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Selective GC Detectors
151 Graham RoadPO Box 9010College Station, Texas 77842-9010
(979) 690-1711(800) 653-1711 USA/CanadaFAX (979) 690-0440
www.oico.comE-mail: oimail@oico.com
Publication 31670313
PFPD – Pulsed Flame Photometric DetectorPFPD – Pulsed Flame Photometric DetectorThe PFPD excels at selective detection of sulfur and phosphorus compounds, and can be configured to detect 26 other elements.
XSDTM – Halogen Specific DetectorThe XSD halogen specific detector is designed for selective detection of halogenated compounds such as pesticides, THMs, and PCBs.
Tandem GC DetectorsOI Analytical patented* tandem GC detectors combine a photoionization detector (PID) with an FID or second selective detector providing two simultaneous chromatograms from a single run. The PID selectively responds to aromatic and unsaturated hydrocarbons in the presence of alkanes and saturated hydrocarbons. The second detector is used to further differentiate and identify compounds with specific heteroatoms.
ELCD-Electrolytic Conductivity DetectorThe ELCD is designed for high sensitivity measurement of halogenated compounds. Interfacing an ELCD with a PID as tandem detectors is prescribed in USEPA methods 502.2 and 8021 for measurement of chlorinated and aromatic volatile organic compounds (VOCs) in drinking water and wastewater samples.
* U.S. Patents 4,804,846 and 5,578,271
Selective Detectors forGas Chromatography
9424_9424_OI Analytical Broch - Work-and-turn ] - FB 001 - 3/8/2013 1:27:06 PM - Black 9424_9424_OI Analytical Broch - Work-and-turn ] - FB 001 - 3/8/2013 1:27:06 PM - Cyan 9424_9424_OI Analytical Broch - Work-and-turn ] - FB 001 - 3/8/2013 1:27:06 PM - Magenta 9424_9424_OI Analytical Broch - Work-and-turn ] - FB 001 - 3/8/2013 1:27:06 PM - Yellow
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ELCD
PFPD
XSD
PID
PID/FID
PID/ELCD
PID/XSD
Enhancing Chromatographic Performance
Selective GC Detectors for Challenging Analytical Applications
OI Analytical selective GC detectors provide solutions to challenging analytical applications. Detecting sulfur species in petrochemicals, trace levels of organochlorine and organophosphorus pesticides in food samples, or sulfur and aromatic compounds in flavor and fragrance extracts are prime examples of applications that benefit from the use of selective GC detectors.
Compatible detectors are available for current models of GC instruments manufactured by Agilent, Bruker, Shimadzu, Thermo, and PerkinElmer.
Aromatics
Alkenes
Arsenic/Tin
BTEX
Chemical Weapon Agents (CWA)
Chlorinated Pesticides
Chlorinated VOC’s
Herbicides
Olefins
Organofluoride Compounds
PCBs
Phosphorus Compounds
S/P Pesticides
Sulfur Compounds
Trihalomethanes (THM)
VOCs
While gas chromatography coupled with mass spectrometry (GC-MS) is a powerful analytical technique, there are significant advantages to using selective GC detectors alone or in tandem with a MS detector for many applications.
A mass spectrometer is a universal, nonselective detector that yields total ion chromatograms containing a large number of compounds. Post-run mass spectra library searching is required to identify target compounds.
Selective GC detectors enhance chromatographic performance by measuring trace levels of target compounds in the presence of higher concentration compounds, or matrix interferences.
Selective GC detectors provide precise retention time marking for improved MS library matching and peak identification.
Co-elution of interferences in essential oils can make locating compounds responsible for characteristic aromas in a MS chromatogram quite difficult. The accompanying GC-MS total ion chromatogram of galbanum oil contains a large number of co-eluted compounds. A simultaneous sulfur mode PFPD chromatogram helps pinpoint sulfur compounds contributing to the fragrance profile of the oil.
Enhancing Chromatographic Performance
Simultaneous sulfur mode PFPD chromatogram of galbanum oil.
FID chromatogram of galbanum oilGC-MS total ion chromatogram of galbanum oil.
