POPULAR CONFIGURATION GCs
BTEX & Environmental
Sample:1mLheadspace from50ppbJapanesestandard inwater
Method:manual headspace injection
Column:60mMXT-VOL
Carrier:helium@10mL/min
Temperatureprogram:
Initial
Hold Ramp Final
40
o
C 2.000 15.000 220
o
C
220
o
C 10.00 0.000 220
o
C
FIDResults:
Component Retention Area
Solvent
2.416 290.1100
1_1-DCE 3.933
39.6100
T-1_2-DCE 4.833
34.3780
C-1_2-DCE 5.966
18.6020
1_1_1-TCA 6.683
29.6320
TCE
7.850
23.4490
PCE
10.083 10.7560
Total 446.5370
DELCDResults:
Component Retention Area
1_1-DCE 3.933
63.1790
T-1_2-DCE 4.816
38.0780
C-1_2-DCE 5.950
18.0560
1_1_1-TCA 6.666
53.2210
TCE
7.833
39.6900
PCE
10.083 20.8340
Total 233.0580
PIDResults:
Component Retention Area
Solvent
2.183
22.7450
1_1-DCE 3.916
39.4070
T-1_2-DCE 4.800
45.0050
C-1_2-DCE 5.950
15.7380
TCE
7.816
33.7270
PCE
10.066 16.2780
Total 172.9000
FIDgain:HIGH
FID temp:150
o
C
FID ignitor: -400
PIDgain:LOW
PIDcurrent:80
PID temp:150
o
C
DELCDgain:MED
DELCD temp:260
o
C
Expected Performance - Manual Headspace Injection
Toobtain thechromatogramsbelow,50ppbJapanesestandardwasplaced intoaVOAvialwithwater,
andallowed toequilibrateat room temperaturefor45minutes. TheFID(top)chromatogramshowsall the
componentsand thesolvent. ThePID(middle)doesnotdetect the1_1_1-TCA,while theDELCD(bottom)
doesnot respond to thesolvent.
