Search
Search
Quicklinks
Applications
Column Comparison
Tutorials
Contact
Distributors
Menu
Any Column and Size
Find any column by size
NanoFlow Columns
50 µm - 150 µm
MicroFlow Columns
0.3 mm - 1 mm
UHPLC Columns
1.5 mm - 2 mm
Analytical Columns
3 mm – 4.6 mm
SemiPrep Columns
6 mm - 8 mm
Rocket Columns
7 mm
Preparative Columns
> 10 mm
Guard Columns
0.3 mm – 8 mm
Packing Service
Any Media
Find any media by…
Dr. Maisch Phases
Other Phases
Separation Mode
Particle Type
Modifications
USP Code
Adsorbosil
Adsorbosphere
Adsorbosphere
Adsorbosphere HS
Adsorbosphere UHS
Adsorbosphere XL
Allsphere
Alphabond
Brava
Carbohydrates
ReproGel
Repromer
CT-Sil
Econosil
Econosphere
EcoPrep
EcoPrep 60
EcoPrep 120
Encapharm
Equisil
Equisil
Equisil BDS
Equisil Gold
Equisorb
Exsil
Exsil 80
Exsil 100
Exsil Pure 120
Exsil 300
Exsil Avanti
Exsil Avanti BDS
Exsil Clasico
Exsil Mono 100
Exsil NP
Gold-Turbo
GreatSmart
GromSil
Grom Resin
Grom Sapphire 65
Grom Sapphire 110
GromSil
GromSil 60
GromSil 80
GromSil 100
GromSil 120
GromSil 200
GromSil 300
Hypergrom
Spherigrom
Macrosphere
Macrosphere 300
Macrosphere SEC
Mixed Mode
ReproSil Mixed-Mode
Reprospher
Pharmsil
Platinum
Platinum
Platinum 300
Prosphere
Prosphere 300
Prosphere HP 300
ProZap
Reprobond
ReproGel GPC
ReproGel RP-1
ReproKrom
Repromer
Repromer OH
ReproPak
ReproPart
ReproShell
ReproSil
ReproSil
ReproSil 70
ReproSil 80
ReproSil 100
ReproSil 150
ReproSil 200
ReproSil 300
ReproSil BDS
ReproSil Chiral
ReproSil-DIBS
ReproSil Fluosil
ReproSil Gold
ReproSil Gold 120
ReproSil Gold 200
ReproSil Gold 300
ReproSil pHoenix
ReproSil-Pur
ReproSil-Pur 60
ReproSil-Pur 120
ReproSil-Pur 200
ReproSil-Pur 300
ReproSil-Pur 1000
ReproSil-Pur Basic
ReproSil Saphir
ReproSil Saphir 100
ReproSil Saphir 300
ReproSil Saphir 1000
ReproSil SEC
ReproSil Star
ReproSil XBD
ReproSil 100 XBD
ReproSil Gold 100 XBD
ReproSil-XR
ReproSil-XR 120
ReproSil-XR 300
Reprospher
Reprospher 100
Reprospher 200
Reprospher 300
Stability
Stability
Stability 100
Stability 120
Stability 300
Techsphere
Ultrasep
VisionHT
AmyCoat
CelluCoat
Chiradex
Chiraspher
Daicel (Chiralpak/Chiralcel)
Daisogel
Daisogel SP-60
Daisogel SP-100
Daisogel SP-120
Daisogel SP-200
Daisogel SP-300
Fluofix
Hamilton
Hypersil
Inertsil
Kromasil
Kromasil 60
Kromasil 100
Kromasil 300
Kromasil Chiral
Lichrosorb
Lichrosorb 60
Lichrosorb 100
Lichrospher
Lichrospher 60
Lichrospher 100
Lichrospher 300
Lichrospher 1000
µBondapak
Nucleosil
Nucleosil 50
Nucleosil 100
Nucleosil 120
Nucleosil 300
Nucleosil 500
Nucleosil 1000
Nucleosil 4000
Partisil
Poros
Prontosil
Prontosil 60
Prontosil 120
Prontosil 200
Prontosil 300
Purospher
Regis Technologies
Source
Spherisorb
Superspher
Superspher 60
Superspher 100
Ultron
Zorbax
Chiral
Chiral Chromatography enables the precise separation of enantiomers and stereoisomers with exceptional selectivity and reproducibility — a key technique for pharmaceutical, biochemical, and fine chemical analysis.
Gel Filtration (GFC/SEC)
Gel Filtration Chromatography (GFC), also known as Size Exclusion Chromatography (SEC), gently and reproducibly separates molecules by size in solution for the characterization and purification of water-soluble polymers, proteins, and biopolymers.
Gel Permeation (GPC)
Gel Permeation Chromatography (GPC) separates macromolecules by size in organic solvents, providing a reliable and interaction-free method for determining molecular weight and distribution of synthetic polymers.
HILIC
Hydrophilic Interaction Liquid Chromatography (HILIC) efficiently separates polar and hydrophilic compounds, bridging the gap between reversed phase and normal phase chromatography with full LC-MS compatibility.
Ion Exchange
Ion Exchange Chromatography (IEX) separates charged molecules via electrostatic interactions, providing high selectivity and robustness for proteins, peptides, nucleotides, and other ionic compounds.
