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GC COLUMNS |
APPLICATION-SPECIFIC COLUMNS
Pharmaceut ical
Organic Volatile Impurities (OVI) Analysis
Rxi®-624Sil MS Columns
for USP<467> Residual Solvents analysis
Make the Switch
to Rxi® columns!
Replaces: DB-624, HP-624,
VF-624, BP-624, ZB-624,
AT-624, 007-1301, G43R
NEW!
Improve system suitablility
pass rates with the best
resolution of acetonitrile and
dichloromethane on any G43.
• Symmetric peak shape for bases
provides accurate integration and
unmatched sensitivity.
• High thermal stability ensures a
consistent baseline, making it the
only MS friendly column in its class.
• Reproducible Rxi® technology
provides the column-to-column
reproducibility needed in validated
methods.
Visit
www.restek.com/ovi
for a complete product listing.
Class 2 Mix A
Class 2 Mix B
Rxi®-624Sil MS Structure
X
Y
Z
Si
O
R
CH
3
CH
3
CH
3
C N
CH
3
Si
O
O
CH
3
CH
3
Si
CH
3
CH
3
Si
pyridine
acetonitrile
dichloromethene
Column:
Rxi
®
-624Sil MS, 30m, 0.32mm ID, 1.8µm (cat.# 13870)
Inj.:
1.0mL manual headspace injection, split (3:1), 1mm split liner (cat.# 20972)
Inj. temp.:
140°C
Carrier gas:
helium, constant flow
Flow rate:
2.2mL/min.
Oven temp.:
40°C (hold 20 min.) to 240°C @ 10°C/min. (hold 20 min.)
Det:
FID @ 250°C
Hydrogen:
40mL/min.
Air:
450mL/min.
Makeup:
45mL/min.
Instrument:
Agilent 6890
GC_PH01116
Better resolution of
acetonitrile and
dichloromethane
than on any other
G43 column.
GC_PH01117
Minimal peak
tailing
improves
accuracy for
pyridine.
Rxi®-624Sil MS Columns
(fused silica)
(midpolarity Crossbond® silarylene phase; equivalent to 6% cyanopropylphenyl/
94% dimethyl arylene polysiloxane)
• Low bleed, high thermal stability column—maximum temperatures up to 320 °C.
• Inert—excellent peak shape for a wide range of compounds, including acidic and
basic compounds.
• Selective—highly selective for residual solvents, great choice for USP<467>.
• Manufactured for column-to-column reproducibility—well-suited for validated
methods.
ID
df
temp. limits
20-Meter
30-Meter
60-Meter
0.18mm 1.00µm -20 to 300/320°C 13865
0.25mm 1.40µm -20 to 300/320°C
13868
0.32mm 1.80µm -20 to 300/320°C
13870
13872
0.53mm 3.00µm -20 to 280/300°C
13871
Website : www.chromtech.net.au E-mail : info@chromtech.net.au TelNo : 03 9762 2034 . . . in AUSTRALIA
Mar 2011