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Environmental fate & pathways

Adsorption / desorption

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Administrative data

Endpoint:
adsorption / desorption: screening
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: GLP compliant, guideline study, available as an unpulished report, reliable with restrictions
Justification for type of information:
A discussion and report on the read across strategy is given as an attachment in Section 13.
Cross-reference
Reason / purpose:
read-across: supporting information
Reference
Endpoint:
adsorption / desorption: screening
Type of information:
read-across based on grouping of substances (category approach)
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: GLP compliant, guideline study, available as an unpulished report, reliable with restrictions
Justification for type of information:
A discussion and report on the read across strategy is given as an attachment in Section 13.
Reason / purpose:
read-across source
Qualifier:
according to
Guideline:
EU Method C.19 (Estimation of the Adsorption Coefficient (KOC) on Soil and Sewage Sludge Using High Performance Liquid Chromatography (HPLC))
Deviations:
no
GLP compliance:
yes
Type of method:
HPLC estimation method
Radiolabelling:
no
Test temperature:
Clumn temperature 40°C
Details on study design: HPLC method:
HPLC system: Agilent technologies 1100; Polymer laboratories Evaporating light scattering detector ( ELSD) Column temperature: 40°C Mobile phase: Methanol: water (55:45 v/v) Flow rate: 1ml/min pH of mobile phase: 7.0
Type:
log Koc
Value:
> 5.63 dimensionless
Temp.:
20 °C
Remarks on result:
other: temperature not stated so assumed standard
Validity criteria fulfilled:
yes
Conclusions:
The log Koc of Alkenes C20-24 is > 5.63, measured by the HPLC screening method.
Executive summary:

This is a GLP compliant, guideline study and is considered reliable and suitable for use for this edpoint.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2008
Report Date:
2008

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
EU Method C.19 (Estimation of the Adsorption Coefficient (KOC) on Soil and Sewage Sludge Using High Performance Liquid Chromatography (HPLC))
Deviations:
no
GLP compliance:
yes
Type of method:
HPLC estimation method
Media:
other: calculated using HPLC

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
Clear, colourless liquid. ENORDET 0241
Specific details on test material used for the study:
Details on properties of test surrogate or analogue material (migrated information):
No data
Radiolabelling:
no

Study design

Test temperature:
Clumn temperature 40°C

HPLC method

Details on study design: HPLC method:
HPLC system: Agilent technologies 1100; Polymer laboratories Evaporating light scattering detector (ELSD)
Column temperature: 40°C
Mobile phase: Methanol: water (55:45 v/v)
Flow rate: 1ml/min
pH of mobile phase: 7.0

Results and discussion

Adsorption coefficient
Type:
log Koc
Value:
> 5.63 dimensionless
Temp.:
20 °C
Remarks on result:
other: temperature not stated so assumed standard

Results: HPLC method

Details on results (HPLC method):
% organic carbon not given ,calculated using HPLC method.

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Conclusions:
The log Koc of Alkenes C20-24 is > 5.63, measured by the HPLC screening method.
Executive summary:

This is a GLP compliant, guideline study and is considered reliable and suitable for use for this edpoint.