Hidden Blank QC Sample

Description

A client sample that is also identified by the laboratory as a blank to assess the calibration state of the analytical instruments and set the Standard Status, usually identified by an experienced registration user.

Properties

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

Processes used to Create Hidden Blank QC Samples

  • Update sample and change the Secondary Analytical Type to Blank and select the Standard Code and Standard Lot Code.

QC Assessments Performed

  1. Assessment of Results against Detection Limits

    The sample scheme analyte's Internal Lower DL (defaults to the scheme version analyte's Internal Lower DL) and/or the sample scheme analyte's Internal Upper DL (defaults to the scheme version analyte's Internal Upper DL).

  2. Assessment of Results against Scheme or Surrogate Limits

    Using scheme limits:

    The sample scheme's Scheme Limits Specification Code must be a specification that has a Specification Type of Scheme (defaults to the scheme's Limit Specification Code).

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

    or using surrogate limits:

    The scheme version analyte's Surrogate Recovery Lower Limit and/or the scheme version analyte's Surrogate Recovery Upper Limit.

  3. Assessment of the Product Quality of Samples

    One or more sample specification.

    Each sample specification's Specification Code must be a specification that has a Specification Type of Product.

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

  4. Assessment of the Accuracy of Analysis, due to the fact that its Secondary Analytical Type is Blank.

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

    The sample's Standard Code must be a standard that has a QC Type of Blank.

    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.