VarioPrep guard columns NUCLEODUR® C18 Gravity
NUCLEODUR® C18 - C 8 Gravity nonpolar high density phasesAvailable as octadecyl (C18 -USP L1) and octyl (C8 - USP L7) modifications. Pore size 110 Å.Ideal for method developmentAllows HPLC at pH extremes (pH 1 - 11)Suitable for LC/MS due to low bleeding characteristicsRecommended for overall sophisticated analytical separationsOptimal for: pharmaceuticals, e.g. analgesics, antiinflammatory drugs, antidepressants, herbicides, phytopharmaceuticals, immunosppressantsVarioPrep guard columns require a VP guard column holder.
VarioPrep preparative columns NUCLEDUR® 100-5 C8 ec, 5 µm
Available with medium density octadecyl (C18 - USP L1) and octyl (C8 - USP L7) modification pore size 110 Å, particle sizes 3 µm and 5 µm; 7 µm, 10 µm, 12 µm, 16 µm, 20 µm, 30 µm und 50 µm 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 5 µm.
VarioPrep preparative columns NUCLEODUR® 100-10 C18 ec, 10 µm
Available with medium density octadecyl (C18 - USP L1) and octyl (C8 - USP L7) modification pore size 110 Å, particle sizes 3 µm and 5 µm; 7 µm, 10 µm, 12 µm, 16 µm, 20 µm, 30 µm und 50 µm 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.Octadecyl phases, 17.5 % C, particle size 10 µm
VarioPrep preparative columns NUCLEODUR® 100-5
Totally spherical high purity silica - USP L3 pore size 110 Å, pore volume 0.9 ml/g, surface (BET) 340 m²/g, density 0.47 g/ml, pressure stability 800 bar, pH stability 2 - 8.Particle size 5 µm.
VarioPrep preparative columns NUCLEODUR® 100-5 C18 ec, 5 µm
Available with medium density octadecyl (C18 - USP L1) and octyl (C8 - USP L7) modification pore size 110 Å, particle sizes 3 µm and 5 µm; 7 µm, 10 µm, 12 µm, 16 µm, 20 µm, 30 µm und 50 µm 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.Octadecyl phases, 17.5 % C. Particle size 5 µm.
VarioPrep preparative columns NUCLEODUR® C18 Gravity
NUCLEODUR® C18 - C 8 Gravity nonpolar high density phasesAvailable as octadecyl (C18 -USP L1) and octyl (C8 - USP L7) modifications. Pore size 110 Å.Ideal for method developmentAllows HPLC at pH extremes (pH 1 - 11)Suitable for LC/MS due to low bleeding characteristicsRecommended for overall sophisticated analytical separationsOptimal for: pharmaceuticals, e.g. analgesics, antiinflammatory drugs, antidepressants, herbicides, phytopharmaceuticals, immunosppressantsParticle size 5 µm, 18 % C
VarioPrep preparative columns NUCLEODUR® C18 Isis
C18 phase with special polymeric, crosslinked surface modification - USP L1Pore size 110 ÅHigh steric selectivityOutstanding surface deactivationSuitable for LC/MS due low bleeding characteristicspH stability 1 - 10Broad range of application: steroids, (o,p,m-) substituted aromatics, fat-soluble vitaminsParticle size 5 µm, 20 % C
VarioPrep preparative columns NUCLEODUR® C18 Pyramid
Stable in 100 % aqueous eluent systems- USP L1Pore size 110 ÅInteresting polar selectivity featuresExcellent base deactivation; suitable for LC/MS due low bleeding characteristicspH stability 1 - 9Ideal for: analgesics, penicillin antibiotics, nucleic acid bases, water-soluble vitamins, complexing agetns, organic acidsParticle size 5 µm, 14 % C
VarioPrep preparative columns NUCLEODUR® Sphinx RP
Distinct selectivity based on bifunctional surface coverage - USP L1 and USP L11Pore size 110 ÅHigh density of covalently bonded silanes for tailing-free peaks widens the scope for method developmentpH stability 1 - 10Suitable for LC/MS due low bleeding characteristicsHigh reproducibility and consistent quality due to tight QC proceduresRange of application: quinolone antibiotics, sulfonamides, xanthines, substituted aromaticsParticle size 5 µm, 15 % C