Column comparison

Your current column and the selected column, shown together.

Limited dataNo reliable score available

3 of 8 scoring criteria are comparable, covering 44% of the total weight. Missing values are excluded.

A score requires at least 3 comparable criteria and 50% data coverage.

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 columnSepax Technologies Sepax HP 200 C18P/N 104183-0005 Selected columnPerkinElmer Brownlee Analytical DB C18P/N N9303862
VendorSepax Technologies≠ DifferentPerkinElmer≠ Different
ModificationSilica/C18✓ MatchSilica/C18✓ Match
ModeReversed-Phase✓ MatchReversed-Phase✓ Match
Particle Size3.0✓ Match3.0✓ Match
Length50✓ Match50✓ Match
Internal Diameter0.075≠ Different4.6≠ Different
Pore size200? Missing or unconfirmedNot recorded? Missing or unconfirmed
Surface Area200? Missing or unconfirmedNot recorded? Missing or unconfirmed
Carbon Load, %10.0≠ Different13.0≠ Different
pH stability from2.0? Missing or unconfirmedNot recorded? Missing or unconfirmed
pH stability to8.0? Missing or unconfirmedNot recorded? Missing or unconfirmed
BrandSepax HP 200 C18≠ DifferentBrownlee Analytical DB C18≠ Different
EndcappedNot recorded? Missing or unconfirmedYes? Missing or unconfirmed
Product UsageAcidic compounds, Basic compounds, Neutral compounds, Peptides, Pharmaceutical molecules? Missing or unconfirmedNot recorded? Missing or unconfirmed

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, Neutral compounds, Peptides, Pharmaceutical moleculesNot recordedExcluded, missing data
Carbon Load, %
Numeric closeness, falling to zero at a 50% relative difference.
10.013.053.8% × 15 = 8.08 points
Endcapping
Recorded endcapping values overlap.
Not recordedYesExcluded, missing data
Pore Size
Numeric closeness, falling to zero at a 50% relative difference.
200Not recordedExcluded, missing data
Surface Area
Numeric closeness, falling to zero at a 50% relative difference.
200Not recordedExcluded, missing data
pH Stability
The overlapping pH range divided by the combined pH range.
2.0 to 8.0Not recordedExcluded, missing data
Particle Size
Numeric closeness, falling to zero at a 20% relative difference.
3.03.0100.0% × 4 = 4.00 points

Score withheld because the minimum data requirements are not met.

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