Variable Info
Variable Information
Fenland | Release 8
FA_Ratio
Attribute
Value
Var ID
00001627
Name
FA_Ratio
Label
FA Ratio BLK total PA /sample total PA
Description
Fatty acid control. The ratio of blank (BLK) total peak area (PA) to sample total PA. The blank chromatogram (no plasma) gives background noise for system and solvents and the tiny peaks are summed. We then ratio this blank total PA to sample total PA. The sum of the PA for the sample should be bigger than for the blank (ratio approximates to zero). If a very small quantity of plasma is present or if an injection error occurs then the ratio becomes closer to 1.
Additional Information
Releases
Release 8, Release 8a,
Data Source
Data Context
MEASURED
Data Entry
External laboratory
Data Availability
Available
Valid From
05/02/2015
Valid To
Present
Is Current
True
Data type
Real
Minimum Value
Maximum Value
Warning Minimum Value
Warning Maximum Value
Significant figures
Decimal Places
Maximum Length
Pattern
Format
Coding
Code
Text
Template Usage
Variable history
Release
Name
Master name
FA_Ratio
Release 10
Release 8
FA_Ratio
Release 8a
FA_Ratio
Belonging groups
Name
Description
Type
All variables related to Lab measurement
OUTPUT
All variables related to Fatty Acid measurement
OUTPUT
All raw variables related to Fatty Acid measurement
OUTPUT
All variables belonging to phase 1 of the study
OUTPUT