LC Accessories
LC Accessories
LC Accessories
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
Guard Cartridges<br />
L C A C C E S S O R I E S<br />
Prep-Guard Columns<br />
• Excellent retention of soluble and particulate<br />
contaminants<br />
• No holder required<br />
Alltech’s Prep-Guard protects your valuable<br />
preparative HP<strong>LC</strong> columns from damaging mobile phases<br />
and sample contaminants without changing your<br />
separation. Columns last longer and performance is more<br />
consistent. Troubleshooting is made easier when peak<br />
shapes begin to deteriorate or backpressures increase<br />
by simply replacing the guard as a first step in restoring<br />
system performance.<br />
Every Prep-Guard is individually packed and pressure<br />
tested to ensure a consistent, high quality product every<br />
time. Connect the Prep-Guard to the column using<br />
Alltech’s Direct-Connect column coupler (Figure 1) or<br />
with fittings and tubing (Figure 2). All of our most<br />
popular prep column packings are offered in a Prep-<br />
Guard format. Fast delivery on custom Prep-Guard <br />
Columns is available for media not shown, or use one of<br />
the “general purpose” packings to accommodate a wide<br />
range of C18 or Silica prep columns.<br />
Prep-Guard Column Specifications<br />
Dimensions:<br />
7mm i.d. x 33mm L<br />
Wetted Materials: Stainless Steel<br />
Max Pressure:<br />
5000psig<br />
Connections:<br />
10-32 UNF<br />
For Use With:<br />
10–25mm i.d. HP<strong>LC</strong> columns<br />
Comments:<br />
Requires Coupler<br />
3806<br />
PREP-GUARD COLUMNS<br />
ALLTECH PACKING PARTICLE SIZE PART NO. PRICE<br />
Alltima C18 10µm 970203<br />
Alltima Silica 10µm 970204<br />
Prevail C18 10µm 970211<br />
Prevail Silica 10µm 970212<br />
Apollo C18 10µm 970205<br />
Apollo Silica 10µm 970206<br />
ProSphere C18 - 300Å 10µm 970213<br />
ProSphere C18 - 100Å 10µm 970221<br />
ProSphere C4 - 300Å 10µm 970214<br />
ProSphere P-PREP 5µm 970220<br />
Econosphere C18 10µm 970209<br />
Econosphere Silica 10µm 970210<br />
General Purpose C18 10µm 970200<br />
General Purpose Silica 10µm 970202<br />
Custom Prep-Guard Any C-6000PG CALL<br />
Figure 1 - Connect with Direct-Connect <br />
coupler. (Part No. 28195)<br />
Figure 2 - Connect with fittings and tubing.<br />
(Part No. 9549)<br />
6286<br />
6285<br />
208<br />
PREP-GUARD ACCESSORIES<br />
DESCRIPTION PART NO. PRICE<br />
Direct-Connect Column Coupler 28195<br />
In-Line Connector 9549<br />
© Copyright 2004 Alltech Associates, Inc.<br />
How Often Should I Change my<br />
Guard Column?<br />
Ideally you want to change a<br />
guard before it becomes saturated.<br />
Obviously, this is difficult to judge,<br />
which leaves the option to either<br />
change at a predetermined time<br />
interval (i.e. every week), or use the<br />
chromatography as a gauge. Peak<br />
shape deterioration and backpressure<br />
increases are visual reminders.<br />
Contact your Alltech office or distributor for current or local prices.
Change language