Eurospher I silica features an outstanding mechanical stability, a high available surface area and a narrow particle size distribution.These properties give Eurospher a long lifetime and high loading capacity.
Available in many different modifications and column sizes, Eurospher I columns adapt easily to your application and truly strike a balance between efficiency, price and performance.
| Silica gel | 2nd generation |
| Particle size | 3 μm, 5 μm, 10 μm, 15 μm |
| Particle form | spherical |
| Pore size | 100 Å |
| Specific surface | 350 m2/g |
| Pore volumen | 0.9 ml/g |
The Eurospher I stationary phase is available in 7 different surface modifications for a wide range of applications, including reversed phase and normal phase applications. Every Eurospher I modification offers high chemical stability and loading capacity. Our long experience and knowledge in producing HPLC columns ensures you of the highest reproducibility. Every modification must pass extensive quality control procedures, guaranteeing the best batch to batch reproducibility.
| Modification | USP code | Carbon % | pH range |
| C18 | L1 | 16 % (~ 50 % endcapping) | 2 - 8 |
| C8 | L7 | 10 % (~ 50 % endcapping) | 2 - 8 |
| C4 | L26 | 7 % (~ 50 % endcapping) | 2 - 8 |
| NH2 | L8 | 4 % (no endcapping) | 2 - 8 |
| CN | L10 | 7 % (no endcapping) | 2 - 8 |
| Diol | L20 | 5 % (no endcapping) | 2 - 8 |
| Si | L3 | 0% (no endcapping) | 2 - 8 |
We design and manufacture analytical HPLC Vertex Plus column hardware ranging from 3 mm ID to 8 mm ID under strict quality control. For our high resolution 2mm ID columns, we use a special stainless steel column hardware with dead volume optimized frit technology. A special treated inner surface ensures consistent column packing and high column stability for all of KNAUER´s HPLC columns. A wide range of column lengths from 5 mm up to 300 mm are available. The easily exchangeable integrated precolumn for analytical columns is available upon request for all 3 mm ID up to 4.6 mm ID columns.
The choice of the appropriate column for a particular application can be a challenging task. With a range of bonded phases offering different selectivity, the Eurospher I family includes columns to meet most separation needs. The table below will help you to choose the best Eurospher I column for a particular application.
Eurospher 100-5 NH2 with precolumn
Vertex Plus Column 150 x 3 mm
Analytes:
1. Stevioside
2. Rebaudioside A
3. Rebaudioside C
4. Dulcoside A
Eurospher 100-5 C18
Vertex Plus Column 250 x 4.0 mm
Analytes:
1. trans Resveratrol
2. Myrcetine
3. cis Resveratrol
4. Quercetine
5. Caempferol
Eurospher 100-5 Si
Vertex Plus Column 150 x 4.0 mm
Analytes:
1. alpha-Tocopherol
2. beta-Tocopherol
3. gamma-tocopherol
4. delta-Tocopherol
5. Vitamin D2
6. trans-Retinol
Eurospher 100-5 C8
Vertex Plus Column 125 x 4 mm
Analytes:
1. 4-Hydroxy benzoic acid
2. 2-Methoxy benoic acid
3. Benzoic acid
4. Sorbic acid
5. p-Hydroxy methylbenzoate
6. p-Hydroxy ethylbenzoate
7. p-Hydroxy propylbenzoate
8. p-Hydroxy butylbenzoate
Eurospher 100-3 C18
Vertex Plus Column 150 x 3 mm
Analytes:
1. Cortisone
2. Corticosterone
3. Desoxycorticosterone
4. Testosterone
5. Norgestrel
6. Progesterone
Eurospher 100-5 C18
Vertex Plus Column 250 x 4.6 mm
Analytes:
1. Aldicarb sulphoxide
2. Aldicarb sulphone
3. Oxamyl
4. Methomyl
5. 3-Hydroxycarbofuran
6. Aldicarb
7. Propoxur
8. Carbofuran
9. Carbaryl
10. 1- Naphtol
11. Methiocarb
12. BDMC