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CHROMABOND® HR-Xpert |
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 |
The CHROMABOND® HR-Xpert concept
for neutral, acidic and basic analytes |
3 paths – 1 goal: cleaner samples
Depending on the character of the analytes HR-Xpert offers suitable adsorbents and optimal method for sample preparation, cleaning and concentration. |
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strong bases
pKa > 10
CHROMABOND®
HR-XCW |
acids
pKa 2–8
CHROMABOND®
HR-XA |
neutral
compounds
CHROMABOND®
HR-X |
strong acids
pKa < 1
CHROMABOND®
HR-XAW |
bases
pKa 2–10
CHROMABOND®
HR-XC |
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strong
bases |
acidic
compounds |
neutral
compounds* |
strong
acids |
basic
compounds |
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* under organic washing and elution conditions the following compounds will be also eluted: |
HR-X: polar compounds such as organic acids and bases
HR-XC / HR-XCW: acidic components / impurities
HR-XA / HR-XAW: basic components / impurities |
. . . the HR-Xpert concept guarantees: |
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RP and mixed-mode SPE phases with distinct ion and RP properties
your benefit → excellent neutral, acidic and basic analytes |
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modern, spherical support polymer with optimized pore structure and high surface
your benefit → good reproducibility, reliable and cost-efficient analysis |
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possibility for more aggressive washing procedures for matrix removal
your benefit → cleaner samples and protection of your HPLC and GC instruments |
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quantification of analytes also from heavily contaminated samples
your benefit → lower limits of detection also for critical matrices |
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. . . the perfect combination for all tasks in sample preparation |
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