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Precolumns (guard columns) and precolumn Cartridges for HPLC

Separating columns with modern solid phases are critical components of HPLC analysis. It is important to protect these valuable ingredients from contamination to ensure optimal and consistent separation. In order to prolong the "life" of your HPLC columns, it is advisable to use precolumns. Precolumns offer the advantage in HPLC that they also retain molecules which would form an irreversible bond with the column material. The precolumns should be exchanged regularly. A good indication of the time of the exchange is a gradual increase in the back pressure: For more information, see the care and maintenance of HPLC columns. We carry a wide range of solid phase and stainless steel cartridges for HPLC and UHPLC from the best manufacturers.

 

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Guard Columns

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  1. Waters

    HPLC VanGuard Cartridge Holder

    Regular Price: $181.11

    Special Price $163.00

    sku: WT186007949
  2. Macherey-Nagel

    Column Protection System Guard Column Holder

    $162.00
    sku: MN718966
  3. Chiral

    GUARD CARTRIDGE HOLDER FOR HPLC COLUMNS

    $178.80
    sku: DAIC00081
  4. Macherey-Nagel

    VP Guard column holder 8 mm

    $250.00
    sku: MN718251
  5. Macherey-Nagel

    VP Guard column holder 32 mm (short)

    $486.00
    sku: MN718253
  6. Waters

    HPLC Guard Cartridge XTerra MS C18 125Å 5 µm 10 mm X 10 mm

    Regular Price: $283.33

    Special Price $255.00

    sku: WT186001001
  7. Waters

    HPLC Guard Cartridge XTerra MS C18 125Å 10 µm 10 mm X 10 mm

    Regular Price: $283.33

    Special Price $255.00

    sku: WT186001002
  8. Waters

    HPLC Guard Cartridge XTerra Shield RP18 125Å 5 µm 10 mm X 10 mm

    Regular Price: $283.33

    Special Price $255.00

    sku: WT186001006
  9. Waters

    HPLC Guard Cartridge XTerra Shield RP18 125Å 10 µm 10 mm X 10 mm

    Regular Price: $283.33

    Special Price $255.00

    sku: WT186001007
  10. Waters

    HPLC Guard Cartridge XTerra RP 8 125Å 5 µm 10 mm X 10 mm

    Regular Price: $283.33

    Special Price $255.00

    sku: WT186001008
  11. Waters

    HPLC Guard Cartridge XTerra RP 8 125Å 10 µm 10 mm X 10 mm

    Regular Price: $283.33

    Special Price $255.00

    sku: WT186001009
  12. Waters

    HPLC Guard Cartridge XTerra MS C18 125Å 10 µm 19 mm X 10 mm

    Regular Price: $482.22

    Special Price $434.00

    sku: WT186001034
  13. Waters

    HPLC Guard Cartridge XTerra MS C8 125Å 10 µm 19 mm X 10 mm

    Regular Price: $482.22

    Special Price $434.00

    sku: WT186001035
  14. Waters

    HPLC Guard Cartridge XTerra Shield RP18 125Å 10 µm 19 mm X 10 mm

    Regular Price: $482.22

    Special Price $434.00

    sku: WT186001036
  15. Waters

    HPLC Guard Cartridge XTerra RP 8 125Å 10 µm 19 mm X 10 mm

    Regular Price: $482.22

    Special Price $434.00

    sku: WT186001037
  16. Waters

    HPLC Guard Cartridge XTerra MS C18 125Å 5 µm 19 mm X 10 mm

    Regular Price: $482.22

    Special Price $434.00

    sku: WT186001104
  17. Waters

    HPLC Guard Cartridge XTerra MS C8 125Å 5 µm 19 mm X 10 mm

