fractionation: Compute the mass fractionation correction

In pvermees/ArArRedux: Rigorous Data Reduction and Error Propagation of Ar40 / Ar39 Data

Description

Compares the measured 40Ar/36Ar ratio of an air shot on a given detector with the atmospheric ratio.

Usage

fractionation(fname, detector, MS = "ARGUS-VI", PH = FALSE)

Arguments

fname	a .csv file with the air shot data
detector	the name of the ion detector
MS	the type of mass spectrometer
PH	TRUE if the data were recorded in 'peak hopping' mode, FALSE if recorded in multicollector mode.

Value

an object of class logratios

Examples

data(Melbourne)
fd37file <- system.file("AirL2.csv",package="ArArRedux")
fd40file <- system.file("AirH1.csv",package="ArArRedux")
fract <- list(fractionation(fd37file,"L2",PH=TRUE),
              fractionation(fd40file,"H1",PH=FALSE))
if (isTRUE(all.equal(Melbourne$fract,fract))){
  print("We just re-created the fractionation correction for the Melbourne dataset")
}

pvermees/ArArRedux documentation built on May 26, 2019, 11:33 a.m.