Duplicate QC Sample

• Duplicate QC Sample
  • Description
  • Properties
  • Processes used to Create Duplicate QC Samples
  • QC Assessments Performed

Description

A sample made from a client sample during sample preparation, or during sample preparation, to assess the precision (a measure of the ability to reproduce analytical results) of the sampling and sample preparation process and set the Precision Status.

Properties

Primary Analytical Type	Duplicate
Primary QC Type Code	The code of a QC type that has an Analytical Type of Duplicate.
Secondary Analytical Type	N/A (This is the actual content of the field, and implies that secondary assessment is not applicable.)
Secondary QC Type Code	<empty>
Duplicate Original Sample	The code of a sample that has a Primary Analytical Type of Unknown.
Spike Original Sample	<empty>
Standard Code	<empty>
Standard Lot Code	<empty>

Processes used to Create Duplicate QC Samples

• Appending/Overwriting QC for a job scheme where the QC mask has a QC mask member with an Analytical Type of Duplicate, its QC Type Code is a QC type that has an Analytical Type of Duplicate, and its Secondary QC Type Code is not defined.
• Creating a duplicate sample via the CCQCSM—QC Sample Modification application from workbook.

QC Assessments Performed

1. Assessment of the Precision of Analysis, due to the fact that its Primary Analytical Type is Duplicate.

   The sample's Primary QC Type Code must be a QC type that has an Analytical Type of Duplicate.

   The sample's Duplicate Original Sample Code is a client sample.