Spike Replicate QC Sample

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

Description

A pair or more of spike samples that are inserted one after the other into a group of samples during analytical preparation or at point of analytical measurement, to assess the analytical method at varying concentrations of analyte and set the Standard Status and Precision Status. These samples are essentially replicates of each other, that is, they are all spike QC samples except that the second and subsequent spike duplicate QC samples link to the first spike QC sample.

Properties

Primary Analytical Type	Spike
Primary QC Type Code	<empty>
Secondary Analytical Type	Replicate
Secondary QC Type Code	The code of a QC type that has an Analytical Type of Replicate.
Duplicate Original Sample	The code of a sample that has a Primary Analytical Type of Spike.
Spike Original Sample	The code of a sample that has a Primary Analytical Type of Unknown or Duplicate.
Standard Code	The code of a spike standard material.
Standard Lot Code	The code of a standard lot associated with the spike standard material.

Processes used to Create Spike Replicate QC Samples

• Appending/Overwriting QC for a job scheme where the QC mask has a QC mask member with an Analytical Type of Spike, its QC Type Code is a QC type that has an Analytical Type of Spike, and its Secondary QC Type Code is a QC type that has an Analytical Type of Spike, a Secondary Analytical Type of Replicate, and a Linked QC Type Code matching the QC mask member's QC Type Code.
• Creating a spike replicate sample via the CCQCSM—QC Sample Modification application from workbook.

QC Assessments Performed

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

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

   The sample's Standard Code must be a standard that has a QC Type of Spike (or Spike or Standard if the ALLOW_STANDARDS_AS_SPIKES application preference is checked).

   The sample's Standard Lot Code must be a standard lot within the standard.

   The standard lot's Specification Code must be a specification that has a Specification Type of Standard.

   The specification contains limits for the matching Scheme Code, Scheme Version, Analyte Code and Internal Unit Code.

   The sample's Spike Original Sample Code is a client sample or duplicate sample.

2. Assessment of the Precision of Analysis, due to the fact that its Secondary Analytical Type is Replicate.

   The sample's Secondary QC Type Code must be a QC type that has an Analytical Type of Spike and a Secondary Analytical Type of Replicate and a Linked QC Type Code matching the sample's Primary QC Type Code.

   The sample's Duplicate Original Sample Code is the first spike sample in the pairing.