DNA-Profiling on carpeting — Methods of purification, restriction and detection
In practice, bloodstains on carpeting are not very often submitted for investigation (approx. 5 % of all stained materials). However, carpeting is frequently very soiled or has been treated chemically (cleaned). In contrast to bloodstaines on smooth surfaces or cotton, DNA-extraction and restriction from bloodstains on soiled and highly absorbent materials is often difficult (Holtz and Olek, 1987; Kantner et al, 1988; Prinz and Berghaus, 1990; Scheithauer and Weisser, 1991a). Problems of identification of DNA from bloodstained materials previously treated with purification media have been demonstrated by Scheithauer (199lb).
KeywordsHumid Condition Deoxyribonucleic Acid Forensic Medicine Membrane Dialysis RFLP Analysis
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