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21 174 (0,157s) •

Result

Comparison of extraction techniques for the isolation of explosives and their degradation products from soil

A comparison of four extraction techniques used for the isolation of 14. Soxhlet warm extraction (SWE), pressurized solvent extraction (PSE), microwave assisted extraction(MAE) and supercritical fluid extractio...

CB - Analytická chemie, separace

  • 2013
    • •
  • Jx
    • •
  • Link
Result

Pressurized liquid extraction in the analysis of environmental samples.

This paper compares the extraction effectivities of two different extraction extraction and ultrasonication extraction. Analytical determinations were carried out different extraction techniques for the de...

CB - Analytická chemie, separace

  • 2007
    • •
  • D
Result

Pressurized fluid extraction for preparation of organic samples for analysis

Specific features, pros and cons of extraction methods under elevated pressures are discussed: supercritical fluid extraction, pressurized solvent extraction, pressurized hot water extraction, sub- and supercritica...

CB - Analytická chemie, separace

  • 2006
    • •
  • C
Result

Extracts as a modern dosage form for natural drugs

Plant extracts still constitute a part of commonly used dosage forms. The production of extracts is based on the periodic, continuous and semicontinuous methods, which can also be classified as conventional extraction metho...

Pharmacology and pharmacy

  • 2017
    • •
  • Jimp
Result

Extraction of naturally occurring cannabinoids: an update

. Before cannabinoids can be analysed, they need to be extracted from the matrices. Objective: To review literature on the methods and protocols for the extraction, in various combinations, with cannabinoids and extraction ...

Organic chemistry

  • 2021
    • •
  • Jimp
    • •
  • Link
Result

Appraisal of "classic" and "novel" extraction procedure efficiencies for the isolation of polycyclic aromatic hydrocarbons and their derivatives from biotic matrices.

The extraction efficiency of pressurized liquid extraction (PLE), employing different extraction solvent mixtures under different extraction conditions, was compared with extraction efficiencies of commonl...

GM - Potravinářství

  • 2004
    • •
  • Jx
Result

Multicomponent extraction calculation appliacation

This application calculates multicomponent extraction via individual components of the given extraction. This calcalation is based on differential equations for multicomponent extraction....

JC - Počítačový hardware a software

  • 2011
    • •
  • R
Result

The Insecticidal Activity of Satureja hortensis L. Extracts Obtained by Supercritical Fluid Extraction and Traditional Extraction Techniques

The acute toxicity of savory (Satureja hortensis) extracts obtained with supercritical CO2 and by traditional extraction techniques was tested on larvae of Musca and on adults of M. domestica, and the composition of volatile compoun...

CI - Průmyslová chemie a chemické inženýrství

  • 2008
    • •
  • Jx
Result

Prototype device for the preparation of bioactive extract

The 3-stage reactor system BIO-018 developed by the BRIKLIS company was technically modified to enable efficient multi-stage extraction of plant material. The modifications include, in particular, the procedures for loading the bed of the

Chemical engineering

  • 2023
    • •
  • Gprot
Result

Extraction of acid phosphomonoesterase from soil: testing of various extractants.

of extractants for extraction of acid phosphomonoesterase from soil. Succinate-borate buff er of pH 4.8 or 0.1 M K2SO4 were the most effi cient to extract this enzyme compared to0.1 M glutamic acid or 0.005 M salicylic aci...

DF - Pedologie

  • 2011
    • •
  • Jx
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