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In a reliable study using the HPLC-method according to OECD 121 for estimating the adsorption coefficient Koc on soil and sewage sludge, for the test item a log Koc of >5.0 was determined. The reference substance of highest log Koc used was DDT (log Koc 5.63). The linear regression from the calibration curve gives a solid result with R^2= 0.9869. Thus, by linear extrapolation a log Koc of 6.2 was estimated for the test item.

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