LC Accessories

L C A C C E S S O R I E S
Frits
Encased Stainless Steel Frits
• Improved sealing over conventional frits
• Better mechanical stability
FRIT DIAMETER RING DIAMETER THICKNESS
ENCASED STAINLESS STEEL FRITS
0.5 MICRON 2 MICRON
(5/PK) (5/PK)
PART NO. PART NO.
Encased Stainless Steel Frit Specifications
Material:
316 Stainless Steel, PEEK, or Graph-Tite
Max. Temperature: 100º C
Max. Pressure 10,000psig
Typical Use:
Column Inlet/Outlet
2 MICRON
(10/PK)
PART NO.
PRICE
2 MICRON
(20/PK)
PART NO.
Stainless Steel Frits with PEEK Ring
0.083" (2.1mm) 0.250" (6.4mm) 0.063" (1.59mm) — — 9900 99001
0.125" (3.2mm) 0.250" (6.4mm) 0.063" (1.59mm) — — 9902 99021
0.156" (4.0mm) 0.250" (6.4mm) 0.063" (1.59mm) — — 9906 99061
0.273" (7.0mm) 0.375" (9.5mm) 0.063" (1.59mm) — — 9910 99101
0.352" (10mm) 0.500" (12.7mm) 0.063" (1.59mm) — — 9912 99121
Stainless Steel Frits with Stainless Steel Ring
0.391" (10mm) 0.500" (12.7mm) 0.063" (1.59mm) — 72201 — — —
0.859" (22mm) 1.000" (25.4mm) 0.063" (1.59mm) — 72202 — — —
Stainless Steel Frits with Carbon-Reinforced PEEK Ring
0.083" (2.1mm) 0.250" (6.4mm) 0.031" (0.79mm) 75015 75014 — — —
0.125" (3.2mm) 0.250" (6.4mm) 0.031" (0.79mm) 75013 75012 — — —
0.181" (4.6mm) 0.250" (6.4mm) 0.031" (0.79mm) 75006 75005 — — —
PRICE
Encased Metal-Free PAT ® Frits
• Metal-free inert construction
• Improved sealing over conventional frits
Encased Metal-Free PAT ® Frit Specifications
Material:
PAT ® (PEEK alloyed with PTFE), PEEK
Max. Temperature: 100º C
Max. Pressure 10,000psig
Typical Use:
Column Inlet/Outlet
ENCASED METAL-FREE PAT ® FRITS
FRIT DIAMETER RING DIAMETER THICKNESS
5 MICRON
(5/PK)
PART NO.
PRICE
10 MICRON
(5/PK)
PART NO.
PAT ® Frits with PEEK Ring
0.125" (3.2mm) 0.250" (6.4mm) 0.063" (1.59mm) 69025 69026
0.181" (4.6mm) 0.250" (6.4mm) 0.063" (1.59mm) 68152 69027
0.312" (7.9mm) 0.375" (9.5mm) 0.063" (1.59mm) 67152 69028
PRICE
What is the advantage of using encased
frits and how do I choose the size?
Encased frits seal better against the column
tube. As shown in Figure 1, elimination of
this stag nant flow pocket im proves peak
symmetry. Match the frit diameter to the
inside diameter of the column to prevent
sample and mobile phase from en ter ing the
space between the endfitting and the top of
the column tube. Match the ring diameter to
the outer diameter of the column tube.
With Conventional Frit
Poor
Resolution
With Encased Frit
Increased
Resolution
Figure 1 - Matching frit diameter to column inner
diameter improves resolution.
© Copyright 2004 Alltech Associates, Inc.
Contact your Alltech office or distributor for current or local prices.
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