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HPLC Column Protection
To protect the separation column from contamination and/or premature ageing, we recommend using either guard columns, guard cartridges or pre-column filters. In addition, it is recommended that each analyte solution is filtered through a syringe filter (0.45 µm or 0.2 µm) before injection in order to minimise the proportion of dust particles and suspended particles. So-called Ghost-Guard-LC columns effectively protect the separation column from non-polar impurities from the mobile phase and thus eliminate the problem of unwanted ghost peaks or poor baselines.
Categories
Product Type:
HPLC Guard Cartridges
Length:
10 mm
Internal Diameter:
21.2 mm
Particle Size:
10 µm
Pore Size:
120 Å
Chemistry:
C8 (RP-8, MOS, Octyl)
USP Class:
L7
Manufacturer:
Welch Materials
Delivery Time:
approx. 7 days
Endcapping:
endcapped
Carbon Load:
10.0 %
Bet Surface Area [m2/g]:
320.0
Mode of Separation:
Reversed Phase Chromatography (RP)
Hardware Type:
Cartridges
Matrix:
Hybrid
Particle Morphology:
spherical, fully porous
pH Minimum:
1.0
pH Maximum:
12.5
Technology:
HPLC
Product Type:
HPLC Guard Cartridges
Length:
10 mm
Internal Diameter:
10 mm
Particle Size:
5 µm
Pore Size:
120 Å
Chemistry:
C8 (RP-8, MOS, Octyl)
USP Class:
L7
Manufacturer:
Welch Materials
Delivery Time:
approx. 7 days
Endcapping:
endcapped
Carbon Load:
10.0 %
Bet Surface Area [m2/g]:
320.0
Mode of Separation:
Reversed Phase Chromatography (RP)
Hardware Type:
Cartridges
Matrix:
Hybrid
Particle Morphology:
spherical, fully porous
pH Minimum:
1.0
pH Maximum:
12.5
Technology:
HPLC
Product Type:
HPLC Guard Cartridges
Length:
10 mm
Internal Diameter:
30 mm
Particle Size:
5 µm
Pore Size:
120 Å
Chemistry:
C18 (RP-18, ODS, Octadecyl)
USP Class:
L1
Manufacturer:
Welch Materials
Delivery Time:
approx. 7 days
Endcapping:
endcapped
Carbon Load:
14.0 %
Bet Surface Area [m2/g]:
320.0
Mode of Separation:
Reversed Phase Chromatography (RP)
Hardware Type:
Cartridges
Matrix:
Hybrid
Particle Morphology:
spherical, fully porous
pH Minimum:
1.0
pH Maximum:
12.5
Technology:
HPLC
Product Type:
HPLC Guard Cartridges
Length:
10 mm
Internal Diameter:
10 mm
Particle Size:
10 µm
Pore Size:
120 Å
Chemistry:
C18 (RP-18, ODS, Octadecyl)
USP Class:
L1
Manufacturer:
Welch Materials
Delivery Time:
approx. 7 days
Endcapping:
endcapped
Carbon Load:
14.0 %
Bet Surface Area [m2/g]:
320.0
Mode of Separation:
Reversed Phase Chromatography (RP)
Hardware Type:
Cartridges
Matrix:
Hybrid
Particle Morphology:
spherical, fully porous
pH Minimum:
1.0
pH Maximum:
12.5
Technology:
HPLC
Product Type:
HPLC Guard Cartridges
Length:
10 mm
Internal Diameter:
10 mm
Particle Size:
5 µm
Pore Size:
120 Å
Chemistry:
HILIC
USP Class:
L114
Manufacturer:
Welch Materials
Delivery Time:
approx. 7 days
Carbon Load:
6.0 %
Bet Surface Area [m2/g]:
320.0
Mode of Separation:
Hydrophilic Interaction Chromatography (HILIC)
Hardware Type:
Cartridges
Matrix:
Silica
Particle Morphology:
spherical, fully porous
pH Minimum:
2.0
pH Maximum:
8.0
Technology:
HPLC
Product Type:
HPLC Guard Cartridges
Length:
10 mm
Internal Diameter:
10 mm
Particle Size:
5 µm
Pore Size:
120 Å
Chemistry:
Amide
USP Class:
L68
Manufacturer:
Welch Materials
Delivery Time:
approx. 7 days
Carbon Load:
7.0 %
Bet Surface Area [m2/g]:
320.0
Mode of Separation:
Hydrophilic Interaction Chromatography (HILIC)
Hardware Type:
Cartridges
Matrix:
Silica
Particle Morphology:
spherical, fully porous
pH Minimum:
2.0
pH Maximum:
8.0
Technology:
HPLC
Product Type:
HPLC Guard Cartridges
Length:
10 mm
Internal Diameter:
21.2 mm
Particle Size:
5 µm
Pore Size:
120 Å
Chemistry:
Amide
USP Class:
L68
Manufacturer:
Welch Materials
Delivery Time:
approx. 7 days
Carbon Load:
7.0 %
Bet Surface Area [m2/g]:
320.0
Mode of Separation:
Hydrophilic Interaction Chromatography (HILIC)
Hardware Type:
Cartridges
Matrix:
Silica
Particle Morphology:
spherical, fully porous
pH Minimum:
2.0
pH Maximum:
8.0
Technology:
HPLC
Product Type:
HPLC Guard Cartridges
Length:
10 mm
Internal Diameter:
10 mm
Particle Size:
10 µm
Pore Size:
120 Å
Chemistry:
Amide
USP Class:
L68
Manufacturer:
Welch Materials
Delivery Time:
approx. 7 days
Carbon Load:
7.0 %
Bet Surface Area [m2/g]:
320.0
Mode of Separation:
Hydrophilic Interaction Chromatography (HILIC)
Hardware Type:
Cartridges
Matrix:
Silica
Particle Morphology:
spherical, fully porous
pH Minimum:
2.0
pH Maximum:
8.0
Technology:
HPLC
Product Type:
HPLC Guard Cartridges
Length:
10 mm
Internal Diameter:
30 mm
Particle Size:
5 µm
Pore Size:
120 Å
Chemistry:
Silica
USP Class:
L3
Manufacturer:
Welch Materials
Delivery Time:
approx. 7 days
Endcapping:
non endcapped
Bet Surface Area [m2/g]:
320.0
Mode of Separation:
Hydrophilic Interaction Chromatography (HILIC)
Hardware Type:
Cartridges
Matrix:
Silica
Particle Morphology:
spherical, fully porous
pH Minimum:
2.0
pH Maximum:
8.0
Technology:
HPLC
Product Type:
HPLC Guard Cartridges
Length:
10 mm
Internal Diameter:
10 mm
Particle Size:
5 µm
Pore Size:
120 Å
Chemistry:
Silica
USP Class:
L3
Manufacturer:
Welch Materials
Delivery Time:
approx. 7 days
Endcapping:
non endcapped
Bet Surface Area [m2/g]:
320.0
Mode of Separation:
Hydrophilic Interaction Chromatography (HILIC)
Hardware Type:
Cartridges
Matrix:
Silica
Particle Morphology:
spherical, fully porous
pH Minimum:
2.0
pH Maximum:
8.0
Technology:
HPLC
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