Registration Dossier

Administrative data

Endpoint:
adsorption / desorption: screening
Type of information:
experimental study
Adequacy of study:
supporting study
Study period:
1997
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: according to guideline routine without detailed description

Data source

Reference
Reference Type:
publication
Title:
Determination of the adsorption-coefficients of organic substances on sewage sludges
Author:
Kördel W., Hennecke D., Franke C.
Year:
1997
Bibliographic source:
Chemosphere, vol. 35, p. 107-119, 1997

Materials and methods

Test guideline
Qualifier:
equivalent or similar to
Guideline:
OECD Guideline 106 (Adsorption - Desorption Using a Batch Equilibrium Method)
Deviations:
not specified
GLP compliance:
not specified
Media:
soil/sewage sludge

Test material

Reference
Name:
Unnamed
Type:
Constituent
Radiolabelling:
no

Study design

HPLC method

Details on study design: HPLC method:
EQUIPMENT
- Apparatus: -
- Type, material and dimension of analytical (guard) column: MOS-Hypersil, 250×4.6 mm, 5 µm, precolumn
- Detection system: UV-VIS 203 nm


MOBILE PHASES
- Type: acetonitril/0.05 M H3PO3, 45/55, 1 ml/min

Batch equilibrium or other method

Analytical monitoring:
yes

Results and discussion

Adsorption coefficient
Type:
log Koc
Value:
2.45

Results: Batch equilibrium or other method

Mass balance (%) at end of adsorption phase
Duration:
3 h
% Adsorption:
45 - 60
Transformation products:
not measured

Applicant's summary and conclusion

Validity criteria fulfilled:
not specified