Method For Determining Residues in Plastics
AssigneeBASF SE
InventorsSamy Abdel-Baky, Detlef Dohnert, Jay Jones, Adam Finch
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Abstract
The present invention relates to a method for determining dangerous or pesticidal residues in plastics, which comprises processing a plastic sample to a fine powder, converting the powder into a form accessible for determining the analyte, and determining the analyte. The present invention is thus concerned with the analysis of plastics, in particular trace analysis of residues in plastics. The method advantageously allows the use of microextraction techniques and thus a high sample throughput. The method is especially useful for determining whether or not a plastic sample such as agricultural waste plastics contain pesticidal residues.
Claims25
1-29. (canceled)
Method for determining a dangerous analyte in plastics, which comprises processing a plastic sample to a powder having a particle size of 800 μm or less, treating the powder or a portion thereof with solvent capable of dissolving the analyte thereby providing a solution that contains the analyte, and determining the analyte.
Method for determining a pesticidal analyte in plastics, which comprises processing a plastic sample to a powder having a particle size of 800 μm or less, treating the powder with solvent capable of dissolving the analyte thereby providing a solution that contains the analyte, and determining the analyte.
Dependencies are inferred from the claim text.