Determination of the chemical composition of tea by chromatographic methods: a review [PDF]
, 2015 Despite the fact that mankind has been drinking tea for more than 5000 years, its chemical composition has been studied only in recent decades. These studies are primarily carried out using chromatographic methods.
Combet, Emilie +3 more
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Improved analysis of propylene oxide, propylene chlorohydrin and propylene bromohydrin
Julius-Kühn-Archiv, 2018 The benefits and deficiencies of several methods of analysis for PPO and PXH, including the aqueous extraction used in ASTA method 23.1 and the MTBE extraction method previously reported by the authors, will be discussed.
Hall, Wiley A. +2 more
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Effects of caffeic acid and bovine serum albumin in reducing the rate of development of rancidity in oil-in-water and water-in-oil emulsions [PDF]
, 2011 The antioxidant properties of caffeic acid and bovine serum albumin in oil-in-water and water-in-oil emulsions were studied. Caffeic acid (5 mmol/kg emulsion) showed good antioxidant properties in both 30% sunflower oil-in-water (OW) and 20% water-in ...
Conde, Enma +3 more
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The Scientific World Journal, 2014 Volatile components in cape gooseberry fruit at ripe stage were collected using headspace-solid phase microextraction, and analyzed by gas chromatography-mass spectrometry.
Murat Yilmaztekin
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Czech Journal of Food Sciences, 2014 Headspace solid phase microextraction and purge and trap analysis were used for the determination of volatiles in beer. These methods were compared with the analysis of unconcentrated gas phase and liquid extraction. Solid phase microextraction proved to
Jana KLEINOVÁ, Bořivoj KLEJDUS
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Bacteria isolated from Bengal cat (Felis catus × Prionailurus bengalensis) anal sac secretions produce volatile compounds potentially associated with animal signaling. [PDF]
, 2019 In social animals, scent secretions and marking behaviors play critical roles in communication, including intraspecific signals, such as identifying individuals and group membership, as well as interspecific signaling.
Cho, Adrienne W +8 more
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Comparison Between Dynamic Headspace and Headspace Solid-Phase Microextraction for Gas Chromatography of Btex in Urine [PDF]
Archives of Industrial Hygiene and Toxicology, 2007 The aim of this study was to compare two extraction procedures: dynamic headspace-purge and trap (PT) and headspace solid-phase microextraction (HS-SPME) for gas chromatographic determination of benzene, toluene, ethylbenzene, and isomeric xylenes (BTEX) in urine with photoionization (PID) and mass spectrometric (MS) detection, respectively.
Brčić Karačonji, Irena +1 more
openaire +3 more sources
Urinary naphthalene and phenanthrene as biomarkers of occupational exposure to polycyclic aromatic hydrocarbons. [PDF]
, 2008 OBJECTIVES: The study investigated the utility of unmetabolised naphthalene (Nap) and phenanthrene (Phe) in urine as surrogates for exposures to mixtures of polycyclic aromatic hydrocarbons (PAHs).
Garshick, E +9 more
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Journal of Chromatography Open, 2023 Aroma profiles of blueberries contain a heterogeneous mixture of volatile organic compounds (VOCs), and headspace sampling is the most efficient approach to VOC extraction from berries.
Ryan P. Dias +5 more
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Determination of total and available fractions of PAHs by SPME in oily wastewaters : overcoming interference from NAPL and NOM [PDF]
, 2009 Background, aim, and scope Polycyclic aromatic hydrocarbons (PAHs) are often found in oily wastewaters. Their presence is usually the result of human activities and has a negative effect on the environment.
AJ King +41 more
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