Column comparison

Your current column and the selected column, shown together.

71%Weighted similarity

6 of 8 scoring criteria are comparable, covering 82% 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 columnFortis Technologies SpeedCore C18P/N SP18-020226 Selected columnBonna-Agela Technologies Bonshell C18P/N SC920302-0
VendorFortis Technologies≠ DifferentBonna-Agela Technologies≠ Different
ModificationSilica/C18✓ MatchSilica/C18✓ Match
ModeReversed-Phase✓ MatchReversed-Phase✓ Match
Particle Size2.6≠ Different2.7≠ Different
Length30✓ Match30✓ Match
Internal Diameter2.1✓ Match2.1✓ Match
Pore size80≠ Different90≠ Different
Surface Area140≠ Different150≠ Different
Carbon Load, %10.0✓ Match10.0✓ Match
BrandSpeedCore C18≠ DifferentBonshell C18≠ Different
Max PressureNot recorded? Missing or unconfirmed9100? Missing or unconfirmed
EndcappedNot recorded? Missing or unconfirmedYes? Missing or unconfirmed
pH stability fromNot recorded? Missing or unconfirmed1.5? Missing or unconfirmed
pH stability toNot recorded? Missing or unconfirmed9.0? Missing or unconfirmed
Product UsageHydrophilic compounds, Hydrophobic 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.
Hydrophilic compounds, Hydrophobic compoundsAcidic compounds, Basic compounds, Neutral compounds0.0% × 20 = 0.00 points
Carbon Load, %
Numeric closeness, falling to zero at a 50% relative difference.
10.010.0100.0% × 15 = 15.00 points
Endcapping
Recorded endcapping values overlap.
Not recordedYesExcluded, missing data
Pore Size
Numeric closeness, falling to zero at a 50% relative difference.
809077.8% × 10 = 7.78 points
Surface Area
Numeric closeness, falling to zero at a 50% relative difference.
14015086.7% × 8 = 6.93 points
pH Stability
The overlapping pH range divided by the combined pH range.
Not recorded1.5 to 9.0Excluded, missing data
Particle Size
Numeric closeness, falling to zero at a 20% relative difference.
2.62.781.5% × 4 = 3.26 points

57.97 ÷ 82 × 100 = 71% (rounded).

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