Abundance
5e+07
4.5e+07
4e+07
3.5e+07
3e+07
2.5e+07
2e+07
1.5e+07
1e+07
5000000
Time 20.00 40.00 60.00
20.00 40.00 60.00
Abundance2.2e+07
2e+07
1.8e+07
1.6e+07
1.4e+07
1.2e+07
1e+07
8000000
6000000
4000000
2000000
Time 20.00 40.00 60.00
Abundance 1600000
1500000
1300000
1200000
1100000
1000000
900000
800000
700000
600000
500000
400000
Time 34.00 35.00 36.00 37.00 38.00 39.00 40.00
Abundance1e+07
9000000
8000000
7000000
6000000
5000000
4000000
3000000
2000000
1000000
Time
9424_9424_OI Analytical Broch - Work-and-turn ] - FB 001 - 3/8/2013 1:27:06 PM - Black9424_9424_OI Analytical Broch - Work-and-turn ] - FB 001 - 3/8/2013 1:27:06 PM - Cyan9424_9424_OI Analytical Broch - Work-and-turn ] - FB 001 - 3/8/2013 1:27:06 PM - Magenta9424_9424_OI Analytical Broch - Work-and-turn ] - FB 001 - 3/8/2013 1:27:06 PM - Yellow
9424_9424_OI A
nalytical Broch - W
ork-and-turn ] - FB
001 - 3/8/2013 1:27:06 PM
- Black
9424_9424_OI A
nalytical Broch - W
ork-and-turn ] - FB
001 - 3/8/2013 1:27:06 PM
- Cyan
9424_9424_OI A
nalytical Broch - W
ork-and-turn ] - FB
001 - 3/8/2013 1:27:06 PM
- Magenta
9424_9424_OI A
nalytical Broch - W
ork-and-turn ] - FB
001 - 3/8/2013 1:27:06 PM
- Yellow
Processcontrol 2540 - 2540 dpi
Lithostar Agfa
1202 Ver.: 6.54_1
Prosetter
© H
eidelberger Druckm
aschinen 200299
9897
9695
12
34
5uncal.
cal.
20 - 40 - 50 - 60 - 80
$[SR
] lpi
Processcontrol 2540 - 2540 dpi
Lithostar Agfa
1202 Ver.: 6.54_1
Prosetter
© H
eidelberger Druckm
aschinen 200299
9897
9695
12
34
5uncal.
cal.
20 - 40 - 50 - 60 - 80
$[SR
] lpi
Processcontrol 2540 - 2540 dpi
Lithostar Agfa
1202 Ver.: 6.54_1
Prosetter
© H
eidelberger Druckm
aschinen 200299
9897
9695
12
34
5uncal.
cal.
20 - 40 - 50 - 60 - 80
$[SR
] lpi
Processcontrol 2540 - 2540 dpi
Lithostar Agfa
1202 Ver.: 6.54_1
Prosetter
© H
eidelberger Druckm
aschinen 200299
9897
9695
12
34
5uncal.
cal.
20 - 40 - 50 - 60 - 80
$[SR
] lpi
Processcontrol 2540 - 2540 dpi
Lithostar Agfa
1202 Ver.: 6.54_1
Prosetter
© H
eidelberger Druckm
aschinen 200299
9897
9695
12
34
5uncal.
cal.
20 - 40 - 50 - 60 - 80
$[SR
] lpi
Processcontrol 2540 - 2540 dpi
Lithostar Agfa
1202 Ver.: 6.54_1
Prosetter
© H
eidelberger Druckm
aschinen 200299
9897
9695
12
34
5uncal.
cal.
20 - 40 - 50 - 60 - 80
$[SR
] lpi
Processcontrol 2540 - 2540 dpi
Lithostar Agfa
1202 Ver.: 6.54_1
Prosetter
© H
eidelberger Druckm
aschinen 200299
9897
9695
12
34
5uncal.
cal.
20 - 40 - 50 - 60 - 80
$[SR
] lpi
Processcontrol 2540 - 2540 dpi
Lithostar Agfa
1202 Ver.: 6.54_1
Prosetter
© H
eidelberger Druckm
aschinen 200299
9897
9695
12
34
5uncal.
cal.
20 - 40 - 50 - 60 - 80
$[SR
] lpi
- B -
Processcontrol 2540 - 2540 dpi
Lithostar Agfa
1202 Ver.: 6.54_1
Prosetter
© H
eidelberger Druckm
aschinen 200299
9897
9695
12
34
5uncal.
cal.
