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Guard Columns, Precolumns 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. Altmann Analytik

    Universal Reversed Phase (RP) pre-column cartridge

    Regular Price: $160.13

    Special Price $152.12

    sku: AAVRP-501040-5
  2. Chiral

    GUARD CARTRIDGE HOLDER FOR HPLC COLUMNS

    $171.35
    sku: DAIC00081
  3. Thermo Fisher Scientific

    UNIGUARD Drop-in Holder, 4.6/4.0mm

    $158.98
    sku: TF850-00
  4. Thermo Fisher Scientific

    UNIGUARD Drop-in Holder, 3.0/2.1mm

    $158.98
    sku: TF852-00
  5. Macherey-Nagel

    Column Protection System Guard Column Holder

    $162.00
    sku: MN718966
  6. Altmann Analytik

    Guard Column Holder direct, 5 x 4 mm

    $138.00
    sku: AAHD-0540
  7. Altmann Analytik

    Guard Column Holder direct, 5 x 4,6 mm

    $82.80
    sku: AAHD-0546
  8. Altmann Analytik

    indirect Guard Cartridge Holder, 10x3mm

    $151.80
    sku: AAHI-01030
  9. Altmann Analytik

    Guard Column Holder indirect, 10 x 4 mm

    $151.80
    sku: AAHI-01040
  10. Altmann Analytik

    Guard Column Holder indirect, 5 x 2 mm

    $124.20
    sku: AAHI-0520
  11. Altmann Analytik

    Guard Column Holder indirect, 5 x 4 mm

    $138.00
    sku: AAHI-0540
  12. Macherey-Nagel

    EC 4/3 NUCLEOSIL 100-5 C18

    $151.00
    sku: MN721074.30
  13. Nacalai Tesque

    COSMOSIL 5C18-MS-II Guard Column, 4.6mmI.D. x 10mm

    $210.11
    sku: CO-38014-31
  14. Altmann Analytik

    Universal Reversed Phase (RP) pre-column cartridge

    Regular Price: $153.72

    Special Price $146.03

    sku: AAVRP-500520-5
  15. Altmann Analytik

    Universal Reversed Phase (RP) pre-column cartridge

    Regular Price: $153.72

    Special Price $146.03

    sku: AAVRP-500540-5
  16. Altmann Analytik

    Universal Reversed Phase (RP) pre-column cartridge

    Regular Price: $160.13

    Special Price $152.12

    sku: AAVRP-501020-5
  17. Altmann Analytik

    Universal Reversed Phase (RP) pre-column cartridge

    Regular Price: $147.32

    Special Price $139.95

    sku: AAVRP-201040-5
  18. Altmann Analytik

    Guard Column Holder direct, 10 x 2 mm

    $144.90
    sku: AAHD-01020
  19. Altmann Analytik

    Guard Column Holder direct, 10 x 4 mm

    $151.80
    sku: AAHD-01040
  20. Altmann Analytik

    Guard Column Holder indirect, 10 x 4,6 mm

    $151.80
    sku: AAHI-01046
  21. Macherey-Nagel

    EC 4/3 NUCLEOSIL 100-3 C18

    $151.00
    sku: MN721022.30
  22. Macherey-Nagel

    EC 4/3 NUCLEOSIL 120-5 C4

    $151.00
    sku: MN721083.30
  23. Macherey-Nagel

    EC 4/3 NUCLEOSIL CHIRAL-2/3

    $112.00
    sku: MN721190.30
  24. Macherey-Nagel

    EC 4/3 NUCLEOSIL 100-5 C8

    $151.00
    sku: MN721194.30
  25. Macherey-Nagel

    EC 4/3 NUCLEOSIL 100-3 C18 NAUTILUS

    $151.00
    sku: MN721649.30
  26. Macherey-Nagel

    EC 4/2 NUCLEODUR C18 Pyramid, 3 µm

    $151.00
    sku: MN761916.20
  27. Macherey-Nagel

    EC 4/3 NUCLEODUR SPHINX RP, 5 µm

    $151.00
    sku: MN761922.30
  28. Macherey-Nagel

    EC 4/2 NUCLEODUR C18 HTec, 5 µm

    $151.00
    sku: MN761927.20
  29. Macherey-Nagel

    EC 4/3 NUCLEODUR 100-5 C18 ec

    $151.00
    sku: MN761932.30
  30. Macherey-Nagel

    EC 4/3 NUCLEODUR 100-3 NH2-RP

    $151.00
    sku: MN761951.30
  31. Macherey-Nagel

    EC 4/3 NUCLEODUR PolarTec, 5 µm

    $151.00
    sku: MN761982.30
  32. Macherey-Nagel

    HPLC Column EC 4/2 NUCLEODUR Phenyl-Hexyl, 1.8 µm

    $151.00
    sku: MN761985.20
  33. Macherey-Nagel

    EC 4/3 NUCLEODUR Phenyl-Hexyl, 5 µm

    $151.00
    sku: MN761987.30
  34. Thermo Fisher Scientific

    HPLC Guard Cartridge Acclaim Trinity P1, 3µm 2.1 x 10mm, 2/PAK

    $193.48
    sku: TF071391
  35. Upchurch Scientific

    HPLC guard column, 2mm x 2cm, 1pc/PAK

    $167.43
    sku: UPC-130B
  36. Whatman

    Guard Cartridge SCX 5/PAK

    Regular Price: $241.14

    Special Price $229.08

    sku: WH4641-0007
  37. Altmann Analytik

    Guard Column Cartridge Hamilton PRP-X 100 10µm 5 x 4,6, 5/PAK

    Regular Price: $269.01

    Special Price $255.56

    sku: AAVHAPRX1-100546-5
  38. Altmann Analytik

    Guard Column Cartridge Lichrospher 100 Si 5µm 10 x 4, 5/PAK

    Regular Price: $174.86

    Special Price $166.12

    sku: AAVLI1S-501040-5
  39. Upchurch Scientific

    Semi-Prep Guard Assembly 10mm x 1cm, 1pc/PAK

    $77.41
    sku: UPC-1035
  40. Whatman

    Partisil 10 SCX 4.6x250mm with Solvecon Guard Column 1/PAK

    Regular Price: $1,057.95

    Special Price $1,005.05

    sku: WH4251-001
  41. Agilent Technologies

    GUARD CARTRidGE HOLDER

    $200.10
    sku: AGPL1310-0016
  42. Thermo Fisher Scientific

    Acclaim SST Guard Cartridge Holder V-2

    $193.48
    sku: TF069580
  43. Thermo Fisher Scientific

    Acclaim Guard Kit (Holder and coupler) V-2

    $206.45
    sku: TF069707
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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.