Results 61 to 70 of about 5,286,924 (174)
Determinação de chumbo em amostra aquosa por extração suportada por membrana líquida renovável (HFRLM) e espectrometria de absorção atômica em chama (FAAS) [PDF]
, 2009 TCC (graduação) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Curso de Química.O presente trabalho tem por finalidade, o desenvolvimento de um método analítico empregando a espectrometria de absorção atômica em chama
Luciano, Raquel Medeiros
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Insect Science, EarlyView.Stable flies preferentially oviposit on sites offering conspecific eggs with egg‐derived airborne semiochemicals. Egg‐borne bacterial symbionts, and Serratia marcescens in particular, produce odorants which attract gravid female flies and elicit oviposition.
Emmanuel Hung +12 more
wiley +1 more source
Volatile Compounds in Feathers of the Scarlet Macaw (Ara macao) Reflect Sex and Pair‐Bond Status
Integrative Zoology, EarlyView.Scarlet macaws exhibit sex‐ and pair‐related differences in plumage volatile composition, with males showing greater chemical richness. Partnered individuals differ in specific compound classes, whereas no clear association with immune function was detected. These results support a potential role for olfactory cues in sexual and social communication in
Elisa Espartosa +3 more
wiley +1 more source
Ecological Entomology, EarlyView.Yeasts that specialize in flower nectar play an important role in pollination ecology. Metschnikowia reukaufii and Metschnikowia koreensis were the most prevalent nectar yeasts found in our field sites. Bee pollinators exhibited different behavioural responses to nectar yeasts in field experiments. Bees visited more flowers with M.
M. Elizabeth Moore +8 more
wiley +1 more source
Solid phase microextraction techniques used for gas chromatography: A review [PDF]
, 2020 In the last decade, the development and adoption of greener and sustainable microextraction techniques have been proved to be an effective alternative to classical sample preparation procedures.
Cappelli G. +8 more
core +1 more source
Ecological Entomology, EarlyView.Hamiltonella defensa infection increases honeydew production in certain aphid genotypes, potentially modifying aphid feeding behaviour. Parasitoid wasps, Aphidius ervi, are more attracted to honeydew from H. defensa‐infected aphids; though larger honeydew amounts may slightly deter searching.
Desiré Macheda +5 more
wiley +1 more source
Uso de um novo método de agitação para micro-extração em fase sólida - SPME - na determinação de fenóis em água [PDF]
, 2002 Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas. Programa de Pós-Graduação em Químca.Neste trabalho foi comparada a eficiência de três formas de agitação para a extração via SPME de um grupo de 11
Nome, Renata Cristiano
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Metal applications of liquid-phase microextraction [PDF]
, 2019 This review focuses on the combination of elemental detection techniques with liquid-phase microextraction (LPME), namely, single drop microextraction, hollow fiber based liquid-phase microextraction, dispersive liquid-liquid microextraction, and related
Canals, Antonio +3 more
core +1 more source
Otimização e aplicação da microextração em fase sólida com e sem refrigeração interna em amostras de ervas medicinais e água de rio [PDF]
, 2013 Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas. Programa de Pós-Graduação em Quimica, Florianópolis, 2013A microextração em fase sólida no modo de extração headspace (HS-SPME) e a microextração ...
Merib, Josias de Oliveira
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Solid Phase Microextraction and Related Techniques for Drugs in Biological Samples
Journal of Analytical Methods in Chemistry, 2014 In drug discovery and development, the quantification of drugs in biological samples is an important task for the determination of the physiological performance of the investigated drugs.
Mohammad Mahdi Moein +3 more
doaj +1 more source