...I A Pretty, B.D.S. (Hons), M.Sc., Ph.D.; R C Hall, B.D.S., Ph.D. A case involving self-extraction of teeth linked to the abuse of gamma-hydroxybutyric acid (GHB) is reported. A 28-year-old woman and her 29-year-old boyfriend were discovered by paramedics following an extensive period of GHB use...

...M Klintschar, M.D.; F Neuhuber, Ph.D. A modified alkaline lysis protocol for extracting DNA from forensically relevant specimens is evaluated and compared with the chelex 100 method. For whole blood, bloodstains and sperm stains, both methods yielded comparable results after amplification...

...T Veress, M.Sc., Ed.D. The effect of different parameters (extraction method, temperature, time, solvent) on the extraction efficiency of LSD from impregnated papers has been investigated. Designed experiments have been applied according to the Plackett-Burman method. For the quantitative...

...), and methanol, sequentially. Ammoniated methanol, 2 mL at 2%, was selected to elute morphine. As a result, more than 80% of 3 H-morphine was recovered for concentrations of morphine ranging from 5 to 4000 ng/mL. 14 07 1992 14 09 1992 03 10 1992 toxicology extraction morphine blood...

... charcoal strip extraction flammable and combustible liquid residues References Nowicki , J. and Strock , C. , “ Comparison of Fire Debris Analysis Techniques ,” Arson Analysis Newsletter , Vol. 7 , No. 5 , 09 1983 , pp. 98 - 108 . Twibell , J. D. and Home , J. M...

... infrared spectroscopy (FT-IR), gas chromatography/mass spectroscopy (GC/MS). Fourier transform nuclear magnetic resonance (FT-NMR), thin-layer chromatography (TLC), and extractions were performed on standard and pharmaceutical steroids. Mandelin's accompanied by the sulfuric acid test was found to provide...

...J Harris The development of a 1-mm-diameter micro-hole punch allowing for the rapid collection of paper plugs from documents bearing questioned inks is presented. The Drummond Digital Microdispenser is also described, highlighting its advantages over other extracting and spotting techniques used...

...K Ensing, Ph.D.; JP Franke, Ph.D.; A Temmink, M.Sc; X-H Chen, M.Sc.; RA de Zeeuw, Ph.D. Solid-phase extraction (SPE) by means of disposable columns has become a widely accepted technique for sample pretreatment in toxicology, both for directed analyses and for screening analyses. However...

...X-H Chen, B.S.; J Wijsbeek; J-P Franke, Ph.D.; RA de Zeeuw, Ph.D. A single-column solid-phase extraction procedure was developed for the screening of acidic, neutral, and basic drugs from plasma. The recoveries of all 25 tested drugs exceeded 82%. After the plasma had been diluted with phosphate...

...P Kolla, Ph.D. The analysis of explosive traces in different samples from criminal investigations is described. An important step for the analysis is sample preparation with solid-phase extraction. The analytical procedure is preferably performed with gas chromatography and nitro/nitroso-specific...

...RL Brunelle, M.S.; H Lee Brunelle et al. ( Journal of Forensic Sciences . Nov. 1987) recently reported a single-solvent extraction technique for determining the relative age of ballpoint ink entries on questioned documents. This technique was mass dependent, which means equal amounts of ink had...

...BK Logan, Ph.D.; DT Stafford, Ph.D. Absorption extraction on diatomaceous earth was examined and found to be compatible with typical postmortem blood specimens encountered in forensic toxicology. The effects of solvent, solvent volume, eluate flow rate, and pH on drug recovery and extract quality...

... in situ hybridization Y-chromosome sex identification bloodstains agrose gel extraction fluorescence ultraviolet Zhong-Nian He. 1Ph.D., Xean-Hua Jiang; 1Shi-Hui Lu; 1 Guo-Lin Wang; 1 Yu-Wen Zhu; 1Shen-Wu Wang; 2 Yan Shen; 2 Qing-Sheng Gao; 2Jing-Zhong Liu; 2 and Guan- Yu Wu 2 A Study of Sex...

... appears to be unique to O 6 -acetylmorphine for neither morphine nor its closely related derivatives, codeine, thebaine, heroin, or O 3 -acetylmorphine form isolable adducts during ethyl acetate extraction. Factors affecting formation of this complex during workup and extraction of forensic science...

...RL Brunelle, M.S.; CH Breedlove, M.S.; CR Midkiff, M.S. A new single-solvent extraction technique was developed to estimate the relative age of ballpoint inks. The procedure involves extracting the inks with weak solvents, spotting the ink extract onto a thin-layer chromatographic plate...

... techniques. 02 03 1987 20 04 1987 01 11 1987 questioned documents inks extraction tagging ink library relative aging solvent extraction solubility thin-layer chromatography densitometry fluorescence spectroscopy gas chromatography Fourier transform infrared spectroscopy...

...T Inoue, Ph.D.; S Suzuki, B.S. Five extraction methods were examined for analysis of methamphetamine and its major metabolites in tissue samples. The extraction methods studied were an acetone extraction method, an ethanol extraction method, an ammonium sulfate method, dialysis, and a direct...

...JF Casale, B.S. A simple aqueous extraction method for the isolation and identification of psilocin from Psilocybe cubensis mushrooms is reported. This method employs a dephosphorylation of the phosphate ester to psilocin, which facilitates a greater product yield and simplifies identification...

...JD Twibell, Ph.D.; T Wright; D Gerald Sanger, Ph.D.; RK Bramley, Ph.D.; JBF Lloyd, Ph.D.; NS Downs A comparison of the relative efficiencies of several established techniques for extracting some common explosives from swabs has been made. Two methods were found to be of a reproducibly high...