Var ID

00002124

Name

Kynurenine_i

Label

Kynurenine_QCstep1

Description

New in R8. 1st step QCd metabolomics data variable for raw variable Kynurenine_raw. All values below detection limit set to 0. -7 = Internal standard undetectable (Concentration unreliable). The _i in the name indicates that missingness was between 0 and 5% and the missing values have been replaced by a random imputed value between 0 and the plate-specific LOD. 2nd and final QC step on this var created new and final var BIOA_027.

Additional Information

Releases

Release 8, Release 8a, Release 10,

Data Source

Data Context

MEASURED

Data Entry

External laboratory

Data Availability

Available

Valid From

19/11/2015

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

-7

Internal standard undetectable (Concentration unreliable)

Release 10

Kynurenine_i

Release 8

Kynurenine_i

Release 8a

Kynurenine_i

All variables related to Lab measurement

OUTPUT

All variables related to Metabolomics

OUTPUT

All 1st round QCd variables related to Metabolomics

OUTPUT

All variables belonging to phase 1 of the study

OUTPUT