NUCLEOSIL unmodified

NUCLEOSIL®
unmodified silica phases for HPLC
USP L3
Features

spherical silica, pH stability at 20 °C: 2 – 8 available pore sizes 50, 100, 120, 300, 500, 1000 and 4000 Å available particle sizes 3 µm, 5 µm, 7 µm and 10 µm separation mechanism based on polar interactions
Physical properties of unmodified NUCLEOSIL® materials
Phase	Pore size	Pore volume	Surface (BET)	Density	Pressure stability
NUCLEOSIL® 50	50 Å	0.8 ml/g	420 m²/g	0.45 g/ml	600 bar
NUCLEOSIL® 100	100 Å	1 ml/g	350 m²/g	0.36 g/ml	600 bar
NUCLEOSIL® 120	120 Å	0.65 ml/g	200 m²/g	0.55 g/ml	500 bar
NUCLEOSIL® 300	300 Å	0.8 ml/g	100 m²/g	0.45 g/ml	400 bar
NUCLEOSIL® 500	500 Å	0.8 ml/g	35 m²/g	0.45 g/ml	400 bar
NUCLEOSIL® 1000	1000 Å	0.8 ml/g	25 m²/g	0.45 g/ml	300 bar
NUCLEOSIL® 4000	4000 Å	0.7 ml/g	10 m²/g	0.48 g/ml	300 bar
Please note! Eluent in column is n-heptane. When using an eluent which is not miscible with n-heptane (e. g. water), it is necessary to rinse the columns with THF first.

Standard programme* of columns packed with unmodified NUCLEOSIL®
Column system		Particle		Pore size [Å]
		size	50	100	300
analytical	EC columns (standard system, 2 – 4.6 mm)	5 µm
		7 µm
	ChromCart cartridge columns (CC, 2 – 4.6 mm)	5 µm
preparative	VarioPrep columns (VP, ≥ 8 mm)	7 µm
if you do not know our HPLC column systems, click the "i" for further information
* Please note! Most combinations of MN column types, available dimensions and phases can be custom-packed on request.

Programme of unmodified NUCLEOSIL® bulk packings
Particle size	Pore size [Å]
	50	100	120	300	500	1000	4000
3 µm
5 µm
7 µm
10 µm
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