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Ult3LP18220

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Ult3LP18220
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Ultisil LP-C18

by Welch Materials

LP is abbreviation for Low pH. LP phases are designed for use at low pH condition. LP phase consists of two very bulky hydrophobic protective groups to prevent siloxane bond from hydrolysis at low pH condition. So the LP column is extremely stable in very low pH mobile phase and at high temperature, even at the lowest pH 1.0, making it the most stable C18 for low pH application in the market. Because LP phase is not endcapped and has more surface silanols, LP phase has more retention for some early eluted polar compounds, and provides some different selectivity than traditional C18. LP-C18 is the most polar C18 among all the C18 products of Welch.

  • The characteristics of LP Columns: LP-C18 and LP-C8
  • Not end-capped
  • Endure 100% water as the mobile phase
  • Best peak shape for polar compounds analysis
  • Exceptional lifetime at low pH (1.0-8.0)
Application areas:
Polar compounds
Specification
Vendor Welch Materials Pore size 120
Brand Ultisil LP-C18 Surface Area 320
Modifification Silica/C18 Carbon Load, % 10.0
Mode Reversed-Phase Endcapped No
Particle Size pH stability from 1.0
Length pH stability to 8.0
Internal Diameter
Similar columns Columns with same mode & modification — across all brands
VendorBrandModeModification Int. diam.LengthParticlesPoresPrice
Welch Materials Ultisil AQ-C18 Reversed-Phase Silica/C18 4.6 mm 50 mm 3.0 μm 120 Å On request
GRACE Alltima HP C18 Hi-Load Reversed-Phase Silica/C18 3.0 mm 150 mm 3.0 μm 100 Å On request
Luknova Poro C18-300 Reversed-Phase Silica/C18 21.2 mm 100 mm 10.0 μm 300 Å On request
ES Industries Chromegabond 60 MC-18 Reversed-Phase Silica/C18 2.0 mm 250 mm 10.0 μm 60 Å On request
Fortis Technologies UniverSil HS C18 Reversed-Phase Silica/C18 3.0 mm 100 mm 3.0 μm 100 Å On request
Agilent Technologies Pursuit XRs Ultra Reversed-Phase Silica/C18 2.0 mm 50 mm 2.8 μm 100 Å On request
Higgins Analytical CLIPEUS C18 Reversed-Phase Silica/C18 4.0 mm 30 mm 5.0 μm 120 Å On request
Princeton Chromatography Inc. PrincetonSPHER ODS Reversed-Phase Silica/C18 3.0 mm 75 mm 3.0 μm — On request
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