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• 1 800-356-1688 • 2005 vol. 2
TurningVisions into Reality™
- 20YEARS
THE RESTEK ADVANTAGE
Turning Visions into Reality™
2005 vol. 3
in this issue
Versatile GC Columns for Forensics . . . . . . . . . . . . . . . . 1
Optimized, 17-Minute GC Analysis
of Semivolatiles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
High-Speed Detailed Hydrocarbon Analysis . . . . . . . . 8
Rapidly Determine Benzene and
Toluene in Gasolines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Rapid, Dual Column Analysis for
Organochlorine Pesticides . . . . . . . . . . . . . . . . . . . . . . . 11
New Analytical Reference Materials
for Fuels, Accelerants . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Superior Moisture Dry-Down and
Corrosion Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Simple HPLC Analysis for Sudan Dyes . . . . . . . . . . . . . 16
Enhanced Electronic Leak Detector . . . . . . . . . . . . . . . 17
Genuine Restek HPLC Parts and Accessories . . . . . . . 18
Genuine Restek Supplies & Accessories for
ASE® Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Syringe Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Bulk Adsorbents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Instrument Innovations . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Cool Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
. . . . . . . . . . . . . . . . . . . . . . . . . 24
Where We’ll Be in October
October 17-21, 2005
Society of Forensic Toxicologists (SOFT), Renaissance
Nashville Hotel, Nashville, TN, booth #19
October 18-20, 2005
Gulf Coast Conference, Moody Gardens Convention
Center, Galveston Island, TX
Help Us Celebrate Our 20th Birthday! Visit us at
Booth 707, and receive a FREE Restek 20th
Anniversary Travel Mug and Tote Bag!
October 25-27, 2005
ISA Expo 2005, McCormick Place Lakeside Center,
Chicago, IL, booth #1322
Correction
In Advantage 2005v2, page 11: Analysis of Nitrofurans
in Honey. Mobile phase components A and B contain
acetic acid, not formic acid. Honey samples containing
nitrofuran metabolites were dissolved in 125mM HCl,
derivatized with 2-nitrobenzaldehyde, extracted,
evaporated, and reconstituted with mobile phase.
Versatile GC Columns for Forensics
Use an Rtx®-BAC1 / Rtx®-BAC2 Column Set To Evaluate
Blood Alcohol, Abused Substances, and Other Materials
By Kristi Sellers, Clinical/Forensic Innovations Chemist
• Unique column set for resolving/ confirming abused substances.
• 3-minute analysis for blood alcohols.
• Reliable data for ethylene glycol or GHB.
Analytical toxicology laboratories assist in criminal investigations by perform-
ing analyses for abused substances or poisons. Additional responsibilities
include testing for accelerants or explosive materials in investigations of fires or
explosions and assessing occupational/environmental exposure. Volatile and
non-volatile compounds commonly tested for include blood alcohols, alkyl
nitrites, anesthetics, inhalants, glycols, gamma-hydroxybutyrate (GHB), indus-
trial solvents, petroleum hydrocarbons, and nitrogen-containing explosives.
Figure 1 Baseline resolution of all blood alcohol components in
less than 3 minutes, using Rtx®-BAC1 and Rtx®-BAC2 columns.
Dual-column analysis using a two-hole ferrule.
1.0mL headspace sample of a blood alcohol mix on a PerkinElmer HS 40 headspace autosampler
Conc. w/v
1. methanol 0.1%
2. acetaldehyde 0.2%
3. ethanol 0.2%
4. isopropanol 0.1%
5. acetone 0.01%
6. n-propanol 0.1%
30m, 0.32mm ID, 1.8µm Rtx®-BAC1
(cat.# 18003)
30m, 0.32mm ID, 1.2µm Rtx®-BAC2
(cat.# 18002)
min. 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0
6
5
4
3
2
1
6
5
4
3
2
1
GC_PH00241
min. 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0
Oven temp.: 40°C
Inj. temp.: 200°C
Carrier gas: helium
Sample equilibration: 70°C, 15 min.
Vial pressure: 30psi
Vial pressurization time: 0.15 min.
Vial sampling time: 0.01 min.
Transfer line: 0.32mm ID Hydroguard™
fused silica tubing
Transfer line temp.: 200°C
Injection port sleeve: 2mm ID
Split flow: 20mL/min.