Analytical EC column. NUCLEOSIL® 100-5 particle size 5 µm, pore size 100 Å
Analytical EC column. NUCLEOSIL® 100-5 C6H5 particle size 5 µm, pore size 100 Å, not endcapped
VarioPrep HPLC column NUCLEODUR C18 Htech, 7 µm *** with adjustable Endfitting *** base-deactivated preparative octadecyl phase · USP L1 Key feature · Reliable and durable standard RP phase for up-scaling to preparative scale, suited for LC/MS · High loading capacity and excellent stability · Outstanding base deactivation Technical data · High density octadecyl modiication (C18); pore size 110 Å; particle sizes 1.8 μm, 3 μm, 5 μm, 7 μm and 10 μm for analytical and preparative separations; carbon content 18 %, pH stability 1–11 Recommended application · Sophisticated analytical and preparative separations of basic, neutral and acidic pharmaceuticals, derivatized amino acids, pesticides, fat-soluble vitamins, aldehydes, ketones and phenolic compounds
VarioPrep HPLC column NUCLEODUR C18 Htech, 5 µm *** with adjustable Endfitting *** base-deactivated preparative octadecyl phase · USP L1 Key feature · Reliable and durable standard RP phase for up-scaling to preparative scale, suited for LC/MS · High loading capacity and excellent stability · Outstanding base deactivation Technical data · High density octadecyl modiication (C18); pore size 110 Å; particle sizes 1.8 μm, 3 μm, 5 μm, 7 μm and 10 μm for analytical and preparative separations; carbon content 18 %, pH stability 1–11 Recommended application · Sophisticated analytical and preparative separations of basic, neutral and acidic pharmaceuticals, derivatized amino acids, pesticides, fat-soluble vitamins, aldehydes, ketones and phenolic compounds
VarioPrep NUCLEODUR® PolarTec, 5 µm *** with adjustable Endfitting *** Octadecyl phase with embedded polar group endcapped · 17 % C · USP L1 / L60. Excellent base deactivation Suitable for LC/MS and 100 % aqueous eluents Pronounced steric selectivity Technical characteristics: Phase with embedded polar group; endcapped; pore size 110 Å; particle sizes 1.8 µm, 3 µm and 5 µm; carbon content 17 %; pH stability 1–9 Recommended application: Exceptional selectivity for phenols and nitrogen containing compounds, polar compounds like basic pharmaceuticals, organic acids, pesticides, amino acids, water soluble vitamins, etc.
VarioPrep HPLC column NUCLEODUR® PFP *** with adjustable Endfitting *** base-deactivated preparative octadecyl phase · USP L1 Key feature: · Reliable and durable standard RP phase for up-scaling to preparative scale, suited for LC/MS · High loading capacity and excellent stability · Outstanding base deactivation Technical data: · High density octadecyl modiication (C18); pore size 110 Å; particle sizes 1.8 μm, 3 μm, 5 μm, 7 μm and 10 μm for analytical and preparative separations; carbon content 18 %, pH stability 1–11 Recommended application: · Sophisticated analytical and preparative separations of basic, neutral and acidic pharmaceuticals, derivatized amino acids, pesticides, fat-soluble vitamins, aldehydes, ketones and phenolic compounds
VarioPrep columns NUCLEODEUR SPHINX RP Bifunctional RP phase, balanced ratio of propylphenyl and C18 ligands endcapped · 15 % C · USP L1 / L11. Distinct selectivity based on well-balanced bifunctional surface coverage Widens the scope for method development based on additional π-π interactions Suitable for LC/MS due to low bleeding characteristics Technical characteristics: Octadecyl and propylphenyl modified silica pore size 110 Å; particle sizes 1.8 μm, 3 μm and 5 μm carbon content 15 %; pH stability 1–10; high reproducibility Recommended application: Quinolone antibiotics, sulfonamides, xanthines, substituted aromatics
Analytical EC column, zwitterionic phase Core-shell technology for fast and eicient HPLC Ideal for reproducible and stable chromatography of highly polar analytes ·Very short column equilibration times Technical data Ammonium - sulfonic acid modiied silica; pore size 90 Å, particle size 2.7 μm; carbon content 1.3 %; pH stability 2–8.5; suitable for LC/MS Recommended application Hydrophilic compounds such as polar organic acids and bases, polar natural compounds, nucleosides, oligonucleotides, amino acids, peptides, water-soluble vitamins
