Column comparison

Your current column and the selected column, shown together.

Limited dataNo reliable score available

3 of 8 scoring criteria are comparable, covering 39% 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 columnSiliCYCLE SiliaChrom XDB1 C18P/N H121805M-Q150 Selected columnPerkinElmer Brownlee Analytical DB C18P/N N9303862
VendorSiliCYCLE≠ DifferentPerkinElmer≠ Different
ModificationSilica/C18✓ MatchSilica/C18✓ Match
ModeReversed-Phase✓ MatchReversed-Phase✓ Match
Particle Size5.0≠ Different3.0≠ Different
Length150≠ Different50≠ Different
Internal Diameter10.0≠ Different4.6≠ Different
Pore size300? Missing or unconfirmedNot recorded? Missing or unconfirmed
Max Pressure5500? Missing or unconfirmedNot recorded? Missing or unconfirmed
EndcappedYes✓ MatchYes✓ Match
Operating Temperature60? Missing or unconfirmedNot recorded? Missing or unconfirmed
BrandSiliaChrom XDB1 C18≠ DifferentBrownlee Analytical DB C18≠ Different
Carbon Load, %Not recorded? Missing or unconfirmed13.0? Missing or unconfirmed
Product UsageBasic compounds, Hydrophobic compounds, Neutral compounds? 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.
Basic compounds, Hydrophobic compounds, Neutral compoundsNot recordedExcluded, missing data
Carbon Load, %
Numeric closeness, falling to zero at a 50% relative difference.
Not recorded13.0Excluded, missing data
Endcapping
Recorded endcapping values overlap.
YesYes100.0% × 10 = 10.00 points
Pore Size
Numeric closeness, falling to zero at a 50% relative difference.
300Not recordedExcluded, missing data
Surface Area
Numeric closeness, falling to zero at a 50% relative difference.
Not recordedNot recordedExcluded, missing data
pH Stability
The overlapping pH range divided by the combined pH range.
Not recordedNot recordedExcluded, missing data
Particle Size
Numeric closeness, falling to zero at a 20% relative difference.
5.03.00.0% × 4 = 0.00 points

Score withheld because the minimum data requirements are not met.

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