restekapp07 - page 28

RestekCorporation • (800)356-1688 •
Figure3
Difficult probes* retain their response on Siltek
deactivation up to 120µL of an aqueous solution of pH 1.4.
Figure4
Response for XTI compounds on Siltek
deactivationwas consistent for 70 injections of an aqueous solution at pH 10.1.
30m, 0.25mm ID, 0.25µmXTI
®
-5 (cat.# 12223) with a Siltek
-deactivated 4mm open-top Uniliner
®
w/o wool (cat.# 20843-214.1).
Oven temp.:
40°C (hold 2min.) to 190°C@ 6°C/min., to 330°C@ 30°C/min. (hold 10min.);
Inj. temp.:
250°C;
Det.:
330°C;
Carrier gas:
He.
30m, 0.25mm ID, 0.25µmXTI
®
-5 (cat.# 12223) with a Siltek
-deactivated 4mm open-top Uniliner
®
w/o wool (cat.# 20843.214.1).
Oven temp.:
40°C (hold 2min.) to 190°C@ 6°C/min., to 330°C@ 30°C/min. (hold 10min.);
Inj. temp.:
250°C;
Det.:
330°C;
Carrier gas:
He.
1,2-hexanediol*
N
-nitroso-di-
n
-propylamine*
benzoic acid
2,4-dinitrophenol*
4-nitrophenol
4-nitroaniline
pentachlorophenol*
10
50
100
140
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
ResponseRelative toC14
30
70
120
160 180
µLAqueousHCl (pH=1.4)
0.1
120µL
1,2-hexanediol
N
-nitroso-di-
n
-propylamine
benzoic acid
2,4-dinitrophenol
4-nitrophenol
4-nitroaniline
pentachlorophenol
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
ResponseRelative toC14
0
40
80
20
60
100
µLAqueousNH
4
OH (pH10.1)
70 injections
1...,18,19,20,21,22,23,24,25,26,27 29,30,31,32,33,34,35,36,37,38,...324
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