Analytical EC column Phenyl-Hexyl nonpolar high density phase · USP L11 Based on core-shell particle technology for fast and eicient HPLC Hydrophobic phase with alternative selectivity compared to classical C18 modiications Separation principle based on 2 retention mechanisms: π-π interactions and hydrophobic interactions Technical data: Phenyl-Hexyl modiication, multi-endcapped; pore size 90 Å, particle size 2.7 μm; carbon content 4.5 %; pH stability 1–10; suitable for LC/MS Recommended application · Aromatic and unsaturated compounds, polar compounds like pharmaceuticals, antibiotics
Analytical EC column. PFP hydrophobic pentaluorophenyl phase · USP L43 Core-shell technology for fast and eicient HPLC Hydrophobic phase with alternative selectivity in comparison to classical C18 modiications Separation principle based on 4 retention mechanisms (polar interactions (H bonds), dipole-dipole, π-π, hydrophobic interactions) Technical data Phase with pentaluorophenylpropyl modiication, multi-endcapping; pore size 90 Å, particle size 2.7 μm; carbon content ~ 3 %; pH stability 1–9; suitable for LC/MS Recommended application Aromatic and unsaturated compounds, phenols, halogen compounds, isomers, polar compounds like pharmaceuticals, antibiotics; strong retention of basic compounds
Analytical EC column. NUCLEOSIL® 100-7 C6H5 particle size 7 µm, pore size 100 Å, not endcapped
Analytical EC column. NUCLEOSIL® 100-5 C8 ec particle size 5 µm, pore size 100 Å, endcapped, 9 % C
Analytical EC column. NUCLEOSIL® 100-5 N(CH3)2 particle size 5 µm, pore size 100 Å
Analytical EC column. These HPLC columns are packed with polar aminopropyl modification, based on the original NUCLEOSIL silica gel.
Analytical EC column. NUCLEOSIL® 100-5 OH (Diol) particle size 5 µm, pore size 100 Å. Technical data: · Dihydroxypropyl modiied silica for RP and NP chromatography · Less polar than unmodiied silica, very easily wettable with water · pH stability at 20 °C: 2-8; carbon content 5 %
Analytical EC column. NUCLEOSIL® dimethyl phase (C2) · USP L16 Technical data · Non-endcapped phase for RP and ion-pairing chromatography · pH stability at 20 °C: 2–8; carbon content 3.5 % · Retention times are much shorter than for the other RP phases
Analytical EC column. NUCLEOSIL® SiOH unmodiied silica · USP L3 Technical data · Spherical silica, pH stability 2–8 · Maximum working pressure for the EC columns listed below is 400 bar
Analytical EC column. NUCLEOSIL® 50-5 C18 ec particle size 5 µm, pore size 50 Å, endcapped, 14.5 % C
Analytical EC column NUCLEOSHELL® HILIC zwitterionic phase Core-shell technology for fast and eicient HPLC Ideal for reproducible and stable chromatography of highly polar analytes Very short column equilibration times Technical data Ammonium - sulfonic acid modiied silica; pore size 90 Å, particle size 2.7 μm; carbon content 1.3 %; pH stability 2–8.5; suitable for LC/MS Recommended application Hydrophilic compounds such as polar organic acids and bases, polar natural compounds, nucleosides, oligonucleotides, amino acids, peptides, water-soluble vitamins
Preparative VarioPrep columns. NUCLEODUR® SiOH unmodiied silica for normal phase · USP L3 Key feature: · Totally spherical high purity silica · Pressure stable up to 600 bar · Suitable for analytical and preparative separation of polar and midpolar compounds Technical data: · Unmodiied high purity silica; pore size 110 Å; particle sizes 3 to 50 μm; pore volume 0.9 mL/g; surface area (BET) 340 m2/g; pH stability 2–8; metal content < 10 ppm Recommended application · Polar and midpolar compounds under normal phase conditions
Preparative VarioPrep columns. NUCLEODUR® C8 Gravity nonpolar high density phase · USP L7 Key feature: · Suitable for LC/MS and HPLC at pH extremes (pH 1–11) · Superior base deactivation · Ideal for method development Technical data: · Available as octadecyl (C18) and octyl (C8 ), multi-endcapped · Pore size 110 Å; particle sizes 7, 10, 12 and 16 μm particles for preparative purposes on request · Carbon content 18 % for C18, 11 % for C8 Recommended application: · Overall sophisticated analytical separations · Compound classes separated include pharmaceuticals, e.g., analgesics, anti-inlammatory drugs, antidepressants; herbicides; phytopharmaceuticals; immunosuppressants
