Xtimate HPLC column derives its outstanding performance from a special hybrid partic le based technique, which coats a unique 5nm organic/inorganic polymer layer on the silica surface, so that the pH range is extended to 1.0-12.5.
Xtimate column is designed for HPLC method development. Regardless of the types of mobile phase or high temperature, Xtimate HPLC column always has stable performance and long lifetime.
X features of Xtimate column
- eXtra pH range: wide pH range from 1.0 to 12.5, excellent peak shape for strong bases
- eXtra column lifetime: 5 times of similar product such as Gemini
- eXtra performance: column efficiency of 5μm columns is as high as 90000/m, 2-3 times of that of Xterra
- eXtra care from Welch: enjoy excellent pre-sales and after-sales service from Welch
SEM Pictures of Ultisil Particles
Comparison of Peak Shape After Soaking In Base
After test at pH 12 condition for 4h, the peak shape of hybrid particles based Xtimate column shows no difference.
Lifetime Test Comparison: 5 Times Longer Than Gemini
Unprecedented Peak Shape
At mid pH, strong bases usually exhibit bad tailing due to secondary interactions between the analytes and the surface silaols. In Welch’s unique technique, the hybrid layer totally covers the surface silanols and blocks analytes’ access to these surface silanols. Improved bonding and endcapping further reduce silanol activity. As a result, hybrid particle based Xtimate columns show unprecedented peak shape.
Brand: Xtimate
Phase: XTI-C18
Particle Size: 5μm
Pore Size: 120Å
USP Classification: L1
Separation Mode: Reversed Mode
pH Range: 1.0-12.5
Surface Area: 320m2/g
Carbon Load: 14%
Max.Pressure: 40Mpa
Endcapped: Yes
Max.Temp.: 70°C(pH≤6.5) and 40°C(pH>6.5)
Particle Shape: Spherical
Xtimate HPLC column derives its outstanding performance from a special hybrid partic le based technique, which coats a unique 5nm organic/inorganic polymer layer on the silica surface, so that the pH range is extended to 1.0-12.5.
Xtimate column is designed for HPLC method development. Regardless of the types of mobile phase or high temperature, Xtimate HPLC column always has stable performance and long lifetime.
X features of Xtimate column
- eXtra pH range: wide pH range from 1.0 to 12.5, excellent peak shape for strong bases
- eXtra column lifetime: 5 times of similar product such as Gemini
- eXtra performance: column efficiency of 5μm columns is as high as 90000/m, 2-3 times of that of Xterra
- eXtra care from Welch: enjoy excellent pre-sales and after-sales service from Welch
SEM Pictures of Ultisil Particles
Comparison of Peak Shape After Soaking In Base
After test at pH 12 condition for 4h, the peak shape of hybrid particles based Xtimate column shows no difference.
Lifetime Test Comparison: 5 Times Longer Than Gemini
Unprecedented Peak Shape
At mid pH, strong bases usually exhibit bad tailing due to secondary interactions between the analytes and the surface silaols. In Welch’s unique technique, the hybrid layer totally covers the surface silanols and blocks analytes’ access to these surface silanols. Improved bonding and endcapping further reduce silanol activity. As a result, hybrid particle based Xtimate columns show unprecedented peak shape.
Brand: Xtimate
Phase: XTI-C18
Particle Size: 5μm
Pore Size: 120Å
USP Classification: L1
Separation Mode: Reversed Mode
pH Range: 1.0-12.5
Surface Area: 320m2/g
Carbon Load: 14%
Max.Pressure: 40Mpa
Endcapped: Yes
Max.Temp.: 70°C(pH≤6.5) and 40°C(pH>6.5)
Particle Shape: Spherical