Element    SampleOrigin

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Name	Type	Require	Description
Identity	String	true
Description	String	true	Free text annotation of the sample
Condition	String	true	Nature of experimental variable
Environment	String	true	Description of other parameters
Organism	Organism	false	Identifiers for the organism used
Tissue Type	String	false	Description of tissue type used
Cell Type	String	false	Description of cell type used
Cell Cycle Phase	String	false	Phase of cell cycle at which cells were harvested
Cell Component	String	false	Subcellular fraction used
Technique	String	false	Details of extraction method(s)
Metabolic Label	String	false	Details of any metabolic label used
Buffer	String	false	Buffer
Quantification Type	String	false	Sample quantification type
Keep Condition	String	false	Sample keeping condition
Tagging Process	TaggingProcess	false	Details of chemical tagging