Macherey-Nagel GmbH

The professional concept of innovative SPE phases          

The CHROMABOND® HR-Xpert concept comprises 5 polymer-based RP and mixed-mode ion exchange phases. Depending on the character of the analytes it offers suitable adsorbents and optimal methods for sample preparation, cleaning and concentration.
 
The 5 CHROMABOND® HR-Xpert's are:
  • CHROMABOND® HR-X hydrophobic PS/DVB copolymer
  • CHROMABOND® HR-XC strong mixed-mode cation exchanger
  • CHROMABOND® HR-XA strong mixed-mode anion exchanger
  • CHROMABOND® HR-XCW weak mixed-mode cation exchanger
  • CHROMABOND® HR-XAW weak mixed-mode anion exchanger
Properties and fields of application of the CHROMABOND® HR-Xpert's:
  • CHROMABOND® - HR-X hydrophobic PS/DVB copolymer, neutral and polar active ingredients and analytes such as pesticides, drugs, phenols, PAHs, PCBs
  • CHROMABOND®  - HR-XC strong acidic mixed-mode benzenesulfonic acid cation exchanger,basic active ingredients and analytes such as amines (melamine), bases with pKa 2–10
  • CHROMABOND®  - HR-XA strong basic mixed-mode / quaternary ammonium anion exchanger,acidic active ingredients and analytes such as herbicides, acids with pKa 2–8
  • CHROMABOND®  - HR-XCW weak acidic mixed-mode / carboxylic acid cation exchanger, strongly basic active ingredients and analytes such as quaternary amines, bases with pKa > 10
  • CHROMABOND®  - HR-XAW weak basic mixed-mode / secondary/tertiary ammonium anion exchanger
    strongly acidic active ingredients and analytes such as sulfonic acids, perfluorinated surfactants, acids with pKa < 1