Reliable Dextran-Based Size Exclusion for High-Yield Purification
Purification via Gravity: Dextran Resins for Size-Based Separation
emp BIOTECH’s gravity-flow columns filled with Zetadex resin enable fast and gentle purification, desalting, and buffer exchange of proteins and nucleic acids. These pre-packed, ready-to-use columns are optimized for downstream workflows that demand reproducibility, high recovery, and compatibility with both small- and large-scale sample volumes.
Product categories are defined by sample volume and molecular weight cutoff:
Gravity Flow MWCO 5 kDa – For proteins >5 kDa or nucleic acids >10 bp
Gravity Flow MWCO 25 kDa – For proteins >25 kDa or nucleic acids >20 bp
Desalting Column Array – For screening and optimization of multiple sample volumes
CentriPure 1500 – Z25M Columns
Gel filtration column for purification and desalting of proteins larger than 5 kDa or nucleic acids longer than 10 bp/nt. Processes sample volumes of 150 mL.
CentriPure 25 – Z25M
Gel filtration column for purification and desalting of proteins largern than 5 kDa or nucleic acids longer than 10 bp/nt. Processes sample volumes of 2.5 mL.
CentriPure 300 – Z25M
Gel filtration column for purification and desalting of proteins larger than 5 kDa or nucleic acids longer than 10 bp/nt. Processes sample volumes of 30 mL.
CentriPure 2 – Z25M
Gel filtration column for purification and desalting of proteins larger than 5 kDa or nucleic acids longer than 10 bp/nt. Processes sample volumes of 150 to 300 µL
CentriPure 100 – Z25M
Gel filtration column for purification and desalting of proteins larger than 5 kDa or nucleic acids longer than 10 bp/nt. Processes sample volumes of 10 mL.
CentriPure 1000 – Z25M
Gel filtration column for purification and desalting of proteins larger than 5 kDa or nucleic acids longer than 10 bp/nt. Processes sample volumes of 100 mL.
CentriPure 5 – Z25M
Gel filtration column for purification and desalting of proteins larger than 5 kDa or nucleic acids longer than 10 bp/nt. Processes sample volumes of 0.5 mL.
CentriPure Trial Pack, ONE column of each for sample volumes of 200 μL, 500 μL, 1.0 mL, 2.5 mL, 5 mL
Gel filtration columns for purification and desalting of proteins larger than 5 kD and nucleic acids longer than 10 bp/nt. Processes sample volumes of 200 µL, 500 µL, 1.0 mL, 2.5 mL and 5.0 mL.
CentriPure 50 – Z25M
Gel filtration column for purification and desalting of proteins larger than 5 kDa or nucleic acids longer than 10 bp/nt. Processes sample volumes of 5 mL.
CentriPure 200 – Z25M
Gel filtration column for purification and desalting of proteins larger than 5 kDa or nucleic acids longer than 10 bp/nt. Processes sample volumes of 20 mL.
CentriPure 400 – Z25M
Gel filtration column for purification and desalting of proteins larger than 5 kDa or nucleic acids longer than 10 bp/nt. Processes sample volumes of 40 mL.
CentriPure 10 – Z25M
Gel filtration column for purification and desalting of proteins larger than 5 kDa or nucleic acids longer than 10 bp/nt. Processes sample volumes of 1.0 mL.
CentriPure 500 – Z25M
Gel filtration column for purification and desalting of proteins larger than 5 kDa or nucleic acids longer than 10 bp/nt. Processes sample volumes of 50 mL.
CentriPure 5 – Z50M
Gel filtration column for purification and desalting of proteins larger than 25 kDa or nucleic acids longer than 20 bp/nt. Processes sample volumes of 500 µL.
CentriPure 100 – Z50M
Gel filtration column for purification and desalting of proteins larger than 25 kDa or nucleic acids longer than 20 bp/nt. Processes sample volumes of 10 mL.
CentriPure 25 – Z50M
Gel filtration column for purification and desalting of proteins larger than 25 kDa or nucleic acids longer than 20 bp/nt. Processes sample volumes of 2.5 mL.
CentriPure 50 – Z50M
Gel filtration column for purification and desalting of proteins larger than 25 kDa or nucleic acids longer than 20 bp/nt. Processes sample volumes of 5 mL.
CentriPure 10 – Z50M
Gel filtration column for purification and desalting of proteins larger than 25 kDa or nucleic acids longer than 20 bp/nt. Processes sample volumes of 1.0 mL.
CentriPure 2 – Z50M
Gel filtration column for purification and desalting of proteins larger than 25 kDa or nucleic acids longer than 20 bp/nt. Processes sample volumes of 150 – 300 µL.
CentriPure 96 Gel Filtration Column Array 300 – Z25M Replacement Columns
Hydrated gel filtration columns for purification and desalting. Processes sample volumes of 150 to 300 µL.
CentriPure 96 Gel Filtration Column Array 500 Replacement Columns
Hydrated gel filtration columns for purification, desalting and buffer exchange. Processes sample volumes of 500 µL.
CentriPure 96 Gel Filtration Column Array 500 – Z25M
Gel filtration column array for purification and desalting of proteins larger than 5 kDa or nucleic acids longer than 10 bp/nt. Processes 96 samples simultaneously with sample volumes of 500 µL.
CentriPure 96 Gel Filtration Column Array 300 – Z25M
Gel filtration column array for purification and desalting of proteins larger than 5 kDa or nucleic acids longer than 10 bp/nt. Processes 96 samples simultaneously with sample volumes of 150 to 300 µL.
CentriPure 96 Gel Filtration Column Array 400 – Z25M
Gel filtration column array for purification and desalting of proteins larger than 5 kDa or nucleic acids longer than 10 bp/nt. Processes 96 samples simultaneously with sample volumes of 400 µL.