Column comparison

Your current column and the selected column, shown together.

63%Weighted similarity

4 of 8 scoring criteria are comparable, covering 59% 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 columnPhenomenex Aqua C18P/N 00F-4331-E0 Selected columnBonna-Agela Technologies Promosil C18P/N PM950302-0
VendorPhenomenex≠ DifferentBonna-Agela Technologies≠ Different
ModificationSilica/C18✓ MatchSilica/C18✓ Match
ModeReversed-Phase✓ MatchReversed-Phase✓ Match
Particle Size5.0✓ Match5.0✓ Match
Length150≠ Different30≠ Different
Internal Diameter4.6≠ Different2.1≠ Different
Pore size200≠ Different100≠ Different
BrandAqua C18≠ DifferentPromosil C18≠ Different
Surface AreaNot recorded? Missing or unconfirmed320? Missing or unconfirmed
Carbon Load, %Not recorded? Missing or unconfirmed18.0? 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 usageNot recorded? Missing or unconfirmedPharmaceutical molecules? Missing or unconfirmed
Product UsageBio-molecules, Pharmaceutical molecules, Small molecules≠ DifferentAcidic compounds, Basic compounds, Pharmaceutical molecules, Small molecules≠ 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.
Bio-molecules, Pharmaceutical molecules, Small moleculesAcidic compounds, Basic compounds, Pharmaceutical molecules, Small molecules40.0% × 20 = 8.00 points
Carbon Load, %
Numeric closeness, falling to zero at a 50% relative difference.
Not recorded18.0Excluded, missing data
Endcapping
Recorded endcapping values overlap.
Not recordedYesExcluded, missing data
Pore Size
Numeric closeness, falling to zero at a 50% relative difference.
2001000.0% × 10 = 0.00 points
Surface Area
Numeric closeness, falling to zero at a 50% relative difference.
Not recorded320Excluded, missing data
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.
5.05.0100.0% × 4 = 4.00 points

37.00 ÷ 59 × 100 = 63% (rounded).

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