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Extraction of aquatic organic matter by temperature decreasing: an alternative methodology to keep the original sample characteristics
- 摘要:
- In this work was developed an alternative methodology to separation of aquatic organic matter (AOM) ...
- doi:
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10.1590/S0100-40422003000200012
- 作 者:
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Almeida, Rosana N. H...
- 作者机构:
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- 期刊编号:
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- 期刊标题:
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Química Nova
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Regional geochemical reference for the interpretation of the chemical elements concentrations in the sediment samples from Lago Paranoá watershed-DF
- 摘要:
- doi:
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10.1590/S0100-40422003000600006
- 作 者:
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Boaventura, Geraldo ...
- 作者机构:
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- 期刊编号:
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- 期刊标题:
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Química Nova
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2,5-hexanodione determination in urine samples subjected to acid hydrolysis: relevance of the chromatographic column and the pH
- 摘要:
- Acidic hydrolysis of samples is frequent in urinary 2,5-hexanodione determination. This hydrolysis s...
- doi:
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10.1590/S0100-40422003000400021
- 作 者:
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Universidade Federal...
- 作者机构:
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- 期刊编号:
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- 期刊标题:
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Química Nova
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Eletrochemical synthesis of iron(VI) ferrate
- 摘要:
- The optimization of ferrate(VI) ion generation has been studied due to its favorable characteristics...
- doi:
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10.1590/S0100-40422003000300021
- 作 者:
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Luca, Sérgio João de...
- 作者机构:
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- 期刊编号:
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- 期刊标题:
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Química Nova
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Evaluation of graduate programs in chemistry in Brazil: 2002 version
- 摘要:
- The graduate programs in Chemistry were evaluated and classified from the data collected for the per...
- doi:
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10.1590/S0100-40422003000400029
- 作 者:
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Universidade Federal...
- 作者机构:
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- 期刊编号:
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- 期刊标题:
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Química Nova
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Analytical formulae for the energy of electron subshells in atoms and their optimization
- 摘要:
- Generalized analytical orthonormal quasi-hydrogenic radial wave functions with free parameters (radi...
- doi:
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10.3176/proc.2016.4.04
- 作 者:
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Arved Sapar
- 作者机构:
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- 期刊编号:
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- 期刊标题:
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Proceedings of the Estonian Academy of Sciences
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Design for sustainability approach in product development – a case study using innovative nail polishes developed by a small enterprise
- 摘要:
- This article presents a study on Design for Sustainability (D4S) that we conducted in a small compan...
- doi:
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10.3176/proc.2016.3.11
- 作 者:
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Zane Grigale-SoroÄi...
- 作者机构:
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- 期刊编号:
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- 期刊标题:
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Proceedings of the Estonian Academy of Sciences
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On approximation by Blackman- and Rogosinski-type operators in Banach space
- 摘要:
- In this paper we introduce the Blackman- and Rogosinski-type approximation processes in an abstract ...
- doi:
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10.3176/proc.2016.3.01
- 作 者:
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Andi Kivinukk;Anna S...
- 作者机构:
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- 期刊编号:
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- 期刊标题:
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Proceedings of the Estonian Academy of Sciences
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On endomorphisms of groups of order 36
- 摘要:
- There exist exactly 14 non-isomorphic groups of order 36. In this paper we will prove that three of ...
- doi:
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10.3176/proc.2016.3.06
- 作 者:
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Peeter Puusemp;Alar ...
- 作者机构:
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- 期刊编号:
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- 期刊标题:
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Proceedings of the Estonian Academy of Sciences
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On the influence of wave reflection on shoaling and breaking solitary Waves
- 摘要:
- A coupled BBM system of equations is studied in the situation of water waves propagating over a decr...
- doi:
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10.3176/proc.2016.4.06
- 作 者:
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Amutha Senthilkumar
- 作者机构:
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- 期刊编号:
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- 期刊标题:
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Proceedings of the Estonian Academy of Sciences