Dr. Maisch

Ultra Pure ReproSil, ReproSpher, ReproBond and Stability Columns

Dr. Maisch2019-01-23T13:19:07+00:00
Already in 1996 Dr Maisch introduced ReproSil-Pur: this ultra pure Silica-family contains HPLC phases for reversed- and normal-phase chromatography with particles from 3 until 60 µm, with a purity higher than 99,999%. Also Turbo phases were introduced. These pure columns are packed with 1,5 µm particles and allow separations in less than 60 seconds. In addition the patented capillary guard system FixGuards, fitting to every conventional column which need no extra holder and have the advantage that they are completely free of dead volume originate from Dr Maisch.

Further innovations led to the introduction of the Silica family Stability. Stability is available with unique modifications like C30, amid-phases and BS-C23 ( 13 and 17 ). The BS-phases contain a Basic Spacer below the carbon chain and carry a permanent positive charge. Equisil® offers a cost effective alternative to the well known Hypersil HPLC phases.

Further scope of Dr Maisch includes:

  • The Reprospher line columns containing 1.8um, 2um and 2.5um particles. Also available are a range of packed Nanocolumns using fused silica tubing (50-150um i.d.)
  • Reprosil-Pur Basic and Reprosil Gold-Phases with bidentate endcapping, double bonded to the silica and therefore much more stabe than standard single bonded endcapping
  • Ultrapure Reprosil Saphir-C18 HPLC –phases with packings from 1.8 up to 10 µm
  • Reprosil-Pur 120 C18-AQ line, one of the most frequently used phases in the world by selfpackers of nanocolumns with 1.9 µm and 2.4 µm options
  • Reprosil Chiral-OM (Cellulose-carbamate) and Reprosil Chiral-AM (Amylose-carbamate)
  • Cation-Exchange Columns (Reprosil-Cat) for simultaneous separation of mono- and divalent cations (Li+, Na+, NH4+, K+, Mg2+, Ca2+

Please find attached the Catalog of Dr Maisch. We gladly assist you in case of questions.

PhaseDescription
Reprosil-PurPorous spherical silica: 1.9µm, 2.5µm, 3µm, 5µm, 7µm, 10µm
Pore diameter-Surface area : 60A-500m²/g; 120A-300m²/g; 200A-200m²/g; 300A-100m²/g
Ultra pure silica. Purity >99,999%.
Suitable for all kind of samples.
Reprosil-BasicPorous spherical silica: 1.9µm, 2.5µm, 3µm, 5µm, 7µm, 10µm
Pore diameter-Surface area : 100A-450m²/g
Ultra pure silica. Purity >99,999%.
Suitable for all kind of samples.
Reprosil-GoldPorous spherical silica: 3µm, 5µm, 10 µm
Pore diameter-Surface area: 120A-300m²/g; 200A-200m²/g; 300A-100m²/g
Ultra pure silica. Purity >99,999%.
Extra stable with double Endcapping.
Reprosil 80Porous spherical silica: 3, 5, 10 µm
Pore diameter-Surface area: 80A-220 m²/g
Standard Phases equivalent to Spherisorb.
Reprosil 70/100/300Porous spherical silica: 3, 5, 10 µm
Pore diameter-surface area: 70A-500m²/g; 100A-280m²/g; 300A-100m²/g
Pore volume: 0.9, 1.1 ml/g
Purity: Na: 60 ppm, Ca:100 ppm, Fe: 4 ppm, Pb: <1 ppm
Reprosil SaphirPorous spherical silica: 1.8 µm, 2.2 µm, 3 µm, 5 µm, 10 µm
Pore diameter-Surface area: 100A-400m²/g; 300A-100m²/g
Ultra pure silica
Ca, Mg, Al, Ti, Fe: all < 1 ppm
Reprosil ChiralMultiple phases - please contact us for your needs
Reprosil FluosilSlicas: 2.2 µm, 3 µm and 5 µm.
Porous spherical, fluorinated.
SEC / GPCFor Size Exclusion.
Reprosil SEC phases are designed for the Gel Filtration Chromatography (GFC) of proteins, peptides and other org. polymers in aqueous systems.
3 different pore sizes: 50, 200 and 450A.
Reprosil DIBS+ADSDirect Injection of Biological-Samples
C18-Diol-Precolumn for Preparation of Protein samples.
Non-polar small Substances are retained but not Proteines.
ReprospherPorous spherical silica: 1.8 µm, 2 µm, 2.5µm, 3µm, 5µm, 10 µm
Pore diameter-Surface area: 100A°-350m²/g; 200A°-130m²/g; 300A°-100m²/g
Ultra pure silica. Purity >99,999%
Ca, Mg, AL, Fe, Zr, Ti: all < 10 ppm
ReprobondPorous spherical silica: 10 µm
Pore diameter-Surface area: 120A°-300m²/g
ReproShellCoreshell RP-Phase with nonporous Core and porous Shell.
Particle size: 2.6 µm
Carbon loading: 5%
pH-Stability: 2 - 10
Repro-Gel (sugars)Polymeric phases: PSDVB (polystyrenedivinylbenzene)
RepropackPorous spherical silica: 4 µm
Alternative to Nova-Pak.
StabilityPorous spherical silica: 5, 10 µm
Pore diameter-Surface area: 100 A°-350m²/g; 300 A°-100m²/g
HPLC-phases with special chemical modifications.
Gold-Turbo (1.5um)Spherical silica for High Speed HPLC: 1.5 µm particle.
Porous and unporous Phases: 80A°/ 100A° / 120A°
Hardware for 100 ODS: 33 x 4.6 mm in Gold.
OPA/FMOC/PAH/PesticidReproSil-OPA / FMOC / PAH / Pesticides (Maisch)
Porous spherical silica: 3µm, 5µm
EquisilPorous spherical silica: 3 µm, 5µm, 10µm
Pore diameter-Surface area: 120A°-180m²/g
Pore volume: 0.65 ml/g
Ultrasep ESFormerly Sepserv-HPLC / Berlin: All "Ultrasep ES" columns only available from Dr. Maisch.
FluofixParticle size: 5 µm
Pore diameter-Surface Area: 120A°-300m2/g
Modification: withTridecafluoro-Dimethyl-Heptyl-Silane

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