    Regular Price: $482.22

    Special Price $434.00

    sku: WT186001105
  18. Waters

    HPLC Guard Cartridge XTerra Shield RP18 125Å 5 µm 19 mm X 10 mm

    Regular Price: $482.22

    Special Price $434.00

    sku: WT186001106
  19. Waters

    HPLC Guard Cartridge XTerra RP 8 125Å 5 µm 19 mm X 10 mm

    Regular Price: $482.22

    Special Price $434.00

    sku: WT186001107
  20. Waters

    HPLC Guard Cartridge XTerra MS C18 125Å 5 µm 7.8 mm X 10 mm

    Regular Price: $277.78

    Special Price $250.00

    sku: WT186001168
  21. Waters

    HPLC Guard Cartridge XTerra MS C8 125Å 5 µm 7.8 mm X 10 mm

    Regular Price: $277.78

    Special Price $250.00

    sku: WT186001169
  22. Waters

    HPLC Guard Cartridge XTerra Shield RP18 125Å 5 µm 7.8 mm X 10 mm

    Regular Price: $277.78

    Special Price $250.00

    sku: WT186001170
  23. Waters

    HPLC Guard Cartridge XTerra RP 8 125Å 5 µm 7.8 mm X 10 mm

    Regular Price: $277.78

    Special Price $250.00

    sku: WT186001171
  24. Waters

    HPLC Guard Cartridge XTerra MS C18 125Å 10 µm 7.8 mm X 10 mm

    Regular Price: $277.78

    Special Price $250.00

    sku: WT186001172
  25. Waters

    HPLC Guard Cartridge XTerra MS C8 125Å 10 µm 7.8 mm X 10 mm

    Regular Price: $431.11

    Special Price $388.00

    sku: WT186001173
  26. Waters

    HPLC Guard Cartridge XTerra Shield RP18 125Å 10 µm 7.8 mm X 10 mm

    Regular Price: $277.78

    Special Price $250.00

    sku: WT186001174
  27. Waters

    HPLC Guard Cartridge XTerra RP 8 125Å 10 µm 7.8 mm X 10 mm

    Regular Price: $431.11

    Special Price $388.00

    sku: WT186001175
  28. Waters

    HPLC Guard Cartridge Symmetry Shield RP18 100Å 5 µm 19 mm X 10 mm

    Regular Price: $493.33

    Special Price $444.00

    sku: WT186001835
  29. Waters

    HPLC Guard Cartridge Symmetry Shield RP 8 100Å 5 µm 19 mm X 10 mm

    Regular Price: $493.33

    Special Price $444.00

    sku: WT186001841
  30. Waters

    HPLC Guard Cartridge Symmetry C18 300Å 5 µm 19 mm X 10 mm

    Regular Price: $493.33

    Special Price $444.00

    sku: WT186001847
  31. Waters

    HPLC Guard Column Envirogel GPC Cleanup, 15 µm, 4.6x30 mm

    Regular Price: $521.11

    Special Price $469.00

    sku: WT186001914
  32. Waters

    HPLC Guard Cartridge XTerra MS C18 125Å 5 µm 4.6 mm X 10 mm 3/PK

    Regular Price: $385.56

    Special Price $347.00

    sku: WT186001920
  33. Waters

    HPLC Guard Cartridge SunFire C18 100Å 10 µm 10 mm X 10 mm

    Regular Price: $283.33

    Special Price $255.00

    sku: WT186002663
  34. Waters

    HPLC Guard Cartridge SunFire C18 100Å 10 µm 19 mm X 10 mm

    Regular Price: $482.22

    Special Price $434.00

    sku: WT186002666
  35. Waters

    HPLC Guard Column MassPREP Phenyl, 10 mm 2.1 mm 20 µm 1000 Å 2/PAK

    Regular Price: $364.44

    Special Price $328.00

    sku: WT186002785
  36. Waters

    HPLC Guard Cartridge XBridge BEH Shield RP18 130Å 3.5 µm 3 mm X 20 mm 2/PK

    Regular Price: $385.56

    Special Price $347.00

    sku: WT186003069
  37. Waters

    HPLC Guard Cartridge XBridge BEH Shield RP18 130Å 3.5 µm 4.6 mm X 20 mm 2/PK

    Regular Price: $385.56

    Special Price $347.00

    sku: WT186003070
