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+)

More on RepoSil Phases is found below:

  • ReproSil Pur

Porous 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 Pur Basic

Porous 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 Gold

Porous 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 80

Porous spherical silica: 3, 5, 10 µm
Pore diameter / Surface area: 80 A° / 220 m²/g
Standard Phases equivalent to Spherisorb.

  • ReproSil 70-100-300

Porous spherical silica: 3, 5, 10 µm
Pore diameter: 70 A° / 500m²/g, 100 A° / 280m²/g, 300 A°/100m²/g
Pore volume: 0.9, 1.1 ml/g

Purity: Na: 60 ppm, Ca:100 ppm, Fe: 4 ppm, Pb: <1 ppm

  • ReproSil Saphir

Porous spherical silica: 1.8 µm, 2.2 µm, 3 µm, 5 µm, 10 µm
Pore diameter / Surface area :100 A° / 400m²/g, 300A° / 100m²/g
Ultra pure silica
Ca, Mg, Al, Ti, Fe: all < 1 ppm 

  • ReproSil FluoSil

Silicas: 2.2 µm, 3 µm and 5 µm
Porous spherical
Fluorinated phases

  • ReproSil SEC - for Size Exclusion

Reprosil SEC phases are designed for the Gel Filtration Chromatography (GFC) of proteins, peptides and 
other org. polymers in aqueous systems. In GFC elution order is a function of molecular weight, the largest 
molecules eluting first and the smallest last. 
The Silica-based Reprosil SEC packings are available with 3 different pore sizes:

  • Reprosil-DIBS + ADS

Direct Injection of Biological-Samples