HPLC columns

C18 phase with special polymeric, crosslinked surface modification - USP L1
pore size 110 Å, particle sizes 1,8µm, 3µm and 5µm; 20%C
high steric selectivity
outstanding surface deactivation
suitable for LC/MS due low bleeding characteristics
pH stability 1 - 10
broad range of application: steroids, (o,p,m-) substituted aromatics, fat-soluble vitamins

8 % Phenyl Polycarborane-siloxane. Ultra high temperature columns for polychlorinated biphenyl compounds (PCB), nitro-substituted aromatics, polynuclear aromatic hydrocarbons, pesticides and herbicides.

Analytical column system manufactured from stainless steel M 8 outer threads on both ends combination of sealing element and very fine-meshed stainless steel screen, PTFE sealing ring and fitting adaptor column heads SW 12 with inner threads M8 x 0,75 and UNF 10-32, as built -in guard columns use ChromCart^® guard column cartridges with 8mm length with the guard column adaptor EC, packed with NUCLEODUR^® spherical silica.

NUCLEODUR^® C18 - C 8 Gravity nonpolar high density phases

available as octadecyl (C18 -USP L!) and octyl (C8 - USP L7) modifications
Pore size 110 Å; particle sizes 1,8µm, 3µm and 5µm for C18, 1,8 and 5µm for C8
7, 10, 12 and 16µm particles for preparative separations on request
carbon content 18 %C for C18 , 11%C for C8
ideal for method development
allows HPLC at pH extremes (pH 1 - 11)
suitable for LC/MS due to low bleeding characteristics
recommended for overall sophisticated analytical separations
optimal for: pharmaceuticals, e.g. analgesics, antiinflammatory drugs, antidepressants; herbicides; phytopharmaceuticals; immunosppressants

stabel in 100 % aqueous eluent systems- USP L1
pore size 110 Å, particle sizes 1,8µm, 3µm and 5µm; 14 % C
7 and 10µm particles for preparative separations on request
interesting polar selectivity features
excellent base deactivation; suitable for LC/MS due low bleeding characteristics
pH stability 1 - 9
Ideal for: analgesics, penicillin antibiotics, nucleic acid bases, water-soluble vitamins, complexing agetns, organic acids

C18 phase with special polymeric, crosslinked surface modification - USP L1
pore size 110 Å, particle sizes 1,8µm, 3µm and 5µm; 20%C
high steric selectivity
outstanding surface deactivation
suitable for LC/MS due low bleeding characteristics
pH stability 1 - 10
broad range of application: steroids, (o,p,m-) substituted aromatics, fat-soluble vitamins

distinct selectivity based on bifunctional surface coverage - USP L1 and USP L11
pore size 110 Å, particle sizes 1,8µm, 3µm and 5µm; 14 %C
high density of covalently bonded silanes for tailing-free peaks widens the scope for method development
pH stability 1 - 10
suitable for LC/MS due low bleeding characteristics
high reproducibility and consistent quality due to tight QC procedures
range of application: quinolone antibiotics, sulfonamides, xanthines, substituted aromatics

Available with medium density octadecyl (C18 - USP L1) and octyl (C8 - USP L7) modification pore size 110 Ä, particle sizes, 3µm and 5µm; 7µm, 10µm, 12µm, 16µm, 20µm, 30µm und 50µm for preparative separations on request for daily routine analysis and up-scaling for preparative HPLC, pH stability 1 - 9. Carbon content 17.5%C for C18 , 10,5%C for C8, high reproducibility from lot to lot for standard routine applications in reversed phase chromatography.

Available with medium density octadecyl (C18 - USP L1) and octyl (C8 - USP L7) modification pore size 110 Ä, particle sizes, 3µm and 5µm; 7µm, 10µm, 12µm, 16µm, 20µm, 30µm und 50µm for preparative separations on request for daily routine analysis and up-scaling for preparative HPLC, pH stability 1 - 9. Carbon content 17.5%C for C18 , 10,5%C for C8, high reproducibility from lot to lot for standard routine applications in reversed phase chromatography.

Available with medium density octadecyl (C18 - USP L1) and octyl (C8 - USP L7) modification pore size 110 Ä, particle sizes, 3µm and 5µm; 7µm, 10µm, 12µm, 16µm, 20µm, 30µm und 50µm for preparative separations on request for daily routine analysis and up-scaling for preparative HPLC, pH stability 1 - 9. Carbon content 17.5%C for C18 , 10,5%C for C8, high reproducibility from lot to lot for standard routine applications in reversed phase chromatography.
Octyl phases, 10.5% C, particle size 5µm.