20 - 40 - 50 - 60 - 80
$[SR
] lpi
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3/8/2013 1:27:06 PM
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Process:
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ELCD
PFPD
XSD
PID
PID/FID
PID/ELCD
PID/XSD
Enhancing Chromatographic Performance
Selective GC Detectors for Challenging Analytical Applications
OI Analytical selective GC detectors provide solutions to challenging analytical applications. Detecting sulfur species in petrochemicals, trace levels of organochlorine and organophosphorus pesticides in food samples, or sulfur and aromatic compounds in flavor and fragrance extracts are prime examples of applications that benefit from the use of selective GC detectors.
Compatible detectors are available for current models of GC instruments manufactured by Agilent, Bruker, Shimadzu, Thermo, and PerkinElmer.
Aromatics
Alkenes
Arsenic/Tin
BTEX
Chemical Weapon Agents (CWA)
Chlorinated Pesticides
Chlorinated VOC’s
Herbicides
Olefins
Organofluoride Compounds
PCBs
Phosphorus Compounds
S/P Pesticides
Sulfur Compounds
Trihalomethanes (THM)
VOCs
While gas chromatography coupled with mass spectrometry (GC-MS) is a powerful analytical technique, there are significant advantages to using selective GC detectors alone or in tandem with a MS detector for many applications.
A mass spectrometer is a universal, nonselective detector that yields total ion chromatograms containing a large number of compounds. Post-run mass spectra library searching is required to identify target compounds.
Selective GC detectors enhance chromatographic performance by measuring trace levels of target compounds in the presence of higher concentration compounds, or matrix interferences.
Selective GC detectors provide precise retention time marking for improved MS library matching and peak identification.
Co-elution of interferences in essential oils can make locating compounds responsible for characteristic aromas in a MS chromatogram quite difficult. The accompanying GC-MS total ion chromatogram of galbanum oil contains a large number of co-eluted compounds. A simultaneous sulfur mode PFPD chromatogram helps pinpoint sulfur compounds contributing to the fragrance profile of the oil.
Enhancing Chromatographic Performance
Simultaneous sulfur mode PFPD chromatogram of galbanum oil.
FID chromatogram of galbanum oilGC-MS total ion chromatogram of galbanum oil.
Abundance
5e+07
4.5e+07
4e+07
3.5e+07
3e+07
2.5e+07
2e+07
1.5e+07
1e+07
5000000
Time 20.00 40.00 60.00
20.00 40.00 60.00
Abundance2.2e+07
2e+07
1.8e+07
1.6e+07
1.4e+07
1.2e+07
1e+07
8000000
6000000
4000000
2000000
Time 20.00 40.00 60.00
Abundance 1600000
1500000
1300000
1200000
1100000
1000000
900000
800000
700000
600000
500000
400000
Time 34.00 35.00 36.00 37.00 38.00 39.00 40.00
Abundance1e+07
9000000
8000000
7000000
6000000
5000000
4000000
3000000
2000000
1000000
Time
9424_9424_OI Analytical Broch - Work-and-turn ] - FB 001 - 3/8/2013 1:27:06 PM - Black9424_9424_OI Analytical Broch - Work-and-turn ] - FB 001 - 3/8/2013 1:27:06 PM - Cyan9424_9424_OI Analytical Broch - Work-and-turn ] - FB 001 - 3/8/2013 1:27:06 PM - Magenta9424_9424_OI Analytical Broch - Work-and-turn ] - FB 001 - 3/8/2013 1:27:06 PM - Yellow
9424_9424_OI A
nalytical Broch - W
ork-and-turn ] - FB
001 - 3/8/2013 1:27:06 PM
- Black
9424_9424_OI A
nalytical Broch - W
ork-and-turn ] - FB
001 - 3/8/2013 1:27:06 PM
- Cyan
9424_9424_OI A
nalytical Broch - W
ork-and-turn ] - FB
001 - 3/8/2013 1:27:06 PM
- Magenta
9424_9424_OI A
nalytical Broch - W
ork-and-turn ] - FB
001 - 3/8/2013 1:27:06 PM
- Yellow
Processcontrol 2540 - 2540 dpi
Lithostar Agfa
1202 Ver.: 6.54_1
Prosetter
© H
eidelberger Druckm
aschinen 200299
9897
9695
12
34
5uncal.
cal.
20 - 40 - 50 - 60 - 80
$[SR
] lpi
Processcontrol 2540 - 2540 dpi
Lithostar Agfa
1202 Ver.: 6.54_1
Prosetter
© H
eidelberger Druckm
aschinen 200299
9897
9695
12
34
5uncal.
cal.
