Problem Gap in Column Outlet
Problem Gap in Column Outlet
Fitting: Chromatogram and Data
Fitting: Chromatogram and Data
0.06
0.04
0.02
0.00
0.04
0.02
0.00
0.06
0.04
0.02
0.00
0.00
0.00
0.50
1.00
1.50
2.00
Minutes
•System Benchmarking data
•
Acetone
Retention
Area
Average
0.323
52245
%RSD
0.69
Naphthalene Retention
Area
Average
1.633
155515
%RSD
0.44
Acenaphthene Retention
Area
Average
2.893
101332
%RSD
0.44
•No Gap
•Gap present
•No Gap
2.50
3.00
3.50
4.00
N=45
Plate
Tailing
Count
1.18
3144
Plate
Tailing
Count
1.13
11009
Plate
Tailing
Count
1.08
10436
0.010
0.005
0.000
0.010
0.000
0.010
0.005
0.000
0.50
1.00
1.50
2.00
•Benchmarking data + 9 injections
Acetone
Average
%RSD
Naphthalene Retention
Average
%RSD
Acenaphthene Retention
Average
%RSD
•USP Tailing: 1.12
•USP Tailing: 1.20
•USP Tailing: 1.12
2.50
3.00
3.50
4.00
Minutes
•
(after fix)N=54
Retention
Area
Tailing
0.323
50599
1.18
0.67
Area
Tailing
1.631
154565
1.12
0.45
Area
Tailing
2.893
100707
1.08
0.44
©2007 Waters Corporation
Plate
Count
3159
Plate
Count
10751
Plate
Count
10247
12