Shampoo Residue Profiles in Human Head Hair
Andrasko, J
Research associates, National Laboratory of Forensic Science, Linköping, Sweden.

Stocklassa, B
Research associates, National Laboratory of Forensic Science, Linköping, Sweden.


Abstract
Washing hair with shampoo results in an accumulation of shampoo components in the hair. Hair of individuals using different shampoos can be distinguished by analysis of shampoo residues.
A method for extraction and analysis of such residues is presented. The hair is extracted using a methanol/water mixture, and the extract is analyzed by reverse-phase high-pressure liquid chromatography (HPLC). The detector system consists of two ultraviolet (UV) detectors connected in series. The method is nondestructive to hair and is sensitive enough to be applied to a single hair 5 to 10 cm in length. Residues from hair balsams are analyzed by this technique as well.
The use of this method in forensic science examination of human head hair is demonstrated.

Keywords:
chromatographic analysis, forensic science, hair, liquid chromatography, shampoo, shampoo residue

Paper ID: JFS353900569

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Author Andrasko J, Stocklassa B Title Shampoo Residue Profiles in Human Head Hair Symposium , Committee on