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Migration of dissolved organic carbon in biochars and biochar-mineral complexes.
(Pesquisa Agropecuária Brasileira, Brasília, DF, v.47, n.5, p.677-686, maio 2012., 2012)
Extração de matéria orgânica aquática por abaixamento de temperatura: Uma metodologia alternativa para manter a identidade da amostra
(2003-03-01)
In this work was developed an alternative methodology to separation of aquatic organic matter (AOM) present in natural river waters. The process is based in temperature decreasing of the aqueous sample under controlled ...
Extração de matéria orgânica aquática por abaixamento de temperatura: Uma metodologia alternativa para manter a identidade da amostra
(2003-03-01)
In this work was developed an alternative methodology to separation of aquatic organic matter (AOM) present in natural river waters. The process is based in temperature decreasing of the aqueous sample under controlled ...
Labile soil organic carbon for assessing soil quality: influence of management practices and edaphic conditions
(Elsevier Science, 2018-12)
Soil organic carbon (SOC) is a complex set of pools, and to understand its dynamics it is necessary to know which of these pools are sensitive to the edaphic and climatic conditions or the agricultural practices, or to ...
Optimization of bioactive compounds extraction from jabuticaba (Myrciaria cauliflora) skins assisted by high pressure CO2
(Elsevier Sci LtdOxfordInglaterra, 2011)
Factorial design of experiments for extraction and screening analysis of organic compounds in hydrochar and its process water of sugar cane bagasse and vinasse
(2020-01-01)
The extraction of non-volatile (NVOC), semi-volatile (SVOC), and volatile (VOC) organic compounds in water and soil samples follows well-defined protocols, already described in the specialized literature. However, for ...
Oxidized carbon nanotubes as sorbent for miniaturized solid-phase extraction of progestins from environmental water samples prior to their determination by HPLC-UV
(Springer, 2020-02-01)
A solid-phase extraction method is presented for micro-extraction of three progestins (levonorgestrel, 19-norethisterone acetate andmedroxyprogesterone acetate) from water samples. A mini-column was packed with 60 mg of ...
Water geochemistry of shallow lakes from the southeastern Pampa plain, Argentina and their implications on mollusk shells preservation
(Elsevier Science, 2017-12-15)
A seasonal sampling of sediments, column and interstitial water for physico-chemical analysis were performed in littoral and open water areas in three freshwater shallow lakes (Nahuel Rucá, Las Mostazas and Los Carpinchos) ...