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Preparative Columns – VarioPrep (VP) columns

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VarioPrep

Preparative columns from Macherey-Nagel feature capillary connections with UNF inner threads 10-32 (1/16”), as with their analytical columns, thus meeting today’s standard in HPLC technology. They are manufactured from stainless steel and are packed with NUCLEOSIL® or NUCLEODUR® packings from range of silicas for HPLC. All packed columns are individually tested and supplied with the corresponding test certificate.

VarioPrep columns have been developed in order to allow compensation of the dead volume, which could result at the column inlet after some time of operation, without need for opening the column. This special column technology is available as columns with one adjustable end fitting at the column inlet and a fixed end fitting at the column end. On request, columns can be supplied with two adjustable end fittings, an option which may e.g. be useful for frequent use of back- flushing techniques. VarioPrep columns are available with lengths of 70, 125 and 250 mm and inner diameters of 8, 10, 21, 32, 40 and 80 mm. VarioPrep guard columns are 50 mm or 70 mm long.

Preparative columns can also be custom-packed with other types of NUCLEOSIL packings as well as with NUCLEODUR silicas. In addition, they can be made in lengths other than those indicated.

 

  • Column system for preparative HPLC manufactured from stainless steel with two adjustable end fittings, e. g. for frequent use of backflushing techniques
  • Allows compensation of a dead volume, which could result at the column inlet after some time of operation, without need for opening the column
  • Supplied with NUCLEODUR® and NUCLEOSIL® spherical silicas

 

VarioPrep Brochure 

 

Available standard dimensions of Varioprep columns · please ask for availability of certain phases
ID Length [mm] End fitting design
[mm] 10* 15* 50 75 100 125 150 250 500
8
10
16
21
32
40
50
80

 

* Guard columns for VarioPrep columns · Summary
VP guard column Size Pack of for VP column required holder REF
VP 10/8 10 x 8 mm ID 2 8 + 10 mm ID 8 mm 718251
VP 10/16 10 x 16 mm ID 2 16 + 21 mm ID 16 mm 718256
VP 15/32 15 x 32 mm ID 1 32 + 40 mm ID 32 mm 718253
VP 15/50 15 x 50 mm ID 1 ≥ 50 mm ID 50 mm 718255

 

Guard column holders and accessories for VP columns · Ordering information
Description Pack of REF
VP guard column holder 8 mm for VarioPrep
columns with 8 and 10 mm ID
1 718251
O-ring for VP guard column holder 8 mm 2 718975
VP guard column holder 16 mm for VarioPrep
columns with 16 and 21 mm ID
1 718256
O-ring for VP guard column holders 16 mm 2 718976
VP guard column holder 32 mm for VarioPrep
columns with 32 and 40 mm ID
1 718253
O-ring for VP guard column holder 32 mm 2 718977
VP guard column holder 50 mm for VarioPrep
columns with ≥ 50 mm ID
1 718255
O-ring for VP guard column holders 50 mm 2 718978
For further connecting accessories please click here.

Teknisk information:

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