novel sampling device well suited for various applications.
Ronald V. Emmons +2 more
doaj +1 more source
Mass Spectrometry Reviews, EarlyView.ABSTRACT Top‐down proteomics (TDP) characterizes proteoforms in cells, tissues, and biofluids, in discovery mode and on a global scale, requiring analytical tools with high peak capacity for proteoform separation and high sensitivity for proteoform detection, given the extremely high proteoform complexity and wide proteoform concentration dynamic range.
Guijie Zhu +5 more
wiley +1 more source
Estudo sobre a fotodegradação de compostos orgânicos voláteis por microextração em fase sólida [PDF]
, 2013 Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Química, Florianópolis, 2010Neste trabalho foi inicialmente realizada uma análise qualitativa dos compostos orgânicos ...
Susin, Renato Cesar
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Multiple headspace solid-phase microextraction for the quantitative determination of volatile organic compounds in multilayer packagings [PDF]
, 2003 The theory of multiple headspace solid-phase microextraction (HS-SPME) and a method based on multiple HS-SPME for the quantitative determination of volatile organic compounds (VOCs) in packaging materials is presented.
Ezquerro, Ó. +2 more
core +1 more source
Química Nova, 2011 The determination of pesticide residues in water samples by Liquid Chromatography require sample preparation for extraction and enrichment of the analytes with the minimization of interferences to achieve adequate detection limits.
Sergiane Souza Caldas +5 more
doaj +1 more source
Mass Spectrometry Reviews, EarlyView.ABSTRACT Identification of a chemical agent yields insights into its physicochemical properties. By examining the intrinsic characteristics and environment of a compound, information about its history can be gathered. The main objective of authentication/forensic approaches to chemicals is to trace the history of the compound's origin, regardless of ...
Carla Orlandi +6 more
wiley +1 more source
Stir Bar Sorptive Extraction - New Approach for the Determination of Some Beer Flavours.
Kvasný průmysl, 2008 For the determination of beer flavours well-established methods require sample preparation steps such as liquid/liquid extraction, solid phase extraction or distillation techniques. During the past years the microextraction procedures become popular e. g.
Tomáš HORÁK +4 more
doaj +1 more source