fastfacts07 - page 2

Rtx
®
-1701/MXT
®
-1701
Capillary Columns
14% cyanopropylphenyl/86% dimethyl polysiloxane
At-a-Glance
Product
Information
fromRestek
800-356-1688
814-353-1300
What areRtx
®
1701/MXT
®
-1701 columns?
Rtx
®
and MXT
®
-1701 columns are fused
silica and Silcosteel
®
-lined stainless steel
(respectively) capillary GC columns coated
with a 14% cyanopropylphenyl/86%
dimethyl polysiloxane stationary phase.
Rtx
®
/MXT
®
-1701 columns have an interme-
diate polarity.
Why use a 14% cyanopropylphenyl/86%
dimethyl polysiloxane phase?
The cyano groups in Rtx
®
/MXT
®
-1701
columns impart a unique selectivity toward
compounds that posess dipole moments
and those that are proton donors or
acceptors, such as alcohols and nitriles.
Rtx
®
/MXT
®
-1701 columns are extremely
versatile, exhibiting long column lifetime,
low bleed, and thermal stability to 280°C.
Which applications work well using an
Rtx
®
/MXT
®
-1701 column?
These columns are ideal for the analysis
of nonpolar to polar compounds and acidic
to basic species, all within a single analysis.
They also are used for the analysis of
alcohols, oxygenates, pesticides, and
insecticides. The Rtx
®
/MXT
®
-1701 phase is
equivalent to the G46 phase used in United
States Pharmacopoeia (USP)Methods, and is
frequently listed in US Environmental
ProtectionAgency (EPA) Methods for pesti-
cides and other pollutants.
This highly versatile column can be used for awide range
of applications, such as pesticides, solvents, or drug compounds.
See our chromatography products catalog or visit
for
additional application chromatograms onRtx
®
-1701/MXT
®
-1701 columns!
Feature
Benefit
Fused silica&MXT
®
tubing
Available in a variety of lengths, IDs
and film thicknesses
Low bleed
Integra-Guard
columns
Tubingmaterial versatility—same price
regardless of tubing.
Useful for awide range of applications.
Increased detector sensitivity. Reduced
systemmaintenance.
Protects column fromnon-volatile sample
residue; longer column lifetime.
Connectionless.
Features&Benefits
Substituted Pyridines on an Rtx
®
-1701 Column
2
1
3 4 5 6 7
8
9
10
11
min. 4
8
12
16
20
24
28
32
GC_CH00333
60m, 0.53mm ID, 3.0µmRtx
®
-1701 (cat.# 12088)
0.1µLdirect injection of a substituted pyridine standard
(0.5-5% per component), Uniliner
®
inlet liner
Oven temp.:
60°C to 225°C@5°C/min.
Inj. & det. temp.: 230°C
Carrier gas:
hydrogen
Linear velocity: 40cm/sec. (flow rate: 5.1cc/min.)
FID sensitivity:
32 x 10
-11
AFS
1. methanol
2. benzene
3. toluene
4. pyridine
5.
α
-picoline
6. 2,6-lutidine
7.
β
-picoline
8. 4-cyanopyridine
9. 3-cyanopyridine
10. 2-cyanopyridine
11. picamide
1 3,4,5,6,7,8,9,10,11,12,...152
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