Add Sample Splits

Sample splits are user-defined sub-samples taken at various stages of the preparation process, often used for twin-stream analysis to estimate the sampling variance introduced at each stage. Sample splits help ensure the precision and consistency of sample handling, providing confidence that the final results accurately represent the original material. In the AssayNet LIMS, sample splits can be added directly to the Prep Template, a framework that standardizes the entire sample preparation workflow. This allows labs to document and manage the stages at which sub-samples are taken, helping to minimize result variance and maintain quality control throughout the process.

Activity Steps

1. On the QC/QA ribbon tab, click Sample Split.

   The Sample Split screen displays.

2. Click New.

   The Add Sample Split screen displays.

3. Complete the following fields as required:
   • Code
   • Name
   • Description
   • Show Split—Includes the word 'split' in the sample ID.
   • Display Internal ID instead of Sample ID.
   • Display Results at Sample Level.

4. Select which QC Level displays in the Results Summary screen on the Instrument Runs page. Select from Samples or Analysis.

   Note: For information on how to set up control limits for sample splits, see Set up QC Analysis Code Options.