Column comparison

Your current column and the selected column, shown together.

70%Weighted similarity

4 of 8 scoring criteria are comparable, covering 57% of the total weight. Missing values are excluded.

The percentage includes partial similarity. Green means the recorded values match; red means they differ. The calculation below explains each contribution.

Similarity does not guarantee identical selectivity or performance. Confirm suitability for your method.

✓ Matching values≠ Different values? Missing or unconfirmed
Recorded specifications of the current and selected columns
Property Current columnOrochem Orosym C18P/N OY3DI-920 Selected columnFortis Technologies Fortis C18P/N C075-050-01-F18
VendorOrochem≠ DifferentFortis Technologies≠ Different
ModificationSilica/C18✓ MatchSilica/C18✓ Match
ModeReversed-Phase✓ MatchReversed-Phase✓ Match
Particle Size3.0≠ Different1.7≠ Different
Length100≠ Different50≠ Different
Internal Diameter4.6≠ Different0.075≠ Different
Pore size130? Missing or unconfirmedNot recorded? Missing or unconfirmed
Surface Area45≠ Different380≠ Different
BrandOrosym C18≠ DifferentFortis C18≠ Different
Max PressureNot recorded? Missing or unconfirmed18000? Missing or unconfirmed
Carbon Load, %Not recorded? Missing or unconfirmed17.0? Missing or unconfirmed
pH stability fromNot recorded? Missing or unconfirmed1.0? Missing or unconfirmed
pH stability toNot recorded? Missing or unconfirmed2.0? Missing or unconfirmed
Product UsageAcidic compounds, Basic compounds, Isomers, Neutral compounds≠ DifferentAcidic compounds, Basic compounds, Neutral compounds≠ Different

How this similarity score is calculated

Each comparable criterion earns its weight multiplied by its similarity. The sum is divided by the available weight, then multiplied by 100 and rounded. Missing criteria earn no points and add no weight. Vendor, Brand, Mode, length, internal diameter, pressure and temperature do not contribute to this percentage. Mode and Modification determine which families appear in recommendations.

Scroll this table sideways to see both columns and their score contributions. You can also focus the table and use the arrow keys.

Score contributions for the exact two columns
Criterion and methodCurrent columnSelected columnContribution
Modification
Recorded values overlap. Proprietary modifications are capped at 50%; an identical label does not confirm identical chemistry.
Silica/C18Silica/C18100.0% × 25 = 25.00 points
Product Usage
Shared usage values divided by all distinct usage values recorded for these columns.
Acidic compounds, Basic compounds, Isomers, Neutral compoundsAcidic compounds, Basic compounds, Neutral compounds75.0% × 20 = 15.00 points
Carbon Load, %
Numeric closeness, falling to zero at a 50% relative difference.
Not recorded17.0Excluded, missing data
Endcapping
Recorded endcapping values overlap.
Not recordedNot recordedExcluded, missing data
Pore Size
Numeric closeness, falling to zero at a 50% relative difference.
130Not recordedExcluded, missing data
Surface Area
Numeric closeness, falling to zero at a 50% relative difference.
453800.0% × 8 = 0.00 points
pH Stability
The overlapping pH range divided by the combined pH range.
Not recorded1.0 to 2.0Excluded, missing data
Particle Size
Numeric closeness, falling to zero at a 20% relative difference.
3.01.70.0% × 4 = 0.00 points

40.00 ÷ 57 × 100 = 70% (rounded).

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