NACALAI TESQUE, INC.

The COSMOSIL PE-MS columns (phenylethyl group) and the COSMOSIL CN-MS columns (cyanopropyl group) provide a secondary separation mode (π-π interaction). These columns are recommended when the other alkyl chain stationary phases do not offer optimum selectivity for structurally similar compounds.

Material characteristics

Packing material	PE-MS	CN-MS
Silica gel	high purity porous spherical silica
Average particle size	5 μm
Average pore size	approx. 120 A
Specific surface area	approx. 300 m2/g
Stationary phase	phenylethyl group	cyanopropyl group
Bonding type	monomeric
Main interaction	hydrophobic interaction / π- π interaction
End capping treatment	near-perfect treatment
Carbon content	approx. 10%	approx. 7%

Application data

Condition
Column size	4.6 mm I.D. x 150 mm	Sample	1.Acetophenone	0.05 μg
Mobile phase	5PE-MS methanol : water = 60 : 40 5CN-MS methanol : water = 40 : 60 5C18-MS-II methanol : water = 60 : 40		2.Methyl Benzoate	0.5 μg
Flow rate	1.0 ml/min		3.Benzene	2.0 μg
Tempeature	30°C		4.Toluene	2.0 μg
Detection	UV 254 nm

Ordering information

Analytical and preparative column (Particle size : 5 μm)

COSMOSIL 5PE-MS

Product name	Size	Product No.
COSMOSIL 5PE-MS Guard Column
	4.6 mm I.D. x 10 mm	38181-41
	10 mm I.D. x 20 mm	38182-31
COSMOSIL 5PE-MS Packed Column
	4.6 mm I.D. x 50 mm	38183-21
	4.6 mm I.D. x 100 mm	38184-11
	4.6 mm I.D. x 150 mm	38185-01
	4.6 mm I.D. x 250 mm	38186-91
	6.0 mm I.D. x 150 mm	38187-81
	6.0 mm I.D. x 250 mm	38188-71
	10 mm I.D. x 250 mm	38189-61
	20 mm I.D. x 250 mm	38190-21

COSMOSIL 5CN-MS

Product name	Size	Product No.
COSMOSIL 5CN-MS Guard Column
	4.6 mm I.D. x 10 mm	38231-81
	10 mm I.D. x 20 mm	38232-71
COSMOSIL 5CN-MS Packed Column
	4.6 mm I.D. x 50 mm	38233-61
	4.6 mm I.D. x 100 mm	38234-51
	4.6 mm I.D. x 150 mm	38235-41
	4.6 mm I.D. x 250 mm	38236-31
	6.0 mm I.D. x 150 mm	38237-21
	6.0 mm I.D. x 250 mm	38238-11
	10 mm I.D. x 250 mm	38239-01
	20 mm I.D. x 250 mm	38240-61