Column comparison

Your current column and the selected column, shown together.

73%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 columnAapptec Spirit OrganicP/N A010000 Selected columnGRACE Prevail C18 SelectP/N 43861
VendorAapptec≠ DifferentGRACE≠ Different
ModificationSilica/C18✓ MatchSilica/C18✓ Match
ModeReversed-Phase✓ MatchReversed-Phase✓ Match
Particle Size5≠ Different3≠ Different
Length30≠ Different10≠ Different
Internal Diameter4.6≠ Different2.1≠ Different
Pore size100≠ Different110≠ Different
pH stability from1? Missing or unconfirmedNot recorded? Missing or unconfirmed
pH stability to12? Missing or unconfirmedNot recorded? Missing or unconfirmed
BrandSpirit Organic≠ DifferentPrevail C18 Select≠ Different
Surface AreaNot recorded? Missing or unconfirmed350? Missing or unconfirmed
Carbon Load, %Not recorded? Missing or unconfirmed15? Missing or unconfirmed
EndcappedNot recorded? Missing or unconfirmedYes? Missing or unconfirmed
Product UsageSmall molecules≠ DifferentSmall molecules, Vitamins≠ 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.
Small moleculesSmall molecules, Vitamins50.0% × 20 = 10.00 points
Carbon Load, %
Numeric closeness, falling to zero at a 50% relative difference.
Not recorded15Excluded, missing data
Endcapping
Recorded endcapping values overlap.
Not recordedYesExcluded, missing data
Pore Size
Numeric closeness, falling to zero at a 50% relative difference.
10011081.8% × 10 = 8.18 points
Surface Area
Numeric closeness, falling to zero at a 50% relative difference.
Not recorded350Excluded, missing data
pH Stability
The overlapping pH range divided by the combined pH range.
1 to 12Not recordedExcluded, missing data
Particle Size
Numeric closeness, falling to zero at a 20% relative difference.
530.0% × 4 = 0.00 points

43.18 ÷ 59 × 100 = 73% (rounded).

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