TABLE OF CONTENTS - BGB Analytik AG

GC and GC/MS
250
Polysiloxane Polymers Columns
CH 3
O Si O Si
DB-17 Chromatograms
C 6 H 5
CH C H 3 50%
6 5 50%
Structure of Diphenyldimethylpolysiloxane
Life Sciences
Common Drug Screen Page 448
Free Steroids Page 458
DB-17
• (50%-Phenyl)-methylpolysiloxane
• Mid-polarity – slightly more polar than HP-50+
• Excellent for confirmational analyses
• Bonded and cross-linked
• Solvent rinsable
• Equivalent to USP Phase G3
Similar Phases: HP-50+, Rtx-50, CP-Sil 24 CB, 007-17(MPS-50), HP-17, SP-2250, SPB-50,
ZB-50, AT-50
DB-17
ID (mm) Length (m) Film (µm) Temp Limits (°C) Part No.
0.05 10 0.10 40 to 280/300 126-1713
0.10 10 0.10 40 to 280/300 127-1712
0.20 40 to 280/300 127-1713
20 0.10 40 to 280/300 127-1722
0.18 20 0.18 40 to 280/300 121-1722
0.30 40 to 280/300 121-1723
0.25 15 0.15 40 to 280/300 122-1711
0.25 40 to 280/300 122-1712
0.50 40 to 280/300 122-1713
30 0.15 40 to 280/300 122-1731
0.25 40 to 280/300 122-1732
0.50 40 to 280/300 122-1733
60 0.25 40 to 280/300 122-1762
0.32 15 0.15 40 to 280/300 123-1711
0.25 40 to 280/300 123-1712
0.50 40 to 280/300 123-1713
30 0.15 40 to 280/300 123-1731
0.25 40 to 280/300 123-1732
0.50 40 to 280/300 123-1733
60 0.25 40 to 280/300 123-1762
0.53 5 2.00 40 to 280/300 125-1704
15 0.25 40 to 260/280 125-1711
0.50 40 to 260/280 125-1717
1.00 40 to 260/280 125-1712
1.50 40 to 260/280 125-1713
30 0.25 40 to 260/280 125-1731
0.50 40 to 260/280 125-1737
1.00 40 to 260/280 125-1732
1.50 40 to 260/280 125-1733
60 1.00 40 to 260/280 125-1762
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