Analytical EC column, phase for highly aqueous eluents. Stable in 100 % aqueous mobile phase systems Interesting polar selectivity features Excellent base deactivation; suitable for LC/MS due to low bleeding characteristics Technical characteristics: Special phase with polar endcapping; pore size 110 Å; particle sizes 1.8 μm, 3 μm and 5 μm (7 and 10 μm particles for preparative purposes on request); carbon content 14 %; pH stability 1–9 Recommended application: Analgesics, penicillin antibiotics, nucleic acid bases, water-soluble vitamins, complexing agents, organic acids USP L1
EC HPLC column NUCLEODUR® C18 ec ∙ C8 ec nonpolar phases for routine analysis Key features: • Ideal and reliable standard RP phase for daily routine analysis and up-scaling for preparative HPLC • Medium density octadecyl (C18) and octyl (C8) modification with exhaustive endcapping • Wide range of application areas Technical characteristics: Pore size 110 Å; particle sizes 3 μm and 5 μm; 7 μm, 10 μm, 12 μm, 16 μm, 20 μm, 30 μm and 50 μm for preparative separations; carbon content 17.5 % for C18, 10.5 % for C8 pH stability 1–9, high reproducibility from lot to lot Recommended application: Basic, neutral or acidic drugs, derivatized amino acids, pesticides fat-soluble vitamins, aldehydes and ketones, phenolic compounds USP L1 (C18) / L7 (C8)
EC HPLC column NUCLEODUR® C18 ec ∙ C8 ec nonpolar phases for routine analysis Key features: • Ideal and reliable standard RP phase for daily routine analysis and up-scaling for preparative HPLC • Medium density octadecyl (C18) and octyl (C8) modification with exhaustive endcapping • Wide range of application areas Technical characteristics: Pore size 110 Å; particle sizes 3 μm and 5 μm; 7 μm, 10 μm, 12 μm, 16 μm, 20 μm, 30 μm and 50 μm for preparative separations; carbon content 17.5 % for C18, 10.5 % for C8 pH stability 1–9, high reproducibility from lot to lot Recommended application: Basic, neutral or acidic drugs, derivatized amino acids, pesticides fat-soluble vitamins, aldehydes and ketones, phenolic compounds USP L1 (C18) / L7 (C8)
Analytical EC column, zwitterionic phase. Ideal for reproducible and stable chromatography of highly polar analytes • Suitable for analytical and preparative applications as well as LC/MS • Very short column conditioning period Technical characteristics: Ammonium - sulfonic acid modified silica; pore size 110 Å; particle sizes 1.8, 3 and 5 μm; carbon content 7 %; pH stability 2–8.5 Recommended application: Hydrophilic compounds such as organic polar acids and bases, polar natural compounds, nucleosides, oligonucleotides, amino acids, peptides, water soluble vitamins
EC HPLC column NUCLEODUR® C18 ec ∙ C8 ec nonpolar phases for routine analysis Key features: • Ideal and reliable standard RP phase for daily routine analysis and up-scaling for preparative HPLC • Medium density octadecyl (C18) and octyl (C8) modification with exhaustive endcapping • Wide range of application areas Technical characteristics: Pore size 110 Å; particle sizes 3 μm and 5 μm; 7 μm, 10 μm, 12 μm, 16 μm, 20 μm, 30 μm and 50 μm for preparative separations; carbon content 17.5 % for C18, 10.5 % for C8 pH stability 1–9, high reproducibility from lot to lot Recommended application: Basic, neutral or acidic drugs, derivatized amino acids, pesticides fat-soluble vitamins, aldehydes and ketones, phenolic compounds USP L1 (C18) / L7 (C8)
EC HPLC column NUCLEODUR® C18 ec ∙ C8 ec nonpolar phases for routine analysis Key features: • Ideal and reliable standard RP phase for daily routine analysis and up-scaling for preparative HPLC • Medium density octadecyl (C18) and octyl (C8) modification with exhaustive endcapping • Wide range of application areas Technical characteristics: Pore size 110 Å; particle sizes 3 μm and 5 μm; 7 μm, 10 μm, 12 μm, 16 μm, 20 μm, 30 μm and 50 μm for preparative separations; carbon content 17.5 % for C18, 10.5 % for C8 pH stability 1–9, high reproducibility from lot to lot Recommended application: Basic, neutral or acidic drugs, derivatized amino acids, pesticides fat-soluble vitamins, aldehydes and ketones, phenolic compounds USP L1 (C18) / L7 (C8)
