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LiChrospher® RP-4 ADS Sorbent, 25 μm, 10 g Plastic Bottle - 150349

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LiChrospher® RP-4 ADS

Inner Diameter (I.D.): 4 mm
Length: 250 mm
Package Contents: 10 g Plastic Bottle 


LiChrospher® ADS allows the direct extraction and enrichment of hydrophobic, low molecular weight analytes from untreated samples such as haemolysed blood, plasma, serum, milk, salivary fluid, fermentation broth, supernatants of cell cultures and tissue as well as food homogenates.

LiChrospher® ADS sorbents belong to the family of restricted access materials (RAM) with two chemically different surfaces, a hydrophilic external surface and a hydrophobic inner surface. Extraction and fractionation is based on the simultaneous performance of two chromatographic processes: reversed phase/ion-pair chromatography and size exclusion chromatography.

Benefits of LiChrospher® ADS
  • Saves money and time: The high amount of analysis cycles, the direct injection of untreated biological fluids, and the fully automated system, extends column lifetime as well as saving time significantly
  • Improved precision, accuracy, and sensitivity
  • Quantitative elimination of protein matrix
  • On-column enrichment of analytes

Specifications of LiChrospher® ADS

Sorbent characteristics:Silica gel particles with two chemical different surface modifications
Particle shape: spherical
Surface modifications: 1. Exterior surface, 2. Interior surface (surface of pores), DIOL modification, C-4, C-8, or C-18 modification
Particle size: 25 μm
Pore size: 60 Å (6 nm)
pH range: pH 2-7.5


  • Model: 1.50349.0010
  • Manufactured by: Merck Chemicals