Plate-reader results

Carry plate layouts, assay calculations and result qualifiers into sample review. Keep the original export available for inspection.

Map a duplicate-well assay

Keep the observations behind the reported summary. The labels below illustrate a configuration; use the units and calculations defined by your assay.

  1. Plate and layout

    Plate PL-19 / layout revision 2

    Preserve the sample, standard, blank and control assignments.

  2. Well observations

    B3 and B4 / sample S-8

    Retain each signal with its channel, dilution and qualifier.

  3. Sample summary

    S-8 / analyte A / replicate mean

    Record the calculation and included wells; do not discard an excluded replicate.

  4. Review evidence

    Export and analysis report

    Link the exact source revision that produced the reported result.

Treat the plate layout as part of the result.

A well address such as A1 identifies a position within a plate, not a sample on its own. Preserve the plate or run identity and the layout used during analysis. That layout should distinguish unknown samples, standards, blanks and controls, along with any replicate or dilution assignments needed to understand the exported values.

Confirm how the source labels rows and columns and how it represents partially populated plates. An import that shifts a column can produce plausible numbers attached to the wrong samples. Resolve sample references before creating result records, and hold unknown identities for review rather than matching on a shortened display name.

Separate signals from calculated concentrations.

Absorbance, fluorescence and luminescence signals are not interchangeable with the concentrations calculated from them. Capture the measurement mode, channel or wavelength and the assay method as applicable. When the vendor software applies blank correction, dilution or a standard curve, retain the evaluated result together with the calculation context exposed by the export.

A kinetic measurement adds another axis: time. A spectral scan adds wavelength. Multiplex assays can report multiple analytes for one well. Choose whether your destination grain is a well observation, an analyte result or a reviewed sample summary. Keep the underlying observations even when the workflow uses a replicate mean.

Use the real report layout to configure collection.

Select a supported export in the installed reader software and keep a representative file with its corresponding vendor report. Some workflows need both a table of values and a separate plate layout or analysis report. Confirm which source contains the final evaluated result before writing a parser for the first numeric table you find.

Use Seal IoT for a completed-file handoff from the local workstation. A Seal Script can then validate the expected columns, plate identity and result types, preserve the source File and populate your chosen fields. Keep the export until both delivery and mapping are verified. Recheck the layout after a report-template or software change.

Keep assay exceptions visible.

Missing wells, excluded replicates, failed controls and results outside the reportable range need explicit treatment. Do not coerce text such as ‘below range’ into zero or replace a failed concentration fit with the raw signal. Keep the qualifier and the reported value as separate information where the source provides them.

If results will be sent onward to a LIMS, agree its sample, test and analyte identifiers and the permitted status transition. Uploading evidence, creating a calculated result and releasing that result are different steps. Confirm what the receiving system accepted and retain its record identity rather than assuming that a successful file upload completed the exchange.

Test it with your data.

Use these cases to agree and test the connection’s behaviour. They are proposed acceptance checks, not completed tests or automatic connector features.

A well has a value but no sample assignment

B03 contains a measurement, but the supplied plate map does not identify its sample or role.

Expected behaviour
Retain the measurement as unresolved. Do not guess its sample from neighbouring wells or its position in the export.
Evidence to keep
The original plate map, well identity and the eventual corrected assignment.

The result is below the reporting range

The source analysis reports a qualified result rather than an exact concentration.

Expected behaviour
Preserve the qualifier and reporting bound. Do not convert it into an exact value or a valid zero for downstream calculations.
Evidence to keep
The source text, qualifier, unit and receiving representation.
More checks for this connection
  • Use a plate with a blank, control, standard and known sample; compare their identities and values with the source report.
  • Test an empty well, an excluded replicate and an out-of-range result without converting any of them into zero.
  • Import a kinetic or multi-analyte example if that mode is in scope and confirm its extra dimension is preserved.
  • Re-import the same plate, then a revised analysis, and verify that duplicate handling does not hide the revision.

Before you connect

Can one mapping work for every assay on a reader?

Only where the export contract and meaning of the fields are the same. Different detection modes, analysis templates or multiplex layouts can require different mappings even on the same instrument. Version and test the contract you actually use.

Can neil compare results across plate readers?

Once the records share explicit sample, analyte, method and unit definitions, neil can use them in an agreed comparison. Matching column names alone does not establish that two assays measure equivalent results.

Check your system’s connection options.

Confirm the installed version, available exports and permissions. These pages cover the source interface and link to setup instructions.

For configuration: Seal Scripts and local-file collection.

Start with one export.

Bring the source evidence and the records it needs to connect to. For this workflow, a useful starting pack is:

  • A plate result export with its layout and analysis method.
  • Sample identifiers, replicate groups, standards and blank assignments.
  • A known reported result with units, dilution and any out-of-range qualifier.
Discuss this connection