•
1
800-356-1688 •
2005vol. 2
TurningVisions intoReality
™
-
20
YEARS
THE
RESTEK
ADVANTAGE
Turning Visions into Reality
™
2005
vol.3
in this issue
VersatileGCColumns for Forensics . . . . . . . . . . . . . . . .
1
Optimized, 17-MinuteGCAnalysis
of Semivolatiles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5
High-SpeedDetailedHydrocarbonAnalysis . . . . . . . .
8
RapidlyDetermineBenzeneand
Toluene inGasolines . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10
Rapid,Dual ColumnAnalysis for
OrganochlorinePesticides . . . . . . . . . . . . . . . . . . . . . . .
11
NewAnalytical ReferenceMaterials
for Fuels, Accelerants . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12
SuperiorMoistureDry-Downand
CorrosionResistance . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14
SimpleHPLCAnalysis for SudanDyes . . . . . . . . . . . . .
16
EnhancedElectronicLeakDetector . . . . . . . . . . . . . . .
17
GenuineRestekHPLCPartsandAccessories . . . . . . .
18
GenuineRestekSupplies&Accessories for
ASE®Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
20
SyringeFilters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
21
BulkAdsorbents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
21
Instrument Innovations . . . . . . . . . . . . . . . . . . . . . . . . . .
22
CoolTools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
23
. . . . . . . . . . . . . . . . . . . . . . . . .
24
WhereWe’llBe inOctober
October17-21, 2005
Societyof ForensicToxicologists (SOFT), Renaissance
NashvilleHotel, Nashville, TN, booth#19
October18-20, 2005
GulfCoastConference,MoodyGardensConvention
Center, Galveston Island, TX
HelpUsCelebrateOur 20thBirthday!Visitusat
Booth707, and receiveaFREERestek20th
AnniversaryTravelMugandToteBag!
October25-27, 2005
ISAExpo2005,McCormickPlaceLakesideCenter,
Chicago, IL, booth#1322
Correction
In
Advantage2005v2, page11
: AnalysisofNitrofurans
inHoney.MobilephasecomponentsAandBcontain
aceticacid, not formicacid. Honey samples containing
nitrofuranmetabolitesweredissolved in125mMHCl,
derivatizedwith2-nitrobenzaldehyde, extracted,
evaporated, and reconstitutedwithmobilephase.
VersatileGCColumnsforForensics
UseanRtx®-BAC1 / Rtx®-BAC2ColumnSetToEvaluate
BloodAlcohol, AbusedSubstances, andOtherMaterials
By Kristi Sellers, Clinical/Forensic Innovations Chemist
• Unique column set for resolving/ confirmingabused substances.
• 3-minuteanalysis for bloodalcohols.
• Reliabledata for ethyleneglycol orGHB.
Analytical toxicology laboratories assist in criminal investigations byperform-
ing analyses for abused substances or poisons. Additional responsibilities
include testing foraccelerantsorexplosivematerials in investigationsof firesor
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, petroleumhydrocarbons, andnitrogen-containing explosives.
Figure1
Baseline resolutionof all bloodalcohol components in
less than3minutes, usingRtx®-BAC1andRtx®-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, 15min.
Vial pressure:
30psi
Vial pressurization time: 0.15min.
Vial sampling time:
0.01min.
Transfer line:
0.32mm IDHydroguard
™
fused silica tubing
Transfer line temp.:
200°C
Injection port sleeve:
2mm ID
Split flow:
20mL/min.
