get_Rstd: Return heavy-to-light isotope ratio of primary standard.
View source: R/isotope_conversions.R
| get_Rstd | R Documentation |
Return heavy-to-light isotope ratio of primary standard.
Description
Returns the heavy-to-light isotope ratio of the dominant standard for that element. Vienna Standard Mean Ocean Water (VSMOW) for oxygen and hydrogen isotopes, Vienna Pee Dee Belemnite (VPDB) for carbon stable isotopes.
Usage
get_Rstd(element)
Arguments
element |
Which element to return standard ratio - carbon, oxygen, or hydrogen. |
Value
Heavy-to-light isotope ratio of most common stable isotope standard. VSMOW for water, VPDB for carbon.
Author(s)
Rich Fiorella rfiorella@lanl.gov
Examples
get_Rstd("carbon") # returns 0.0111797
get_Rstd("oxygen") # returns 2005.20e-6
