Browsing by Subject "Armed Forces DNA Identification Laboratory"
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Item Evaluation of SPEX6750 Freezer Mill Pulveration of Teeth for Use in Nuclear Casework at the Armed Forces DNA Identification Laboratory(2008-08-01) Bintrim, Kristin A.; John Planz; Arthur Eisenberg; Joseph WarrenBintrim, Kristin A., Validation of Freezer Mill Pulveration of Teeth for use in Nuclear Casework at the Armed Forces DNA Identification Laboratory. Master of Science (Forensic Genetics), August, 2008, 44 pp., 4 tables, 6 figures, bibliography, 27 titles. I completed a validation study at the Armed Forces DNA Identification Laboratory. It was an evaluation of freezer mill pulveration of teeth for use in nuclear casework. The teeth were cleaned using a bleach and sonication method and then ground using a freezer mill. DNA extraction was achieved by using silica based capture techniques. The DNA was quantified, amplified and evaluated using fragment analysis. Several different amounts of input tooth powder were attempted to increase the DNA yield. Qiagen MinElute produced higher DNA yields then Promega’s DNA IQ system for the small sample size tested. After reviewing the results it was concluded that the DNA was most likely highly degraded and therefore did not produce complete genetic profiles for the samples tested.Item The Validation of Applied Biosystems Quantifiler Human DNA Quantification Kit and Quantifiler Y Human Male DNA Quantification Kit for the Armed Forces DNA Identification Laboratory(2004-08-01) Levandowsky, Elizabeth C.; Arthur Eisenberg; Joseph Warren; John PlanzLevandowsky, Elizabeth C., The Validation of Applied Biosystems Quantifiler™ Human DNA Quantification Kit and Quantifier™ Y Human Male DNA Identification Kit for the Armed Forces DNA Identification Laboratory. Master of Science (Forensic Genetics), July 2004. 14 tables, 6 figures, references, 12 titles. To produce the most accurate and reliable results, forensic laboratories, such as AFDIL, must examine new technologies in the field of DNA analysis. The present study is the beginning of an internal validation of the most recent development in DNA quantitation, RT-PCR. The Quantifiler Human DNA Quantification Kit and Quantifiler Y Human Male DNA Identification Kit are RT-PCR assays that quantitate human and male DNA, and detect PCR inhibitors which may hinder the ability to produce a reliable STR profile. Sensitivity and non-probative case sample studies were performed according to the DAB guidelines. The Quantifiler kits were not as sensitive as had been previously reported by Applied Biosystems. The non-probative case sample study demonstrated results two fold greater than results from the Taqman® Alu-PCR Quantitation System, a RT-PCR assay developed and validated at AFDIL. At this time, it appears it may be in the best interest of AFDIL to continue its use of the Taqman® Alu-PCR Quantitation System.