LIQUID CHROMATOGRAPHY RELATED PRODUCTS

COSMOSIL SL-II-PREP

COSMOSIL SL-II-PREP is ultra pure silica gel packing material more than 99.99% purity. COSMOSIL SL-II-PREP provides improved separation and reproducibility for compounds with carbonyl or phenol hydroxyl groups, which are often problematic on conventional silica gel materials.
*All chromatograms shown below are obtained with silica gel packed into stainless steel columns.

Influence of the particle size on peak shape

The SL-II-PREP is available in five sizes : 3, 5, 15, 75 and 140 µm (particle diameter). The peak shapes depend on the particle size, however, the elution order remains the same.

Influence of the particle size on peak shape

Condition
Column size 10 mm I.D. x 250 mm Detection UV 254 nm 0.16AUFS
(5 m: 0.32AUFS)
Mobile phase hexane : ethanol = 95 : 5
Flow rate 5.0 ml/min Sample
  1. Chrysazin
  2. p-Cresol
Temperature 30°C

Performance for chelating compounds

Highly purified silica gel of Cosmosil SL-Ⅱ-PREP enables separation of metal coordination compounds without adsorption.

Performance for chelating compounds

Condition
Column size 10 mm I.D. x 250 mm Detection UV 254 nm 0.16AUFS
Mobile phase hexane : ethanol = 95 : 5
Flow rate 5.0 ml/min Sample
  1. Quinizarin
  2. p-Nitrobenzyl Alcohol
Temperature 30°C

Performance for organic acid and amide

Performance for organic acid and amide

Condition
Column size 10 mm I.D. x 250 mm Detection UV 254 nm 0.16AUFS
Mobile phase hexane : ethanol = 90 : 10
Flow rate 5.0 ml/min Sample
  1. Salicylic acid
  2. Salicylamide
Temperature 30°C

Packing method

Please refer to TECHNICAL NOTE;Packing instruction.

Ordering information

COSMOSIL SL-II-PREP
Product name PKG size Product No.
COSMOSIL 75SL-II-PREP
100 g 38012-64
500 g 38012-35
1 kg 38012-51
COSMOSIL 140SL-II-PREP
100 g 38013-54
500 g 38013-25
1 kg 38013-41

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