TY - JOUR PY - 1995// TI - Blood/breath correlations: Intoxilyzer® 5000C, Alcotest® 7110, and Breathalyzer® 900A breath alcohol analyzers JO - Journal (Canadian Society of Forensic Science) A1 - Taylor, M. D. A1 - Hodgson, B. T. SP - 153 EP - 164 VL - 28 IS - 2 N2 - Two infrared (IR) breath alcohol analyzers, the Alcotest® 7110 and the Intoxilyzer® 5000C, were evaluated against blood results and against the Breathalyzer® 900A currently used by Canadian police agencies. A total of 18 healthy human subjects were used for the breath to breath comparisons while 15 of those subjects each provided two blood samples approximately one hour apart for blood I breath correlations. The IR analyzers and the Breathalyzer® showed a high degree of correlation with blood samples (n = 15: r = 0.974 for the Breathalyzer®, r = 0.971 for the Intoxilyzer®, and r = 0.989 for the Alcotest®). All three Instruments underestimated the blood results (mean differences, blood minus breath: 12 mg% for the Breathalyzer®, 18 mg% for the Intoxilyzer®, and 9 mg% for the Alcotest®). In breath to breath comparisons the Intoxilyzer® underestimated the Breathalyzer® (n = 18, mean difference Breathalyzer® minus Intoxilyzer® = 4 mg%) while the Alcotest® overestimated the Breathalyzer® (n = 17, mean difference Breathalyzer® minus Alcotest® = −3 mg%).
LA - en SN - 0008-5030 UR - http://dx.doi.org/10.1080/00085030.1995.10757479 ID - ref1 ER -