393 / 413
Environmental
Figure 2
An Rxi™-l ms column has excellent selectivity for basic or
acidic compounds, under the same conditions.
(O.5ng each; extracted ion chromatograms).
n-nitrosodimethylamine pyridine
1,4-dioxane
(base)
(base)
(neutral)
RF= 0.651
RF=0.826
RF=0,455
2.10
\
2.20
2.30
2.40
2,4-dinitrophenol
(acidic)
RF=0.1l3
j \
6.57 6.61 6.65 6.69
6.74
2.SOFigure 3
Acid ic analytes at S.Ong on an Rxi™-l ms column
(extracted ion chromatogram) .
1. phenol
2. 2-chlorophenol-d4 (surr.)
3. 2-chlorophenol
4. 2-methylphenol (o-cresol)
5. 2-nitrophenol
6. 2,4-dimethylphenoI3,5,6-d3 (surr.)
7. 2,4-dimethylphenol
penta chlorophenol
C'*:CI
l
#
CI
8. 2,4-dichlorophenol
9. 3-nitro-o-xylene (int.std.)
10. 4-chloro-3-methylphenol
11. 2,4,6-trichlorophenol
12. 2,4-dinitrophenol
13.4-nitrophenol
14. 2,3,4,5-tetrachlorophenol (int.std.)
15.2-methyl-4,6-dinitrophenol
16. 2,4,6-tribromophenol (surr.)
17. pentachlorophenol
9
6,7
2 3
10
14
17
15
13
12
16
I
I~
lLJ'~.....,J\-J"""'I-.-,--.-,"""""""'r--o-I
V'-"""""""'L"""""'--'-W''.J,l.,J~Jl,.....J....j'-r.-.-
4
5
6
8
10
11
GC.__
EV00834
Column:
Rxi'"-l ms,30m, 0.25mm !D,
0.25f.lm(cat.# 13323)
Sample:
US EPA Method528 Mix: Phenols FortificationMix, EPA528 (cat.# 31695),
Internal StandardMix,EPA528 (cat.# 31696),
Surrogate StandardMix, EPA 528 (cat.# 31697)
Inj.:
1.0f.lL,
5f.lg/mLeach analyte(internal standards
25f.l9/ mL),
split (10:1)
4mm Drilled Uniliner" inletliner (hole at bottom) (cat.# 20756)
Instrument:
Agilent 6890
In],
temp.:
250'C
Carrier gas:
helium, constantflow
Flow rate:
1.2mL/min.
Oven temp.:
70'C (hold0.5min.) to 130°C
@
8°C/min.,to300°C
@
50°C/min. (hold 1 min.)
Det.:
Agilent 5973MSD
Figure 4
Exceptionally low bleed for Rxi™-l ms columns at 330°C.
..
'"
"
.,
Ol ;
:
91
14
15
16
11
"
87. benzo(b)fluoranthene
88. benzo(k)fluoranthene
89. benzo(a)pyrene
90. perylene-d12 (int. std.)
91. indeno(1,2,3-cd)pyrene
92. dibenzo(a,h)anthracene
93. benzo(ghi)perylene
5ng each, oncolumn
Column:
Rxi'"-lms, 30m, 0.25mm!D,
0.25f.lm(cat.# 13323)
18
1.
'"
n
22
21
"
2S
26
GCEV00856
Based on these results, we highly recommend the
new Rxi™ -lms column for low-level analyses that
require a 100% dimethylpolysiloxane phase.
Rxi™-l
ms Columns (fused
silica)
(Crossbond" 100%dimethyl polysiloxane)
10
df
(J.tm)temp.limits
0.18mm 0.18 ·60 to
330/350°C
0.20mm 0.33 -60 to
330/350°C
0.20mm 0.33 -60 to
330/350°C
0.20mm 0.33 -60to
330/350°C
0.25mm 0.25 -60 to
330/350°C
Q.25mm 0.25 -60 to
330/350°C
0.25mm 0.25 -60to
330/350°C
0.25mm 0.50 -60 to
330/350°C
0.25mm 0.50 -60 to
330/350°C
0.25mm 0.50 -60 to
330/350°C
0.25mm 1.00 -60 to
330/350°C
Q,7.imm
~_~9
to
330/350°C
0.25mm 1.00 -60to
330/350°C
0.32mm 0.25 -60to
330/350°C
0.32mm 0.25 -60 to
330/350°C
0.32mm 0.25 -60 to
330/350°C
length
20-Meter
12-Meter
25·Meter
50-Meter
I S-Meter
60-Meter
I S-Meter
30-Meter
60-Meter
I S-Meter
30-Meter
60-Meter
I S-Meter
30-Meter
60-Meter
Q,,12mm
o.!i'O-----=§
.lU.lL~~0/3~0~5-MeteJ:..
0.32mm 0.50 -60 to
330/350°C
30-Meter
0.32mm 0.50 -60 to
330/350°C
60-Meter
0.32mm 1.00 -60 to
330/350°C
I S-Meter
0.32mm 1.00 -60 to
330/350°C
30-Meter
0.32mm 1.00 -60to
330/350°C
60-Meter
0.53mm 0.50 -60to
330/350°C
I S-Meter
0.53mm 0.50 -60 to
330/350°C
30-Meter
0.53mm 1.00 -60 to
330/350°C
I S-Meter
0.53mm 1.00 -60 to
330/350°C
30-Meter
0.53mm 1.50 -60 to
330/350°C
IS-Meter
0.53mm 1.50 -60 to
330/350°C
30-Meter
0.53mm 1.50 -60 to
330/350°C
60-Meter
restek innovation!
TheDrilled Uniliner"
cat #
price
13302 $370
13397 $230
13398 $365
13399 $630
13320 $260
~Q-Mele-,----!332}_$435_
13326
13335
13338
13341
13350
13353
13356
13321
13324
13327
$780
$260
$435
$780
$260
$435
$780
$280
$460
$820
m~~$280_
13339
13342
13351
13354
13357
13337
13340
13352
13355
P367
13370
13373
$460
$820
$280
$460
$820
$310
$515
$310
$515
$310
$515
$880
Toreducethe effects of surface activity in the injection port liner,
and focus on the effects of the column on active analytes, we
useda Drilled Uniliner®inlet liner.This liner eliminates contact
between the active compounds and active metal surfaces in the
injector, ensuring an inactive sample pathway for analyte transfer
from the injection port to the column. For more information,
request lit cat# 59877.
o
Use hole
near top
configurationif
analytes
elute
later thanthe
solventpeak,
orwhen the
samplesolvent
iswater
Use hole
near bottom
configuration if
I
analyteselate I
near the
lj
solvent peak
,
~
Website :
www.chromtech.net.auE-mail :
info@chromatech.net.auTelNo : 03 9762 2034 . . . in AUSTRALIA