20 - 40 - 50 - 60 - 80
$[SR
] lpi
Processcontrol 2540 - 2540 dpi
Lithostar Agfa
1202 Ver.: 6.54_1
Prosetter
© H
eidelberger Druckm
aschinen 200299
9897
9695
12
34
5uncal.
cal.
20 - 40 - 50 - 60 - 80
$[SR
] lpi
Processcontrol 2540 - 2540 dpi
Lithostar Agfa
1202 Ver.: 6.54_1
Prosetter
© H
eidelberger Druckm
aschinen 200299
9897
9695
12
34
5uncal.
cal.
20 - 40 - 50 - 60 - 80
$[SR
] lpi
Processcontrol 2540 - 2540 dpi
Lithostar Agfa
1202 Ver.: 6.54_1
Prosetter
© H
eidelberger Druckm
aschinen 200299
9897
9695
12
34
5uncal.
cal.
20 - 40 - 50 - 60 - 80
$[SR
] lpi
Processcontrol 2540 - 2540 dpi
Lithostar Agfa
1202 Ver.: 6.54_1
Prosetter
© H
eidelberger Druckm
aschinen 200299
9897
9695
12
34
5uncal.
cal.
20 - 40 - 50 - 60 - 80
$[SR
] lpi
Processcontrol 2540 - 2540 dpi
Lithostar Agfa
1202 Ver.: 6.54_1
Prosetter
© H
eidelberger Druckm
aschinen 200299
9897
9695
12
34
5uncal.
cal.
20 - 40 - 50 - 60 - 80
$[SR
] lpi
Processcontrol 2540 - 2540 dpi
Lithostar Agfa
1202 Ver.: 6.54_1
Prosetter
© H
eidelberger Druckm
aschinen 200299
9897
9695
12
34
5uncal.
cal.
20 - 40 - 50 - 60 - 80
$[SR
] lpi
- B -
Processcontrol 2540 - 2540 dpi
Lithostar Agfa
1202 Ver.: 6.54_1
Prosetter
© H
eidelberger Druckm
aschinen 200299
9897
9695
12
34
5uncal.
cal.
20 - 40 - 50 - 60 - 80
$[SR
] lpi
Heidelberg P
repressH
eidelberg Prepress
Heidelberg P
repressH
eidelberg Prepress
Heidelberg P
repressH
eidelberg Prepress
Heidelberg P
repressH
eidelberg Prepress
Heidelberg P
repress
$[ScreenS
ystem]
$[DotS
hape]
3/8/2013 1:27:06 PM
////
25402540
60.045.0
0 %50 %
100 %
Process:
Lin: $[S
creenSystem
]$[D
otShape]
3/8/2013 1:27:06 PM
////
25402540
60.045.0
0 %50 %
100 %
Process:
Lin: $[S
creenSystem
]$[D
otShape]
3/8/2013 1:27:06 PM
////
25402540
60.045.0
0 %50 %
100 %
Process:
Lin: $[S
creenSystem
]$[D
otShape]
3/8/2013 1:27:06 PM
////
25402540
60.045.0
0 %50 %
100 %
Process:
Lin: $[S
creenSystem
]$[D
otShape]
3/8/2013 1:27:06 PM
////
25402540
60.045.0
0 %50 %
100 %
Process:
Lin: $[S
creenSystem
]$[D
otShape]
3/8/2013 1:27:06 PM
////
25402540
60.045.0
0 %50 %
100 %
Process:
Lin: $[S
creenSystem
]$[D
otShape]
3/8/2013 1:27:06 PM
////
25402540
60.045.0
0 %50 %
100 %
Process:
Lin: $[S
creenSystem
]$[D
otShape]
3/8/2013 1:27:06 PM
////
25402540
60.045.0
0 %50 %
100 %
Process:
Lin: $[S
creenSystem
]$[D
otShape]
3/8/2013 1:27:06 PM
////
25402540
60.045.0
0 %50 %
100 %
Process:
Lin:
Selective GC Detectors
151 Graham RoadPO Box 9010College Station, Texas 77842-9010
(979) 690-1711(800) 653-1711 USA/CanadaFAX (979) 690-0440
www.oico.comE-mail: oimail@oico.com
Publication 31670313
PFPD – Pulsed Flame Photometric DetectorPFPD – Pulsed Flame Photometric DetectorThe PFPD excels at selective detection of sulfur and phosphorus compounds, and can be configured to detect 26 other elements.