Analytical EC column, hydrophobic pentafluorophenyl phase. Hydrophobic phase with alternative selectivity in comparison to classical C18 modifications Separation principle based on 4 retention mechanisms (polar interactions (H bonds), dipole-dipole, π-π, and hydrophobic interactions)Suitable for LC/MS due to low bleeding characteristics Technical characteristics: Phase with pentafluorophenyl-propyl modification and multi-endcapping; pore size 110 Å; particle sizes 1.8 μm, 3 μm and 5 μm; carbon content 8 %; pH stability 1–9 Recommended application: Aromatic and unsaturated compounds, phenols, halogen compounds, isomers, polar compounds like pharmaceuticals, antibiotics; strong retention of basic compounds USP L43
EC HPLC column NUCLEODUR® C18 ec ∙ C8 ec nonpolar phases for routine analysis Key features: • Ideal and reliable standard RP phase for daily routine analysis and up-scaling for preparative HPLC • Medium density octadecyl (C18) and octyl (C8) modification with exhaustive endcapping • Wide range of application areas Technical characteristics: Pore size 110 Å; particle sizes 3 μm and 5 μm; 7 μm, 10 μm, 12 μm, 16 μm, 20 μm, 30 μm and 50 μm for preparative separations; carbon content 17.5 % for C18, 10.5 % for C8 pH stability 1–9, high reproducibility from lot to lot Recommended application: Basic, neutral or acidic drugs, derivatized amino acids, pesticides fat-soluble vitamins, aldehydes and ketones, phenolic compounds USP L1 (C18) / L7 (C8)
EC HPLC column NUCLEODUR® NH2 / NH2-RP amino-modified high purity silica Key features: • Multi-mode columns (for RP, NP and IC) • Stable against hydrolysis at low pH (working range pH 2–8), 100 % stable in water; suitable for LC/MS • Widens scope of analytical HPLC into the polar range Technical characteristics: Aminopropyl modified high purity silica; pore size 110 Å; particle sizes 3, 5 and 7 μm; carbon content 2.5 %; not endcapped Recommended application: Polar compounds under RP conditions (sugars, DNA bases), hydrocarbons under NP conditions USP L8 • Normal phase chromatography (NP) with hexane, dichloromethane or 2-propanol as mobile phase for polar compounds such as substituted anilines, esters, chlorinated pesticides • Reversed phase chromatography (RP) of polar compounds in aqueous-organic eluent systems • Ion exchange chromatography of anions and organic acids using conventional buffers and organic modifiers
Analytical EC column, NUCLEODUR® PolarTec RP phase with embedded polar group · USP L1 and L60 Key feature · Excellent base deactivation · Suitable for LC/MS and 100 % aqueous eluents · Pronounced steric selectivity Technical data · Phase with embedded polar group; pore size 110 Å; particle sizes 1.8 μm, 3 μm and 5 μm; carbon content 17 %; pH stability 1–9 Recommended application · Exceptional selectivity for phenols and nitrogen containing compounds, polar compounds like basic pharmaceuticals, organic acids, pesticides, amino acids, water-soluble vitamins, etc
EC HPLC column NUCLEODUR® NH2 / NH2-RP amino-modified high purity silica Key features: • Multi-mode columns (for RP, NP and IC) • Stable against hydrolysis at low pH (working range pH 2–8), 100 % stable in water; suitable for LC/MS • Widens scope of analytical HPLC into the polar range Technical characteristics: Aminopropyl modified high purity silica; pore size 110 Å; particle sizes 3, 5 and 7 μm; carbon content 2.5 %; not endcapped Recommended application: Polar compounds under RP conditions (sugars, DNA bases), hydrocarbons under NP conditions USP L8 • Normal phase chromatography (NP) with hexane, dichloromethane or 2-propanol as mobile phase for polar compounds such as substituted anilines, esters, chlorinated pesticides • Reversed phase chromatography (RP) of polar compounds in aqueous-organic eluent systems • Ion exchange chromatography of anions and organic acids using conventional buffers and organic modifiers
Wide pore RP phase for daily routine analysis. The medium density butyl modification is based on high purity NUCLEODUR silica gel and is often used for the separation of biomolecules. Butyl (C4) modifications have a lower retention for hydrophobic compounds compared to C18 (octadecyl silane, ODS) or C8 (octyl, MOS) modifications.
