149 / 298
Universal “Y” Press-Tight
®
Connector
with data pack
Figure 3
The Rtx
®
-VGC column resolves chlorobenzene from ethylbenzene, for reliable quantitation.
Figure 2
Methyl-
tert
-butyl-ether,
tert
-butyl alcohol, and closely eluting hydrocarbons separated for
identification by MS.
• 7 •
www.restekcorp.com1
2
3
4
5
6
7
8
Column:
Rtx
®
-VGC 30m, 0.45mm ID,
2.55µm (cat.# 19408)
Inj.:
splitless injection w/ 0.5 min.
purge off
Compounds at 100ppm
Oven temp.
: 35°C (hold 5 min.)
Carrier gas:
helium @ ~8mL/min.
Detector:
Agilent 5971A
Scan range:
35 to 200amu
1. pentane
2. ethanol
3. 2-methylpentane
4. 3-methylpentane
5. methyl
tert
-butyl ether
6.
tert
-butyl alcohol
7. diisopropyl ether
8. ethyl-
tert
-butyl ether
GC_EV00466
min. .20
.60
1.00 1.40 1.80 2.20 2.60 3.00 3.40 3.80 4.20 4.60
1
2
3
4 5
6/7
8
9
Column:
Rtx
®
-VGC 30m, 0.45mm, 2.55µm (cat.# 19408)
Inj.:
100ppb in 5mL of RO water
Oven temp.:
40°C (hold 2 min.) to 130°C @ 6°C/min.
(hold 0 min.) to 230°C @ 30°C/min. (hold 2 min.)
Carrier gas:
helium @ ~8mL/min.
Detector:
Finnigan PID, make up 7mL/min., purge
7mL/min., set @ 0.35mV, base temperature 200°C
1. benzene
2.
α
,
α
,
α
-trifluorotoluene
3. toluene
4. ethylbenzene
5. chlorobenzene
6.
m
-xylene
7.
p
-xylene
8.
o
-xylene
9. 4-bromo-1-chlorobenzene
GC_EV00468
min.0
5
10
15
20
Rtx
®
-VGC
(Fused Silica)
Stable to 260°C
ID
df (µm)
temp. limits
30-Meter
60-Meter
75-Meter
105-Meter
0.25mm 1.40 -40 to 240/260°C 19415
19416
0.32mm 1.80 -40 to 240/260°C 19419
19420
0.45mm 2.55 -40 to 240/260°C 19408
19409
0.53mm 3.00 -40 to 240/260°C 19485
19488
19474
19489
ID
df (µm)
temp. limits
20-Meter
40-Meter
0.18mm 1.00 -40 to 240/260°C 49414
49415
diisopropyl ether
2,000µg/mL
ethyl-
tert
-butyl ether
2,000
tert
-amyl methyl ether
2,000
tert
-butyl alcohol
10,000
methyl
tert
-butyl ether
2,000
In P&T methanol, 1mL/ampul
California Oxygenates Mix
Each
5-pk.
10-pk.
30465
30465-510
—
30465-500
30465-520
30565
Universal “Y” Press-Tight
®
Connectors
• Split sample flow onto two different columns.
• Split a single column flow into two detectors.
• Perform confirmational analysis with a single
injection.
• Fits 0.18, 0.25, 0.32, & 0.53mm ID columns.
qty.
cat.#
price
ea.
20405
3-pk.
20406
Straight Silcosteel
®
Tubing
• Ideal for transfer lines, adsorbent traps, and thermal desorption tubes.
• Available in
1
/
8
- and
1
/
4
-inch OD.
• Easily cut to specific lengths.
18" (457mm) Length
ID
OD
qty.
cat.#
price
0.085" (2.16mm)
1
/
8
" (3.18mm)
ea.
20575
0.085" (2.16mm)
1
/
8
" (3.18mm)
5-pk.
20576
0.210" (5.33mm)
1
/
4
" (6.35mm)
ea.
20577
0.210" (5.33mm)
1
/
4
" (6.35mm)
5-pk.
20578
Standards for Underground
Storage Tank Monitoring
(UST)
Monitoring underground storage tanks (UST)
for leaks continues. Many states continue to
modify existing analytical methods, with several
states now using risk-based management of
compounds involved. These new methods often
pose challenges to the analyst, and require
unique mixtures for calibration and matrix
spike samples.
Restek continues to monitor the situation and
respond with calibration mixtures to meet
these needs. For our extensive selection of
chemical standards for UST analyses, please
refer to our 2002
Chromatography Products
Catalog
(lit. cat. #59662). For mixtures not
listed there, please contact Technical Service at
800-356-1688 or 814-353-1300, ext. 4, or
contact your local Restek representative.
Restek is your #1 source for pesticide reference materials!
✔
Extensive selection of stock mixtures and single-component solutions.
✔
Custom mixtures made to your exact specifications.
Fax our reference materials department (814-353-1309) or contact your local Restek
representative for more information.