Figure7
UsinganRxi®-624SilMS columnunder optimized conditions increasesproductivitybyassuringgood resolution
andminimal downtimewhenanalyzingenvironmental volatiles.
XIC—=m/z43
—=m/z72
GC_EV1169
Analyzeup to36 samples
per shiftby synchronizing
instrumentandpurge
and trapcycles.
Critical pairs resolved using an Rxi
®
-624Sil MS column under
synchronized conditions:
Peak#s Compounds
Common Ions
26/29
2-butanone (MEK)/ethyl acetate
43
41/42
benzene/1,2-dichloroethane
62
41/45
benzene/
tert
-amyl methyl ether (TAME) 43
ethyl acetate
2-butanone
(MEK)
Rxi®-624SilMSColumns
(fused silica)
(midpolarityCrossbond® silarylenephase; equivalent to6% cyanopropylphenyl/94%dimethyl polysiloxane)
For peak identificationsand conditions visitwww.restek.comandenter chromatogramGC_EV1169 in thesearch function.
ID
df
temp. limits
20-Meter
30-Meter
60-Meter
0.18mm 1.00µm -20 to 300/320°C
13865
$405
0.25mm 1.40µm -20 to 300/320°C
13868
$500
0.32mm 1.80µm -20 to 300/320°C
13870
$540
13872
$900
0.53mm 3.00µm -20 to 280/300°C
13871
$615
7
Website :
:
: 03 9762 2034 . . . inAUSTRALIA7
