Column comparison

Your current column and the selected column, shown together.

89%Weighted similarity

5 of 8 scoring criteria are comparable, covering 57% 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 columnKNAUER BlueOrchidP/N 03BI181BOE Selected columnDikma Technologies Inc. Endeavorsil C18P/N 87001
VendorKNAUER≠ DifferentDikma Technologies Inc.≠ Different
ModificationSilica/C18✓ MatchSilica/C18✓ Match
ModeReversed-Phase✓ MatchReversed-Phase✓ Match
Particle Size1.8✓ Match1.8✓ Match
Length30✓ Match30✓ Match
Internal Diameter2.0≠ Different2.1≠ Different
Pore size175≠ Different120≠ Different
Max Pressure800≠ Different11000≠ Different
EndcappedYes✓ MatchYes✓ Match
pH stability from2.0✓ Match2.0✓ Match
pH stability to9.0✓ Match9.0✓ Match
BrandBlueOrchid≠ DifferentEndeavorsil C18≠ Different
Surface AreaNot recorded? Missing or unconfirmed330? Missing or unconfirmed
Carbon Load, %Not recorded? Missing or unconfirmed20.0? Missing or unconfirmed
Product UsageNot recorded? Missing or unconfirmedHydrophobic compounds, Polar compounds? 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.
Not recordedHydrophobic compounds, Polar compoundsExcluded, missing data
Carbon Load, %
Numeric closeness, falling to zero at a 50% relative difference.
Not recorded20.0Excluded, 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.
17512037.1% × 10 = 3.71 points
Surface Area
Numeric closeness, falling to zero at a 50% relative difference.
Not recorded330Excluded, missing data
pH Stability
The overlapping pH range divided by the combined pH range.
2.0 to 9.02.0 to 9.0100.0% × 8 = 8.00 points
Particle Size
Numeric closeness, falling to zero at a 20% relative difference.
1.81.8100.0% × 4 = 4.00 points

50.71 ÷ 57 × 100 = 89% (rounded).

Advertise With Us

Reach thousands of HPLC scientists and researchers. Fill in your details and our team will contact you shortly.