Analytical EC column. This high density C8 phase based on high purity NUCLEODUR silica gel with its endcapping suppresses any unwanted polar interactions between the silica surface and the sample, which makes “Gravity” particularly suitable for the separation of basic and other ionizable analytes. Due to the enhanced pH stability, LC/MS suitability and superior base deactivation (BDS) it is a perfect choice for method development and valuable for RP applications.
NUCLEODUR® Phenyl-Hexyl productive for polar / aromatic compunds · USP L11 Key feature · Hydrophobic phase with alternative selectivity compared to classical C18 modiications · Separation principle based on 2 retention mechanisms: π-π interactions and hydrophobic interactions · Suitable for LC/MS due to low bleeding characteristics Technical data · Phase with phenyl-hexyl modiication and multi-endcapping; pore size 110 Å; particle sizes 1.8 µm, 3 µm and 5 µm; carbon content 10 %; pH stability 1–10 Recommended application · Aromatic and unsaturated compounds, polar compounds like pharmaceuticals, antibiotics
EC HPLC separation column, hydrophobic phase with polar selectivity · USP L1 Hydrophobic C18 phase with pronounced polar selectivity, ideal for method development, better ones Retention of early eluting substances Excellent performance under very watery conditions due to a low bleeding characteristic suitable for LC / MS Technical specifications: Monomeric octadecyl modification with sterically demanding side chains; Pore size 110 Å; available particle sizes 1.8 µm, 3 µm and 5 µm; Carbon content 13%; pH stability 1-9 Recommended use: All demanding analytical Separations, especially from polar ones Connections, e.g. B. antibiotics, water-soluble vitamins, organic Acids
Analytical EC column. NUCLEODUR® Sphinx RP bifunctional RP phase · USP L1 and L11 Key feature · Distinct selectivity based on well-balanced bifunctional surface coverage · Widens the scope for method development based on additional π-π interactions · Suitable for LC/MS due to low bleeding characteristics Technical data · Octadecyl and propylphenyl modiiedsilica; pore size 110 Å; particle sizes 1.8 μm, 3 μm and 5 μm; carbon content 15 %; pH stability 1–10; high reproducibility and consistent quality Recommended application · Quinolone antibiotics, sulfonamides, xanthines, substituted aromatics
Analytical EC column, base-deactivated preparative octadecyl phase. Reliable and durable standard RP phase for up-scaling to preparative scale, suited for LC/MS • High loading capacity and excellent stability • Outstanding base deactivation Technical characteristics: High density octadecyl modification (C18); pore size 110 Å; particle sizes 1.8 μm, 3 μm, 5 μm, 7 μm and 10 μm for analytical and preparative separations; carbon content 18 %, pH stability 1–11 Recommended application: Sophisticated analytical and preparative separations of basic, neutral and acidic pharmaceuticals, derivatized amino acids, pesticides, fat-soluble vitamins, aldehydes, ketones and phenolic compounds USP L1
Analytical EC column. phase with high steric selectivity. Key features: Exceptional steric selectivity Outstanding surface deactivation Suitable for LC/MS and HPLC at pH 1–10 Technical characteristics: C18 phase with special polymeric, crosslinked surface modification; pore size 110 Å; particle sizes 1.8 μm, 3 μm and 5 μm; carbon content 20 % Recommended application: Steroids, (o,p,m-) substituted aromatics, fat-soluble vitamins USP L1
EC HPLC separation column NUCLEODUR® C18 Gravity ∙ C8 Gravity non-polar phases of high density. Suitable for LC / MS and HPLC at pH extremes (pH 1–11) Excellent base deactivation Ideal for method development Technical specifications: Available as octadecyl and octyl modification Pore size 110 Å, particle sizes 1.8 μm, 3 μm and 5 μm for C18; 1.8 μm and 5 μm for C8; 7, 10, 12 and 16 μm particles for preparative separations on request Carbon content 18% for C18, 11% for C8 Recommended use: All demanding analytical separations Successfully separated were inter alia. Pharmaceuticals, e.g. B. analgesics, anti-inflammatories, Antidepressants, herbicides, phytopharmaceuticals, immunosuppressors USP L1 (C18) / USP L7 (C8)
Analytical EC column, special octadecyl phase for PAH analyses. Base material NUCLEODUR® silica, particle sizes 1.8 and 3 μm, pore size 110 Å; polymeric coating ∙ USP L1 Allows efficient gradient separation of the 16 PAHs according to EPA Detection of separated PAHs with UV (250–280 nm), diode array or fluorescence detection at different wavelengths for excitation and emission (acenaphthylene cannot be analyzed with fluorescence detection)
