Dominick A. Labianca

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There is substantial agreement among scientists that the variability of a person's blood- to breath-alcohol ratio contributes significantly to the experimental error in results from breath-alcohol analysis. Some have argued that the need to correct for this source of error can be eliminated by reporting breath test results in units of breath-alcohol(More)
The statistical analysis of non-transformed and logarithm-transformed blood- to breath-alcohol ratios ("blood/breath ratios") is detailed. The data analyzed were derived from 137 simultaneous blood-alcohol and breath-alcohol concentration measurements made between 15 and 179 min after the end of drinking, with 136 of the measurements obtained during the 15-(More)
Toluene and a mixture of the isomeric xylenes are common organic solvents that have been implicated in false ethanol results produced by older models of the Intoxilyzer 5000, a breath alcohol analyzer that uses infrared spectrophotometry to quantitate ethanol in breath samples. A straightforward method is described which predicts this type of interference(More)
This communication concerns the non-foolproof nature of slope detection technology that characterizes evidential breath-alcohol analyzers used to test individuals arrested for driving-while-intoxicated (DWI), with particular emphasis on the Dräger Alcotest 9510 evidential breathalcohol analyzer described below. In principle, slope detection technology is(More)
When a breath-alcohol analyzer is used to determine the breathor blood-alcohol concentration of a given subject, specificity for ethanol is an important consideration [1]. In this regard, CMI (Owensboro, KY, USA), has introduced the Intoxilyzer 8000 and has described this instrument as capable of taking “accurate and reliable measurement to a new level by(More)
A typical simulator solution used in the USA generates a result of either 0.10% (equivalent to 0.10 g/100 ml) in jurisdictions that report data as percent BACs, or the equivalent 0.10 g/210 l in jurisdictions that report test results in terms of BrACs. The latter concentration is obtained from Eq 2, which stems from the solution of Eq 1 for BrAC [2], as(More)
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