Ion Exclusion
Ion Exclusion Chromatography (IEC) selectively separates organic acids, alcohols, and other weakly ionized compounds in aqueous systems by electrostatic exclusion, effectively distinguishing ionic from non-ionic species.
Normal Phase
Normal Phase Chromatography is a powerful liquid chromatography technique for separating polar compounds, offering excellent selectivity for positional, structural, and stereochemical isomers often unresolved by reversed phase methods.
Reversed Phase
Reversed Phase Chromatography is the most widely used HPLC mode, delivering exceptional versatility, reproducibility, and resolution for separating compounds ranging from small molecules to complex biomolecules.
SFC
Supercritical Fluid Chromatography (SFC) combines the efficiency of gas chromatography with liquid chromatography, enabling fast, high-resolution separations of chiral, nonpolar, and thermally sensitive compounds under mild conditions.
Core-Shell
Core–Shell silica particles feature a solid core and porous shell, providing high efficiency, faster separations, and reduced backpressure — the next generation of stationary phase technology for HPLC and UHPLC.
Silica / Fully Porous
Fully porous silica particles form the classical backbone of HPLC, offering high surface area, mechanical stability, and reproducible performance for analytical and preparative separations in all major chromatographic modes.
Silica / Organo Silica
Organosilica hybrid particles unite the mechanical strength of silica with the chemical stability of polymers, offering superior pH tolerance, durability, and long-term stability for modern chromatographic applications.
Silica / Non-Porous
Non-porous silica particles are solid spheres with smooth, high-purity surfaces, ideal for protein, peptide, and affinity separations that require rapid mass transfer, reproducibility, and surface-specific interactions.
Polymer
Polymer particles are versatile, chemically robust materials with tunable porosity and surface chemistry, ideal as stationary phases or functional supports for analytical and preparative chromatographic applications.
C18
C18-functionalized silica phases provide robust, versatile, and high-performance surfaces for reliable reversed-phase chromatographic separations.
C8
C8-functionalized silica phases deliver reliable, efficient, and versatile separations with balanced hydrophobic selectivity in reversed-phase chromatography.
C4
C4-functionalized silica phases offer balanced hydrophobic retention and high recovery, making them a dependable choice for precise separations of peptides and proteins.
C2
C2-functionalized silica phases deliver gentle hydrophobic selectivity and fast, reliable separations for highly polar or early-eluting analytes in reversed-phase chromatography.
C1
C1-functionalized silica phases deliver minimal hydrophobic selectivity and fast, precise separations for highly polar or weakly retained analytes in reversed-phase chromatography.
CN
CN-functionalized silica phases offer versatile polarity and reproducible performance for precise separations in both reversed-phase and normal-phase chromatography.
NH₂
NH₂-functionalized silica phases deliver versatile polar selectivity and robust performance for normal-phase, HILIC, and ion-exchange chromatographic separations.
Phenyl
Phenyl-functionalized silica phases provide reliable aromatic selectivity and balanced hydrophobic interactions for precise and reproducible reversed-phase separations.
SAX
SAX-functionalized silica phases deliver robust anion-exchange selectivity and reliable performance for high-resolution separations of negatively charged analytes.
SCX
SCX-functionalized silica phases offer robust cation-exchange selectivity and reliable, high-resolution separations for positively charged molecules.
Diol
Diol-functionalized silica phases deliver hydrophilic, interaction-minimized surfaces for reliable separations in SEC, normal-phase, and HILIC chromatography.
Si
Bare silica phases deliver strong polar selectivity, high efficiency, and reproducible performance for normal-phase, adsorption, and HILIC separations.
L1
L2
L3
L4
L7
L8
L9
L10
L11
L13
L14
L15
L16
L17
L18
L19
L20
L21
L22
L25
L26
L27
L30
L32
L33
L34
L36
L37
L38
L39
L40
L41
L43
L45
L47
L51
L52
L55
L56
L57
L58
L59
L60
L62
L63
L68
L70
L72
L73
L75
L78
L79
L80
L85
L87
L90
L93
L96
L107
Equipment
NanoFlow
MicroFlow & UHPLC
Analytical
Preparative
LongLife (DAC & SAC)
Repack Kits
MODcol® Spring® Columns
MODcol® MultiPacker® Instruments
Process LC Hardware
Support
Applications
Tutorials
Brochures
OEM
Technical Notifications
Column Comparison
Column Care Guide
Brick your own HPLC Column
Our Company
About us
Careers
News
Distributors
Charity
Contact
Home
Any Media
USP Code
L21
L21
A rigid, spherical styrene-divinylbenzene copolymer, 3 to 30 μm in diameter.
Specifications
Particle Sizes
5 – 15 µm
Pore Sizes
100 Å, 300 Å, 1 000 Å
Recommended Phases
Repromer 100 RPS
Repromer 300 RPS
Repromer 1000 RPS
Show all suitable Dr. Maisch columns
Columns suitable for L21
Particle Size
5 µm
8 µm
10 µm
15 µm
Pore Size
100 Å
300 Å
1 000 Å
Name
Particle Sizes
Carbon Load
Pore Size
Repromer 100 RPS
5 – 15 µm
100 Å
Repromer 300 RPS
5 – 10 µm
300 Å
Repromer 1000 RPS
8 – 10 µm
1 000 Å
L20
L22
Contact us
Any questions?
We are here to help you.
info@dr-maisch.com
+49 7073 5035 7
Follow us
