Column comparison

Your current column and the selected column, shown together.

98%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 columnHitachi High-Technologies Hitachi LaChrom C8P/N 891-5066 Selected columnUnimicro Technologies Inc. Globalsil-120-5-C8P/N G4625D8P05N
VendorHitachi High-Technologies≠ DifferentUnimicro Technologies Inc.≠ Different
ModificationSilica/C8✓ MatchSilica/C8✓ Match
ModeReversed-Phase✓ MatchReversed-Phase✓ Match
Particle Size5.0✓ Match5.0✓ Match
Length150≠ Different250≠ Different
Internal Diameter4.6✓ Match4.6✓ Match
Pore size120✓ Match120✓ Match
Max Pressure4000? Missing or unconfirmedNot recorded? Missing or unconfirmed
Surface Area330≠ Different300≠ Different
Carbon Load, %11.0✓ Match11.0✓ Match
EndcappedYes? Missing or unconfirmedNot recorded? Missing or unconfirmed
Operating Temperature50? Missing or unconfirmedNot recorded? Missing or unconfirmed
pH stability from2.5? Missing or unconfirmedNot recorded? Missing or unconfirmed
pH stability to7.5? Missing or unconfirmedNot recorded? Missing or unconfirmed
BrandHitachi LaChrom C8≠ DifferentGlobalsil-120-5-C8≠ Different
Product UsageHydrophobic compounds✓ MatchHydrophobic compounds✓ Match

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/C8Silica/C8100.0% × 25 = 25.00 points
Product Usage
Shared usage values divided by all distinct usage values recorded for these columns.
Hydrophobic compoundsHydrophobic compounds100.0% × 20 = 20.00 points
Carbon Load, %
Numeric closeness, falling to zero at a 50% relative difference.
11.011.0100.0% × 15 = 15.00 points
Endcapping
Recorded endcapping values overlap.
YesNot recordedExcluded, missing data
Pore Size
Numeric closeness, falling to zero at a 50% relative difference.
120120100.0% × 10 = 10.00 points
Surface Area
Numeric closeness, falling to zero at a 50% relative difference.
33030081.8% × 8 = 6.55 points
pH Stability
The overlapping pH range divided by the combined pH range.
2.5 to 7.5Not recordedExcluded, missing data
Particle Size
Numeric closeness, falling to zero at a 20% relative difference.
5.05.0100.0% × 4 = 4.00 points

80.55 ÷ 82 × 100 = 98% (rounded).

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