XSDTM – Halogen Specific DetectorThe XSD halogen specific detector is designed for selective detection of halogenated compounds such as pesticides, THMs, and PCBs.
Tandem GC DetectorsOI Analytical patented* tandem GC detectors combine a photoionization detector (PID) with an FID or second selective detector providing two simultaneous chromatograms from a single run. The PID selectively responds to aromatic and unsaturated hydrocarbons in the presence of alkanes and saturated hydrocarbons. The second detector is used to further differentiate and identify compounds with specific heteroatoms.
ELCD-Electrolytic Conductivity DetectorThe ELCD is designed for high sensitivity measurement of halogenated compounds. Interfacing an ELCD with a PID as tandem detectors is prescribed in USEPA methods 502.2 and 8021 for measurement of chlorinated and aromatic volatile organic compounds (VOCs) in drinking water and wastewater samples.
* U.S. Patents 4,804,846 and 5,578,271
Selective Detectors forGas Chromatography
9424_9424_OI Analytical Broch - Work-and-turn ] - FB 001 - 3/8/2013 1:27:06 PM - Black 9424_9424_OI Analytical Broch - Work-and-turn ] - FB 001 - 3/8/2013 1:27:06 PM - Cyan 9424_9424_OI Analytical Broch - Work-and-turn ] - FB 001 - 3/8/2013 1:27:06 PM - Magenta 9424_9424_OI Analytical Broch - Work-and-turn ] - FB 001 - 3/8/2013 1:27:06 PM - Yellow
9424
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Pro
cess
cont
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540
- 2
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Lith
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9998
9796
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20 -
40 -
50 -
60 -
80
$[S
R]
lpi
Pro
cess
cont
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540
- 2
540
dpi
Lith
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20 -
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lpi
Pro
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Lith
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Pro
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Pro
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dpi
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.: 6.
54_1
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9796
951
23
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20 -
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$[S
R]
lpi
Pro
cess
cont
rol 2
540
- 2
540
dpi
Lith
osta
r A
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Ver
.: 6.
54_1
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sette
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9796
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23
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20 -
40 -
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$[S
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Pro
cess
cont
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dpi
Lith
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R]
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Pro
cess
cont
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540
dpi
Lith
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Ver
.: 6.
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R]
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- B
-
Pro
cess
cont
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540
- 2
540
dpi
Lith
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1202
Ver
.: 6.
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Dot
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3/8/
2013
1
:27:
06 P
M
////
2540
2540
60.0
45.0
0 %
50 %
100
%
Pro
cess
: Li
n:
$[S
cree
nSys
tem
]$[
Dot
Sha
pe]
3/8/
2013
1
:27:
06 P
M
////
2540
2540
60.0
45.0
0 %
50 %
100
%
Pro
cess
: Li
n:
$[S
cree
nSys
tem
]$[
Dot
Sha
pe]
3/8/
2013
1
:27:
06 P
M
////
2540
2540
60.0
45.0
0 %
50 %
100
%
Pro
cess
: Li
n:
$[S
cree
nSys
tem
]$[
Dot
Sha
pe]
3/8/
2013
1
:27:
06 P
M
////
2540
2540
60.0
45.0
0 %
50 %
100
%
Pro
cess
: Li
n:
$[S
cree
nSys
tem
]$[
Dot
Sha
pe]
3/8/
2013
1
:27:
06 P
M
////
2540
2540
60.0
45.0
0 %
50 %
100
%
Pro
cess
: Li
n:
$[S
cree
nSys
tem
]$[
Dot
Sha
pe]
3/8/
2013
1
:27:
06 P
M
////
2540
2540
60.0
45.0
0 %
50 %
100
%
Pro
cess
: Li
n:
$[S
cree
nSys
tem
]$[
Dot
Sha
pe]
3/8/
2013
1
:27:
06 P
M
////
2540
2540
60.0
45.0
0 %
50 %
100
%
Pro
cess
: Li
n:
$[S
cree
nSys
tem
]$[
Dot
Sha
pe]
3/8/
2013
1
:27:
06 P
M
////
2540
2540
60.0
45.0
0 %
50 %
100
%
Pro
cess
: Li
n:
$[S
cree
nSys
tem
]$[
Dot
Sha
pe]
3/8/
2013
1
:27:
06 P
M
////
2540
2540
60.0
45.0
0 %
50 %
100
%
Pro
cess
: Li
n:
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