BCC train (†helium carrier)
C6+
C2-
C3
IC4
NC4
NEOC5
IC5
NC5
Causes peak generation
Vent
.00
12.50
25.00
37.50
50.00
62.50
75.00
87.50
100.00
112.50
125.00
137.50
150.00
Seconds
162.50
Typical settings (individual analyzers may vary)
Cycle time
180 seconds
Sort order
22
Carrier pressure
Sample size
40 ul
Target component
NC5
Target retention time
Inject time
Inject time variance
Carrier pressure variance
Flow rate
± 10%
25 psig
± 15%
7 ml/min
130 seconds
Flow rate variance
± 15%
13 seconds
Oven temperature
60° C
NOTE: When used in conjunction with BCG, the combination is capable of providing the following calculated performance: ± 1 Btu.
†
Slope (rise)
Minimum peak
area
Front height
ratio
Peak detection
method
Peak direction
Baseline
segment start
Baseline
segment end
2
Slope (run)
10
Gate off
Maximum
0.02
Peak retention
time
Minimum
Hexane plus
Gate on
Separated
component
1
%RSD
Minimum
detectable limit
(mol%)
Component
number
Range
(mol%)
0.004
14
18
20
30
1
3000
0.75
Auto
Positive
0
0
2
Propane
0.1
100
2
0.002
35
40
50
15
1
3000
0.75
Auto
Positive
0
0
3
Isobutane
0.1
40
2
0.002
50
58
63
15
1
3000
0.75
Auto
Positive
0
0
4
Normal butane
0.1
40
2
0.002
59
65
75
30
3
3000
0.75
Auto
Positive
0
0
5
Neopentane
0.1
15
2
0.002
75
84
160
60
3
3000
0.75
Auto
Positive
0
0
6
Isopentane
0.1
15
2
0.002
75
112
160
60
3
3000
0.75
Auto
Positive
0
0
7
Normal pentane
0.1
15
2
0.002
75
132
160
60
3
3000
0.75
Auto
Positive
0
0
Interfering
component
Symbol
Max.
tolerance
Notes
Interfering
component
Symbol
Max.
tolerance
Notes
Water
H2O
0.03
Elutes 1 minute behind NC5
Trans-Butene-2
tB-2
0.0025
Co-elutes with NC4
Propylene
C3=
0.005
Co-elutes with C3
Cis-Butene-2
cB-2
0.0025
Co-elutes with NC4
Butene-1
B-1
0.0025
Elutes between IC4 and NC4
1,3-Butadiene
1,3-BD
0.0025
Co-elutes with NC4
Isobutylene
IC4=
0.0025
Elutes between IC4 and NC4
Hydrogen carrier gas cannot be used in a PGC1000 built for helium.
60 BCC | PGC1000 analytical offerings
BCC train
Inject mode 15 (±2) seconds
The provided illustration shows that during the inject mode, the
lighter gasses have already moved through column A and into
column B. The heavier gasses are retained on column A.
Backflush mode
In column A, C6 and heavier gasses are combined into a group
named C6+. C3-C5 will continue through column B, pass
through column A again and cross the detector bead. When
the gasses cross the detector bead, they change the amount of
energy necessary to maintain the temperature level of the bead.
This change in energy is what causes the peak generation for
each of the gasses.
Simplified view
Simplified view
To Detector & Vent
Sample & Carrier
Column A
Column B
Column A
Column B
To Detector & Vent
Carrier
GC Valve 1
GC Valve 1
Col 1A
Col 1A
Detector
Detector
Neo
Neo
Col 1B
Stream Input
3-15 psig
Carrier In
Vent
EPC
Sample Vent
Vent
EPC
Sample Vent
Col 1B
Stream Input
3-15 psig
Carrier In
PGC1000 analytical offerings | BCC 61