ChromX® C18 (2) by CHROMOSEP is an advanced octadecyl silane-bonded HPLC column designed for superior selectivity, durability, and chromatographic performance. Built with unique phase bonding technology, this column features super high-purity all-porous silica gel (purity >99.999%) and a perfectly spherical particle structure, ensuring consistent performance and efficient flow dynamics. The very hydrophobic stationary phase provides excellent methylene selectivity, making it ideal for separating structurally similar compounds with high precision. With a high carbon load and large surface area, ChromX® C18 (2) delivers stronger retention for non-polar analytes while maintaining low back pressure. The non-polar endcapping effectively eliminates silanol interactions, resulting in sharp, symmetrical peaks and reproducible results. Engineered for USP-compliant methods and general LC method development, this column offers outstanding versatility and stability, making it the perfect choice for pharmaceutical, chemical, and research laboratories seeking reliable and high-efficiency separations.

Column Material Specifications Comparison

ParameterValue 1Value 2Value 3Value 4
Particle Size (µm)
34510
Pore Size (A°)
100100100100
Surface Area (m2/g)
450450450450
Carbon Load (%)
20202020
End Capping
YesYesYesYes
pH Stability
2-82-82-82-8

Ordering Information

Particle Size (µm)34510
Dimension
(mm)
P/N
300 X 4.6--CH185030046-2 CH181030046-2
300 X 4.0--CH185030040-2CH181030040-2
250 X 4.6CH183025046-2CH184025046-2CH185025046-2 CH181025046-2
250 X 4.0CH183025040-2CH184025040-2CH185025040-2CH181025040-2
150 X 4.6CH183015046-2CH184015046-2CH185015046-2 CH181015046-2
150 X 4.0CH183015040-2CH184015040-2 CH185015040-2 CH181015040-2
150 X 3.0CH183015030-2CH184015030-2CH185015030-2CH181015030-2
150 X 2.1CH183015021-2CH184015021-2CH185015021-2CH181015021-2
125 X 4.6CH183012546-2CH184012546-2CH185012546-2CH181012546-2
125 X 4.0CH183012540-2CH184012540-2CH185012540-2CH181012540-2
125 X 3.0CH183012530-2CH184012530-2CH185012530-2 CH181012530-2
125 X 2.1CH183012521-2CH184012521-2CH185012521-2 CH181012521-2
100 X 4.6 CH183010046-2 CH184010046-2 CH185010046-2
CH181010046-2
100 X 4.0
CH183010040-2
CH184010040-2
CH185010040-2
CH181010040-2
100 X 3.0
CH183010030-2
CH184010030-2
CH185010030-2
CH181010030-2
100 X 2.1
CH183010021-2
CH184010021-2
CH185010021-2
CH181010021-2
75 X 4.6
CH183007546-2
CH184007546-2
CH185007546-2
CH181007546-2
50 X 4.6
CH183005046-2
CH184005046-2
CH185005046-2
CH181005046-2
50 X 4.0
CH183005040-2
CH184005040-2
CH185005040-2
CH181005040-2
50 X 3.0
CH183005030-2
CH184005030-2
CH185005030-2
CH181005030-2
50 X 2.1CH183005021-2 CH184005021-2
CH185005021-2CH181005021-2
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