Specifications

33
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PUMP MAINTENANCE
HPLC In-line filters
C
olumn inlet frit contamination can increase column back pressure and reduce efficiency.
M
icrobore column blockages are a particular problem, due to the small diameter of the
inlet frit. To prevent blockages, always use the appropriate filters in your LC system.
Agilent offers two types of high pressure in-line filter kits for use with any HPLC system:
Low-volume column inlet filter
Ideal for microbore, narrow-bore, high-speed or standard analytical columns.
This low-volume column inlet filter is positioned immediately before the LC column, so it
can remove particles from both the injection system and the sample. With a frit diameter
of only 2.1 mm – plus tapered inserts – this filter minimizes external bandspreading while
maximizing the filtration capacity.
Universal solvent filter
A high-capacity filter with built-in efficiency.
Universal solvent filters are installed between the LC pump and the injector, so particles
from the solvent can be removed
before they reach the injector. The filter assembly
consists of a 4.8 mm frit, two inserts and a two-piece holder. The frit is placed between
the tapered edges of the inserts in such a way that the solvent is evenly distributed over
the whole surface of the frit. This provides efficient filtration and extends the life of the frit.
Description Part No. Price ($)
Low dispersion in-line filter Includes
one 1.6 mm 2 µm frit, filter holder with inserts,
60 x 0.12 mm connecting capillary
01090-68702 132
Replacement frits for 2.1 mm columns,
2
µ
m, 10/pk
280959-904 51
Replacement frits for 2.1 mm columns,
0.5 µm, 10/pk
280959-907 61
Universal solvent fi
lter kit Includes
one 4.8 mm 2 µm frit, filter holder with inserts,
130 x 0.25 mm connecting capillary
01090-68703 167
Replacement frits, 4.8 mm, 2/pk 01090-27609 36
In-Line Filters