Figure1:
Rtx®-BACPlus columnsprovide thebestoverall performance fordeterminingbloodalcohol concentration.
Highly symmetrical, baseline separatedpeaksprovide fast anddefinitive results for all target compounds.
3
•
•
min.
0.5
0.75
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1.25
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2.5
2.75
1
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1.25 1.5 1.75
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2.25 2.5 2.75 min.
2
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5,6
7
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0.75
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1.25
1.5
1.75
min.
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min.
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0.5 0.75
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1.25 1.5 1.75
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2.25 2.5 2.75 min.
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min.
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• Baselineseparationof
all compounds.
• Symmetrical alcoholpeaks.
Rtx®-BACPlus1
GC_CF1153
• Narrow, highlysymmetricalpeaks.
• All compoundsseparated ina fast,
2-minuteanalysis.
Rtx®-BACPlus2
GC_CF1154
Coelutionof acetone
and
tert
-butanol; tailing
alcoholpeaks.
DB®-ALC1
DB®-ALC2
GC_CF1166
Peaks
Conc.
(µg/mL)
1. Methanol
100
2. Acetaldehyde
100
3. Ethanol
100
4. Isopropanol
100
5. Acetone
100
6. t-Butanol
50
7. 1-Propanol
50
Tailingalcohols, broadpeaks.
GC_CF1167
Peaks
Conc.
(µg/mL)
1. Acetaldehyde
100
2. Methanol
100
3. Ethanol
100
4. Acetone
100
5. Isopropanol
100
6. t-Butanol
50
7. 1-Propanol
50
Columns:Rtx®-BACPlus1, 30m,0.32mm ID, 1.8μm (cat.#18004);Rtx®-BACPlus2, 30m,0.32mm ID,0.6μm (cat.#18006);DB®-ALC2andZB-BAC2, 30m,0.32mm ID, 1.2μm;DB®-ALC1andZB-BAC1,
30m,0.32mm ID, 1.2μm; Sample: 50µLeachofBAC resolutioncontrol standardn-P (cat.#36010)andBAC resolutioncontrol standard t-B (cat.#36011)diluted in900µLwater ina20mLheadspacevial;
Injection:Headspace-loop split (split ratio50:1); Liner: 1mm ID straight inlet liner (cat.#20972);Headspace-Loop: Inj. PortTemp.: 200 °C; Instrument: TekmarHT3; TransferLineTemp.: 125 °C;ValveOven
Temp.: 125 °C; StandbyFlowRate: 50mL/min; SampleTemp.:60 °C; SampleEquil. Time: 5min;Vial Pressure: 30psi; LoopPressure: 20psi; LoopFill Time: 1min;Oven:40 °C (hold3min);CarrierGasHe,
constantflow; LinearVelocity:80cm/sec@40 °C;DetectorFID@240 °C;Make-upGas:Nitrogen, 30mL/min; InstrumentAgilent/HP6890GC;Acknowledgement:Headspaceconcentrator courtesyof
TeledyneTekmar,Mason,OH.
Tailingalcohol andacetone
peaks;minimal separationof
methanol andacetaldehyde.
ZB-BAC1
ZB-BAC2
GC_CF1168
PrimaryAnalysis
RESTEK
AGILENT
PHENOMENEX
Broadpeakswithextensive
tailingonalcohols.
ConfirmationalAnalysis
GC_CF1169
