Carl M Selavka

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This article presents results from 1872 hair samples, which were analyzed for fatty acid ethyl esters (FAEEs) and ethyl glucuronide (EtG). The results were evaluated in the context of self-reported drinking behavior, the use of hair cosmetics, the gender of the sample donors and hair sample length. For comparison, CDT and GGT in serum were available in 477(More)
For diagnosis of chronic alcohol abuse, fatty acid ethyl esters (FAEE) were determined in hair samples from 644 individuals, mainly parents from child protection cases. The analysis for ethyl myristate, ethyl palmitate, ethyl oleate and ethyl stearate was performed according to a validated procedure consisting of external degreasing by two times washing(More)
The agent, 1,3-bis(3-chloroethyl)-1-nitrosourea (BCNU), when given by arterial infusion for brain tumor chemotherapy is usually dissolved in an alcohol/saline solution. The authors compared the osmolality of and drug recovery from solvent systems of alcohol/saline, dimethyl sulfoxide (DMSO)/water, and dextrose/water. Recovery of drug was adequate from all(More)
Liquid chromatography-electrochemical detection (LCEC) methods and instrumentation have been successfully applied for the trace determination of at least three separate platinum (Pt) anti-cancer (neoplastic) agents. All of these compounds have proven clinically effective in the treatment of human neoplasms. The three Pt derivatives studied were:(More)
The supercritical fluid extraction (SFE) behavior of cocaine and its major metabolite benzoylecgonine (BZE) was investigated and found to be highly dependent upon the chemical nature of the matrix and the manner in which the target drug analytes are incorporated into or on the matrix. The recovery of cocaine from Teflon wool, filter paper, drug-fortified(More)
The possible contribution of poppy seed foods to positive opiate urinalysis results, especially from foods available in the Pacific Rim area, has recently become an issue for the U.S. Army Forensic Toxicology Drug Testing Laboratory in Hawaii. To assess the likelihood of this possible contribution, seven different poppy seed food products were consumed by(More)
When a State Crime Laboratory Director found that fentanyl patches were missing from a case submission stored in his evidence vault, he performed an investigation of those members of his staff who had access to the materials. As part of this investigation, two staff members were forced to submit to hair testing for fentanyl and other opiates and opioids.(More)
Normal adult Dirofilaria immitis from a microfilaremic donor dog and D. immitis from donors rendered microfilaria (MF) negative by seven consecutive monthly doses of milbemycin oxime (500 micrograms/kg) were transplanted into three previously uninfected and untreated dogs. Two dogs received reciprocal combinations of treated and untreated D. immitis and the(More)
The National Institute of Justice (NIJ) and the National Aeronautics and Space Administration's (NASAs) Goddard Space Flight Center (GSFC) have teamed up to explore the use of NASA developed technologies to help criminal justice agencies and professionals solve crimes. The objective of the program is to produce instruments and communication networks that(More)