Influence of the extraction methodology on the methylxanthines content of maté (Ilex paraguariensis a. St.-Hil., aquifoliaceae)
摘要：
Ilex paraguariensis A. St. -Hil. is a native species of southern South America. The caffeine content...
doi：
10.1590/S0100-40422007000200012
作 者：
Coelho, Geraldo C.;G...
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Química Nova
Evaluation of seasonal changes in chemical composition and antibacterial activity of Elyonurus muticus (sprengel) O. Kuntze (Gramineae)
摘要：
Aerial parts of Elyonurus muticus were collected in the four seasons of the year in the Brazilian Pa...
doi：
10.1590/S0100-40422007000200025
作 者：
Crispim, Sandra M. A...
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Química Nova
Comparative effectiveness microemulsions of diphenylcarbazide and saponified coconut oil in the carbon steel corrosion inhibition process
摘要：
The effectiveness of microemulsions (ME) of saponified coconut oil (OCS-ME) and diphenylcarbazide (D...
doi：
10.1590/S0100-40422007000500014
作 者：
Scatena Jr, Hélio;Un...
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Química Nova
Validation in laboratory of the analytical method to determine di-(2-ethylhexyl) phthalate and adipate utilized as plasticizers in pvc films
摘要：
The validation of analytical methods was carried out for di聳(ethylhexyl) phthalate (DEHP) and adipat...
doi：
10.1590/S0100-40422007000100035
作 者：
Borges, Soraia Vilel...
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Química Nova
Special clays: what they are, characterization and properties
摘要：
Special clays are a group of clays different from the large volume of clay mineral products named "I...
doi：
10.1590/S0100-40422007000100026
作 者：
Universidade de São ...
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Química Nova
Evaluation of analytical variables of the Folin-Ciocalteu method for the quantitation of the total tannins content using a Psidium guajava L. leaves aqueous extract as a model
摘要：
The main analytical variables of a modified Folin-Ciocalteu method were studied by UV-Vis and gradie...
doi：
10.1590/S0100-40422007000400011
作 者：
Ortega, George Gonzá...
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Química Nova
Physical, chemical and ecotoxicological characterization of an effluent from an explosives industry
摘要：
The production and use of nitroaromatic explosives have resulted in their dissemination into the env...
doi：
10.1590/S0100-40422007000700023
作 者：
Paiva, Teresa Cristi...
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Química Nova
An introduction to atomic spectroscopy: II - the sodium spectrum
摘要：
The present article is devoted to Chemistry or Physics undergraduate students, given their difficult...
doi：
10.1590/S0100-40422007000800044
作 者：
Sala, Oswaldo;Univer...
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Química Nova
Determination of strontium isotopic composition in natural waters: examples of application in subsurface waters of the coastal zone of Bragantina region, Pará
摘要：
Analytical procedures used for determining the concentrations and isotope composition of strontium i...
doi：
10.1590/S0100-40422007000400012
作 者：
Bordalo, Adriana Oli...
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Química Nova
Dietetic antioxidants: controversies and perspectives
摘要：
The generation of reactive oxygen and nitrogen species (ROS and RNS) during metabolism is capable of...
doi：
10.1590/S0100-40422007000200036
作 者：
Universidade de São ...
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期刊标题：
Química Nova