  38. Waters

    HPLC Guard Cartridge XBridge BEH Phenyl 130Å 5 µm 10 mm X 10 mm

    Regular Price: $317.78

    Special Price $286.00

    sku: WT186003354
  39. Waters

    HPLC Guard Cartridge XBridge BEH C18 135Å 10 µm 10 mm X 10 mm

    Regular Price: $317.78

    Special Price $286.00

    sku: WT186003889
  40. Waters

    HPLC Guard Cartridge XBridge BEH C18 130Å 10 µm 19 mm X 10 mm

    Regular Price: $482.22

    Special Price $434.00

    sku: WT186003892
  41. Waters

    HPLC Guard Cartridge XBridge BEH Shield RP18 130Å 10 µm 10 mm X 10 mm

    Regular Price: $317.78

    Special Price $286.00

    sku: WT186003988
  42. Waters

    HPLC Guard Cartridge XBridge BEH Shield RP18 130Å 10 µm 19 mm X 10 mm

    Regular Price: $482.22

    Special Price $434.00

    sku: WT186003991
  43. Waters

    HPLC Guard Cartridge XBridge BEH C8 130Å 10 µm 10 mm X 10 mm

    Regular Price: $317.78

    Special Price $286.00

    sku: WT186004003
  44. Waters

    HPLC Guard Cartridge XBridge BEH C8 130Å 10 µm 19 mm X 10 mm

    Regular Price: $482.22

    Special Price $434.00

    sku: WT186004006
  45. Waters

    HPLC Guard Column HSS T3 5µm 4.6x50mm

    Regular Price: $725.56

    Special Price $653.00

    sku: WT186004794
  46. Waters

    HPLC Guard Cartridge XSelect CSH Fluoro Phenyl 130Å 5 µm 19 mm X 10 mm

    Regular Price: $482.22

    Special Price $434.00

    sku: WT186005431
  47. Waters

    HPLC Guard Cartridge XSelect CSH Phenyl-Hexyl 130Å 5 µm 19 mm X 10 mm

    Regular Price: $482.22

    Special Price $434.00

    sku: WT186005444
  48. Waters

    HPLC Guard Cartridge XSelect CSH Fluoro Phenyl 130Å 5 µm 10 mm X 10 mm

    Regular Price: $317.78

    Special Price $286.00

    sku: WT186005498
  49. Waters

    SFC Guard Column ACQUITY UPC2 Viridis HSS C18 SB VanGuard, 100Å, 1.8 µm, 2.1x5 mm, 3/pkg

    Regular Price: $803.33

    Special Price $723.00

    sku: WT186006616
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Consistent Resolution in RP Chromatography

It makes sense to ensure consistent resolution in reverse-phase (RP) chromatography by removing non-polar contaminants, particularly in diagnostics applications and food analysis. With our large selection of stainless steel guard columns and stationary phases, we can meet your needs for HPLC hardware and consumables.

Whenever consistent resolution and reproducibility are required, e.g. in samples from biological matrices, our customers can select from a wide variety of bonded solid phases. From food analysis to forensic toxicology, the routine for every chromatographic method is to use column guards to protect your investment and to ensure consistent operations at only a fraction of the cost for a new HPLC or UHPLC column.

When using HPLC guard columns to protect the columns, a column holder is required. The following diagrams show you the connection possibilities when you need a precolumn to an HPLC column (column connectors have to be ordered separately):

Wide Range of Manufacturers:

We offer all trusted brands, such as Agilent Technologies, Chiral, Grace, Macherey Nagel and Sielc. As a cost-effective alternative, we carry a large selection of our own high quality brand Altmann Analytik.