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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:
10 mm
Particle Size:
5 µm
Pore Size:
120 Å
Chemistry:
Chiral
USP Class:
L93
Manufacturer:
Welch Materials
Delivery Time:
approx. 7 days
Bet Surface Area [m2/g]:
320.0
Base Material:
Cellulose tris(3,5-dimethylphenylcarbamate)
Mode of Separation:
Chiral Chromatography
Hardware Type:
Cartridges
Matrix:
Silica
Particle Morphology:
spherical, fully porous
pH Minimum:
2.0
pH Maximum:
9.0
Technology:
HPLC
Product Type:
HPLC Guard Cartridges
Length:
10 mm
Internal Diameter:
21.2 mm
Particle Size:
10 µm
Pore Size:
120 Å
Chemistry:
Chiral
USP Class:
L40
Manufacturer:
Welch Materials
Delivery Time:
approx. 7 days
Bet Surface Area [m2/g]:
320.0
Base Material:
Cellulose tris(3,5-dimethylphenylcarbamate)
Mode of Separation:
Chiral Chromatography
Hardware Type:
Cartridges
Matrix:
Silica
Particle Morphology:
spherical, fully porous
pH Minimum:
2.0
pH Maximum:
9.0
Technology:
HPLC
Product Type:
HPLC Guard Cartridges
Length:
10 mm
Internal Diameter:
21.2 mm
Particle Size:
10 µm
Pore Size:
120 Å
Chemistry:
C18 (RP-18, ODS, Octadecyl), C18 polar embedded
USP Class:
L1
Manufacturer:
Welch Materials
Delivery Time:
approx. 7 days
Endcapping:
endcapped
Carbon Load:
18.0 %
Bet Surface Area [m2/g]:
320.0
Mode of Separation:
Reversed Phase Chromatography (RP)
Hardware Type:
Cartridges
Matrix:
Silica
Particle Morphology:
spherical, fully porous
pH Minimum:
1.5
pH Maximum:
10.0
Technology:
HPLC
Product Type:
HPLC Guard Cartridges
Length:
10 mm
Internal Diameter:
21.2 mm
Particle Size:
5 µm
Pore Size:
120 Å
Chemistry:
C18 (RP-18, ODS, Octadecyl), C18 polar embedded
USP Class:
L1
Manufacturer:
Welch Materials
Delivery Time:
approx. 7 days
Endcapping:
endcapped
Carbon Load:
18.0 %
Bet Surface Area [m2/g]:
320.0
Mode of Separation:
Reversed Phase Chromatography (RP)
Hardware Type:
Cartridges
Matrix:
Silica
Particle Morphology:
spherical, fully porous
pH Minimum:
1.5
pH Maximum:
10.0
Technology:
HPLC
Product Type:
HPLC Guard Cartridges
Length:
10 mm
Internal Diameter:
10 mm
Particle Size:
5 µm
Pore Size:
120 Å
Chemistry:
C18 (RP-18, ODS, Octadecyl), C18 polar embedded
USP Class:
L1
Manufacturer:
Welch Materials
Delivery Time:
approx. 7 days
Endcapping:
endcapped
Carbon Load:
18.0 %
Bet Surface Area [m2/g]:
320.0
Mode of Separation:
Reversed Phase Chromatography (RP)
Hardware Type:
Cartridges
Matrix:
Silica
Particle Morphology:
spherical, fully porous
pH Minimum:
1.5
pH Maximum:
10.0
Technology:
HPLC
Product Type:
HPLC Guard Cartridges
Length:
10 mm
Internal Diameter:
21.2 mm
Particle Size:
10 µm
Pore Size:
120 Å
Chemistry:
Strong anion-exchange
USP Class:
L14
Manufacturer:
Welch Materials
Delivery Time:
approx. 7 days
Endcapping:
non endcapped
Carbon Load:
7.5 %
Bet Surface Area [m2/g]:
320.0
Mode of Separation:
Ion Exchange Chromatography
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:
10 µm
Pore Size:
120 Å
Chemistry:
Strong cation-exchange
USP Class:
L9
Manufacturer:
Welch Materials
Delivery Time:
approx. 7 days
Endcapping:
non endcapped
Carbon Load:
12.0 %
Bet Surface Area [m2/g]:
320.0
Mode of Separation:
Ion Exchange Chromatography
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:
300 Å
Chemistry:
Strong cation-exchange
USP Class:
L9
Manufacturer:
Welch Materials
Delivery Time:
approx. 7 days
Endcapping:
non endcapped
Carbon Load:
5.0 %
Bet Surface Area [m2/g]:
90.0
Mode of Separation:
Ion Exchange Chromatography
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:
300 Å
Chemistry:
C8 (RP-8, MOS, Octyl)
USP Class:
L7
Manufacturer:
Welch Materials
Delivery Time:
approx. 7 days
Mode of Separation:
Reversed Phase Chromatography (RP)
Hardware Type:
Cartridges
Matrix:
Silica
Particle Morphology:
spherical, fully porous
Technology:
HPLC
Product Type:
HPLC Guard Cartridges
Length:
10 mm
Internal Diameter:
30 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:
non endcapped
Carbon Load:
10.0 %
Bet Surface Area [m2/g]:
320.0
Mode of Separation:
Reversed Phase Chromatography (RP)
Hardware Type:
Cartridges
Matrix:
Silica
Particle Morphology:
spherical, fully porous
pH Minimum:
0.5
pH Maximum:
8.0
Technology:
HPLC
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