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Oktanol-víz megoszlási hányados illékony anyagokra

Data provider

Budapest University of Technology and Economics, Department of Applied Biotechnology and Food Science, Environmental Microbiology and Biotechnology Group

Organisation/Data provider's nameBudapest University of Technology and Economics, Department of Applied Biotechnology and Food Science, Environmental Microbiology and Biotechnology Group
Name of contact
Dr. Molnár Mónika, Dr. Feigl Viktória
Contact details
Telephone/fax
+36-1-4632347
E-mail
mmolnar@mail.bme.hu
vfeigl@mail.bme.hu
Website
http://envirotox.hu
Compulsory sheet
Method Hungarian nameOktanol-víz megoszlási hányados illékony anyagokra
Method name
Octanol-water partition coefficient for volatile compounds
Stage of development
developed, proven by demonstration
Contaminants
Chemical substance group|Typically treated chemical substance
  • Volatile (nonhalogenated) organic compounds
Description of the measurement technique
Accuracy (%)
10.00
Reproducibility (%)
10.00
Selectivity
non-selective
Chemical substance group|Typically treated chemical substance
  • Halogenated aliphatic organic compounds
Description of the measurement technique
Accuracy (%)
10.00
Reproducibility (%)
10.00
Selectivity
non-selective
Chemical substance group|Typically treated chemical substance
  • Halogenated aromatic organic compounds
Description of the measurement technique
Accuracy (%)
10.00
Reproducibility (%)
10.00
Selectivity
non-selective
Feasibility of the method
Method type
measurement/analytical method
Place of application
In laboratory
Application areas of the method
Measurement of the effect/physical-chemical properties of the chemical substance
Application possiblities of the method
Preliminary assessment of contaminated environment
Environmental element/phase the method may be applied to
Other
Implementation conditions
Instrument/equipment needed to perform the measurement
gázkromatográf
Reagents/materials for the test
oktanol
How many samples are needed
kevesebb, mint 1g
Data processing level
data input in PC, data evaluation by excel or other software
Necessary qualification
secondary education (chemical technician, chemical worker, laboratory assistant)
Type of laboratory
general analytical laboratory
Implementation costs
Purchase price of the equipment
8.000 - 20.000 Euro
Labour cost/measurement
4 - 8 Euro
Total cost/measurement
8 - 20 Euro
Innovation, main features
Brief concise description explaining the innovation

A megoszlási hányados 2 injektálásból, kalibráció nélkül meghatározható, mert a vizes fázist oktanollal, az oktanolos fázist vízzel hozzuk egyensúlyba, majd gőztéranalízissel mérjük mindkét minta felett kialakult koncentrációnak megfelelő csúcsterületet.

Typical (recommended) application of the method

illékony vegyületek: szénhidrogének, peszticidek, klórozott szénhidrogének megoszlási hányadosának meghatározása.

Limits of the method

csak illékony vegyületekre alkalmazható

Detailed Protocol

A vizsgálandó anyagból 25 ul-t adunk 1 ml oktanolt és 1 ml vizet tartalmazó csavaros edénybe. Lezárva egy órát kevertetjük, majd a fázisok szétválása után 200-200 ul-t veszünk a két fázisból gázkromatográfiás gőztéranalízishez való mintatartó edénybe. 200 ul vizes fázishoz 200 ul oktanolt mérünk, valamint 200 ul oktanolos fázishoz 200 ul vizet mérünk. Mindkét mintát lezárjuk, 20 percig 90°C-on inkubáljuk, majd 250-250 ul-t injektálunk a gázkromatográfba. A megoszlási hányados a két mintában a vizsgálandóra kapott csúcsterületek hányadosa.

SWOT (evalaution based on scores)
Costs
3-medium
Time requirement
4-low
Workload requirement
4-low
Equipment, apparata requirement
2-high
Qualified labour
3-medium
Environmental risk and workplace risks
3-medium
Environmental reality
4-good
Adequate accuracy
4-good
Reproducibility
4-good
Cost efficiency
4-good
Feasibility
3-average
Availability
4-good
Well known
0-non relevant
SWOT (evaluation in words)
Strengths

egyszerű gyors módszer, nincs szükség kalibrációra

Weaknesses

csak illékony vegyületekre alkalmazható

Threats

a vizsgált anyagok többnyire toxikusak

Other information, references
Webpage references and DEMO reports

www.mokkka.hu

Publications

Szaniszlo, N. Fenyvesi, E. Balla, J., Journal of Inclusion Phenomena and Macrocyclic Chemistry, 53(3-4), 241-248 2005 Springer

Completed applications
Location of the application, country
Magyarország
Location of the application, town and/or region
Budapest
Year of application
2004
Application areas
Measurement of the effect/physical-chemical properties of the chemical substance
Environmental element the method was applied to
Preliminary assessment of contaminated environment
Environmental scenario the method was applied to
Terrestial habitat: polluted soil
Environmental element/phase the method was applied to
Other
Other environmental element
vegyi anyagot méri
Contaminant the method was applied to
Petroleum derivatives (TPH)
Benzene and alkyl benzenes (BTEX)
Lessons learned

jól reprodukálható módszernek bizonyult, az eredmények jól egyeznek az irodalmi adatokkal

Adatlap tulajdonságai
Datasheet id (original)
212
Creator
Balogh Klára
Status
Verified
Adatlap típusaPhysico-chemical assessment methods
Létrehozás
Módosítás