Solution to gas weighing challenge

Absolute isotope ratios of carbon dioxide – a feasibility study

“…Furthermore, in our approach the calculation of the associated uncertainties is done via a Monte Carlo simulation, which leads to more reliable values of the best estimates and their associated uncertainties. Also, our improved buoyancy 49,50 correction is completely different. Our approach bears some advantages which justify further efforts to improve it.…”

“…At every time t x , it is important to record the ambient conditions, air pressure p, air humidity 4 and air temperature w. The masses of the two parent gases were then calculated using eqn (13a) and (13b), respectively. 49,50 In these two equations, r air,y is the air density at time t y , m are dened analogously, but during all these procedures, r stays evacuated. r cal is the density of the calibration weight used for calibrating the balance.…”