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References
[1] Stefan Bieri, Philippe Christen, Maurus Biedermann,
and Koni Grob, Inability of Unpacked Gooseneck
Liners to Stop the Sample Liquid After InjectionWith
Band Formation (Fast Autosampler) Into Hot GC
Injectors, Anal. Chem. 76 (2004) 1696.
For a closer look at the form and function
of GC inlet liners, view Scott’s webinar at
Figure 1: Only the liners with an obstruction were able to produce even 90% sample
transfer with splitless injections—and only the liner with wool offered full accuracy.
Figure 2: Endrin and DDT breakdown is significantly reduced with Sky™ liners, due to higher inertness and lower activity—even when
using wool.
GC_EV1200_1202
Column Rxi® -5Sil MS, 15 m, 0.25 mm ID, 0.25 µm (cat.# 13620);
Sample endrin (50 ng/mL) and DDT (100 ng/mL) in hexane; In-
jection Inj. Vol.: 1 µL splitless (hold 0.75 min.); Liner: Comparison
of Sky™ Single Taper Gooseneck Liner with Wool (cat.# 23303.5)
and Agilent Single Taper Gooseneck Liner with Wool (cat.# 5062-
3587); Inj. Temp.: 250 °C.; Detector: µ-ECD@ 300 °C.
Peaks
1. DDE*
2. Endrin
3. DDD*
4. Endrin aldehyde*
5. DDT
6. Endrin ketone*
*breakdown products
20%
40%
60%
80%
100%
120%
5 10 15 20 25 30 35 40 45
% Transferred to Column Compared to
Cold On-Column Analyses
Hydrocarbon #
Single taper with wool
Single taper without wool
Double Taper
Cyclodouble taper
Straight splitless without wool
TM
Obstacle with wool
Obstacle without wool
No
Obstacle
]
Blue band indicates accurate range
Website : E-Mail : TelNo : 03 9762 2034 . . . in AUSTRALIA