5μm (USP L3) •Excellent for separating peptides or proteins. •Rugged, spherical particles with 300 Å pore size. •High proportion of pore/surface area available to large molecules. Viva columns are based on a wide pore material we designed for optimal large-molecule separations. In developing Viva silica, we found that although many commercial wide-pore silicas meet the standard 300 Å mean pore size, most have very broad distributions about this mean, with a significant portion of their pore volume falling below 150 Å. This means a large portion of the surface area is unavailable to larger molecules. Viva columns have a narrow distribution around the mean pore size, permitting a larger portion of the silica surface to play a role in the separation. pH range: 2.5 to 8 temperature limit: 80 °C USP phase code: L3 phase category: bare silica ligand type: none
Pinnacle II PAH HPLC Columns Particle: 4 μm, spherical Pore Size: 110 Å Carbon Load: proprietary End-Cap: no Surface Area: 180 m2/g pH Range: 2.5 to 8 Maximum Temperature: 80 °C
5μm (USP L7) •Excellent for separating peptides or proteins. •Rugged, spherical particles with 300 Å pore size. •High proportion of pore/surface area available to large molecules. Viva columns are based on a wide pore material we designed for optimal large-molecule separations. In developing Viva silica, we found that although many commercial wide-pore silicas meet the standard 300 Å mean pore size, most have very broad distributions about this mean, with a significant portion of their pore volume falling below 150 Å. This means a large portion of the surface area is unavailable to larger molecules. Viva columns have a narrow distribution around the mean pore size, permitting a larger portion of the silica surface to play a role in the separation. carbon load: 5% end-cap: yes pH range: 2.5 to 8 temperature limit: 80 °C USP phase code: L7 phase category: C8, octylsilane ligand type: monomeric C8
Ultra Carbamate, 3μm & 5μm pH range: 2.5 to 8 temperature limit: 80 °C *For post-column derivatization/fluorescence detection applications using a 4.6 mm ID column, the total system dead volume, including the post-column reactor, must be less than 650 μL. For standard post-column reactor systems, we recommend a 250 mm x 4.6 mm, 5 μm column.
Allure® Biphenyl 5μm (USP L11) Unique biphenyl stationary phase promotes π-π interactions with aromatic and unsaturated compounds. Enhanced selectivity for compounds such as steroids, contraceptive hormones, and tetracyclines. Superior retention, compared to traditional phenyl phases, for both unsaturated and saturated compounds. carbon load: 23% endcap: yes pH range: 2.5 to 8 temperature limit: 80°C
5μm (USP L43) •Excellent for separating peptides or proteins. •Rugged, spherical particles with 300 Å pore size. •High proportion of pore/surface area available to large molecules. Viva columns are based on a wide pore material we designed for optimal large-molecule separations. In developing Viva silica, we found that although many commercial wide-pore silicas meet the standard 300 Å mean pore size, most have very broad distributions about this mean, with a significant portion of their pore volume falling below 150 Å. This means a large portion of the surface area is unavailable to larger molecules. Viva columns have a narrow distribution around the mean pore size, permitting a larger portion of the silica surface to play a role in the separation. carbon load: 5% end-cap: yes pH range: 2.5 to 8 temperature limit: 80 °C USP phase code: L43 phase category: fluorophenyl propyl ligand type: pentafluorophenyl propyl
Ultra C18, 3μm & 5μm (USP L1) The Ultra line represents Restek’s broadest selection of stationary phases on a single silica support. Made of high-purity, type-B silica that minimizes activity and creates high-density bonding, these columns are designed for selective and reliable HPLC applications. carbon load: 20% end-cap: yes pH range: 2.5 to 8 temperature limit: 80 °C USP phase code: L1 phase category: C18, octadecylsilane ligand type: monomeric C18
Ultra C18, 3μm & 5μm (USP L1) The Ultra line represents Restek’s broadest selection of stationary phases on a single silica support. Made of high-purity, type-B silica that minimizes activity and creates high-density bonding, these columns are designed for selective and reliable HPLC applications. carbon load: 20% end-cap: yes pH range: 2.5 to 8 temperature limit: 80 °C USP phase code: L1 phase category: C18, octadecylsilane ligand type: monomeric C18
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