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ROTI®Spin MIDI , 12 unit(s), 100 kDa

From  Carl ROTH
Pack Qty.

For purification and concentration of biomolecules and for purification of solutions.
Product details

€149.45/Pack Qty. 

excl. VAT. | 12 unit(s) per Pack Qty.

Art. No. 25TC.1

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from 6 Pack Qty. €141.98/Pack Qty.
from 24 Pack Qty. €134.50/Pack Qty.

Product details

For purification and concentration of biomolecules and for purification of solutions.

  • ROTI®Spin MINI: 1.5 ml sample tube for up to 500 µl sample
  • ROTI®Spin MIDI: 15 ml sample tube for up to 5 ml sample
  • ROTI®Spin MAXI: 50 ml sample tube for up to 15 ml sample

Centrifugal filters for ultrafiltration of biomolecules. The membranes made of highly chemical-resistant polyethersulfone have been tightly sealed to prevent leakage and loss of samples. Furthermore, the membranes underwent special treatment minimising the binding of biomolecules, in order to optimise sample recovery rates.

ROTI®Spin Centrifugal filters can be applied to a variety of applications and can be used to replace tedious and labour-intensive methods like gel filtration, gel purification or precipitation. Application is time-saving and very simple - only few centrifugal steps are necessary to concentrate and recover your sample. During this, the sample remains untouched in the upper reservoir, and cross-contamination is efficiently prevented even when large numbers of samples are handled.

Application examples

Desalting or buffer exchange following restriction digest, PCR or such; separation of free nucleotides and polymerised DNA; removal of contaminating compounds (like DNA) from stock solutions (e.g. PCR-buffers); concentration of DNA or proteins; separation of proteins of different size; sample preparation prior to HPLC.

Overview for selecting the appropriate pore size
MWCO Molecule size DNA size
10 kDa 30 – 90 kDa 50 – 200 bp
30 kDa 90 – 180 kDa 200 – 500 bp
50 kDa 150 – 300 kDa 500 bp – 1 kb
100 kDa >300 kDa >1 kb

Directions for use

Sample volumes:
nitial volume: max. 15 ml
Final volume: 200 µl

Centrifugation units with membranes in 4 different molecular weight cut-offs (MWCO) are available for specific applications. Select the appropriate MWCO according to the following rule:
Purification of proteins/peptides: MWCO ≤1/3 of the sample molecule size.
Purification of nucleic acids: MWCO ≤1/2 of the sample molecule size.

General properties:
  • Suitable for nucleic acids, proteins/peptides, other biomolecules >200 kDa and very small bioparticles
  • Replaces standard applications such as precipitation, dialysis, gel filtration, gel purification, column chromatography, gradient centrifugation, etc.
  • Gentle: no shearing of DNA up to 100 kb, proteins remain native and enzymatically active
  • Can be used without restriction for labelled samples (isotope, fluorescence, chromogenic labelling)
  • Very high recovery rates: with the right MWCO, the yield is >90%"

Not a medical device / Not an IVD product
Technical Information
MWCO 100 kDa
Selected quantity:   0
  1. Subtotal:  0.00
Art. No. Pack Qty. MWCO Price Quantity
25TC.1 12 unit(s) 100 kDa


25TC.2 24 unit(s) 100 kDa


25TC.3 96 unit(s) 100 kDa


25TN.1 12 unit(s) 50 kDa


25TN.2 24 unit(s) 50 kDa


25TN.3 96 unit(s) 50 kDa


25TP.1 12 unit(s) 30 kDa


25TP.2 24 unit(s) 30 kDa


25TP.3 96 unit(s) 30 kDa


25TT.1 12 unit(s) 10 kDa


25TT.2 24 unit(s) 10 kDa


25TT.3 96 unit(s) 10 kDa


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  1. Subtotal:  0.00

Downloads / MSDS