Data Item _em_specimen.concentration
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General 
- Item name
- _em_specimen.concentration
- Category name
- em_specimen
- Attribute name
- concentration
- Required in PDB entries
- no
- Used in current PDB entries
- Yes, in about 3.9 % of entries
Item Description
The concentration (in milligrams per milliliter, mg/ml)
of the complex in the sample.
Item Example
1.35
Data Type 
- Data type code
- float
- Data type detail
- float item types are the subset of numbers that are the floating numbers.
- Primitive data type code
- numb
- Regular expression
- -?(([0-9]+)[.]?|([0-9]*[.][0-9]+))([(][0-9]+[)])?([eE][+-]?[0-9]+)?
- Units
- mg_per_ml
Allowed Boundary Conditions
| Minimum Value | Maximum Value |
|---|---|
| 0.0 | +∞ |
Related Items 
| Related Item Name | Relation Type |
|---|---|
| _em_sample_preparation.sample_concentration | replaces |