Figure 1
TheMXT
®
-1HTSimDist column exhibits
low bleed, which gives accurate
quantitation at high temperatures.
Innovators of High Resolution
Chromatography Products
the
in this issue
Rt-XLSulfur
™
GC Column and
Sulfinert
™
System for Trace Sulfur in
Beer Analyses
…pg. 6–7
Stx
®
-CLPesticides GC Column Pairs for
Improved Endrin Response
…pg. 8–9
Stabilwax
®
-DA GC Column for Analysis of
Flavor Components in Whiskey
…pg. 10-11
Ethanol Analytical ReferenceMaterials
for Blood Alcohol Analyses
…pg. 11
UST Analytical ReferenceMaterials
…pg. 12
Natural and Refinery Gas Analytical
ReferenceMaterials
…pg. 13
New InfraRed
™
Septa
…pg. 14
Cool Tools
…pg. 15
Behind the Scenes
…pg. 16
800-356-1688
814-353-1300
Fall
2001
by Neil Mosesman, GCColumnsProduct MarketingManager,
andDinesh V. Patwardhan, Ph.D., Senior ResearchChemist
Low-Bleed, High-Temperature
Column for ASTMMethodD-6352
MXT
®
-1HT SimDist GCColumn
Advantage
MXT
®
-1HT SimDist
GC Column for High-
Temperature Analyses
…pg. 1–2
Pinnacle
II
™
C18
and Cyano HPLCColumns
for Trace-Level Explosives
Analyses
…pg. 3–4
Rtx
®
-5Sil MS Columns for
Fast Semivolatiles Analyses
…pg. 5
The American Society for
Testing andMaterials
(ASTM) is an organiza-
tion that publishes con-
sensus standards for
materials, products, and
services. Because ASTM
methods are developed
by consensus from the
laboratories following the
method, they are recog-
nizedworldwide. ASTM
MethodD-6352 is a gas chromatography (GC)
method developed for the determination of petrole-
um distillates with a boiling point range of 174°C to
700°C. Often referred to as high-temperature simu-
lated distillation or SimDist, thismethod requires a
capillary column capable of withstanding high GC
oven temperatures, up to 430°C. This presents
many challenges for analysts becausemost capillary
✔
Durablemetal tubing and high-temperature polymer
allows analysis of hydrocarbons up to C110.
✔
Low bleed at high temperatures help achieve accurate quantitation.
✔
Meets all criteria of ASTMMethodD-6352.
new
10
20
30
40
min.
0
0
10
20
30
40
50
60
70
pA
5m, 0.53mm ID, 0.10µmMXT
®
-1HT (cat.# 70100)
GC:
Agilent 6890;
Injector:
on-column (track oven);
Carier gas:
helium (constant pressure);
Head pressure:
1.0psi;
Linear velocity:
60cm/sec.;
Flow rate:
7.8mL/min.;
Detector:
FID@ 430°C;
Make-up gas flow:
40cc/min.;
Temp. program:
40°C
to 430°C@ 10°C/min. (hold 30min.)
430°C
Figure 2
TheMXT
®
-1HTSimDist column allows analysis of hydrocarbons up toC110
in less than one hour.
20
30
40
50
min.
C30
C40
C44
C50
C60
C70
C80
C90
C100
C110
5m, 0.53mm ID, 0.10µmMXT
®
-1HT SimDist
(cat.# 70100)
Sample:
1.0µL Polywax 1000 standard
(cat.# 36227);
Solvent:
carbon disulfide;
GC:
Agilent 6890;
Injector:
on-column (track
oven);
Carier gas:
helium (constant pressure);
Head pressure:
1.0psi;
Linear velocity:
60cm/sec.;
Flow rate:
7.8mL/min.;
Detector:
FID
@ 430°C;
Make-up gas flow:
40cc/min.;
Temp. program:
40°C to 430°C@ 10°C/min.
(hold 30min.)
GC_PC00530
