Wyniki wyszukiwania dla: sde

• Application of single drop extraxtion (SDE) gas chromatography method for the determination of carbonyl compounds in spirits and vodkas

  Publikacja

  • J. Curyło
  • W. Wardencki

  - ANALYTICAL LETTERS - Rok 2006

  W pracy przedstawiono metodę oznaczania związków karbonylowych w spirytusach i wódkach, wykorzystującą do izolacji i wzbogacania technikę mikroekstrakcji do pojedynczej kropli (SDE)po derywatyzacji analitów O-(2,3,4,5,6-pentafluorobenzylo)hydroksylaminą. Określono optymalne parametry izolacji i wzbogacania aldehydów z roztworów alkoholowych (objętość próbki, objętość kropli, zawartość alkoholu, temperaturę i czas ekstrakcji)....

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• New analytical sample preparation techniques in food flavour analysis

  Publikacja

  • T. Chmiel
  • T. Dymerski

  - Rok 2010

  In this chapter sample preparation techniques were broadly characterized and their applications in field of food analysis were presented. Usefulness of three extraction methods: SPME, SAFE and SDE for isolation of aroma compounds from complex food matrices was compared. Additionally, requirements for sample preparation methods using in food flavour analysis were detailed.

• Estimation of a Stochastic Burgers' Equation Using an Ensemble Kalman Filter

  Publikacja

  • M. Domżalski
  • Z. Kowalczuk

  - Rok 2018

  In this work, we consider a difficult problem of state estimation of nonlinear stochastic partial differential equations (SPDE) based on uncertain measurements. The presented solution uses the method of lines (MoL), which allows us to discretize a stochastic partial differential equation in a spatial dimension and represent it as a system of coupled continuous-time ordinary stochastic differential equations (SDE). For such a system...

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• Role of distillation in determination of SCFAs in samples of different origin

  Publikacja

  • A. Jakimska-Nagórska
  • B. Zygmunt

  - Rok 2011

  Short-chain fatty acids (SCFAs) are very volatile compounds and choosing an appropriate isolation and enrichement technique is a key to their determination. Distillation is one of methods which can be applied. There are many types of distillation. The simplest ones are direct, steam and fractional distillation, but they are not used very often and have some drawbacks. However, many modifications of basic distillation have been...

• Anisotropic stochastic dispersion model for large-eddy simulations of particle-laden turbulent flows

  Publikacja

  • J. Pozorski
  • M. Knorps
  • J. Minier
  • J. Kuerten

  - Rok 2012