. 1966 Mar-Apr;70A(2):193–197. doi: 10.6028/jres.070A.016

Table 4.

Determination of mass discrimination in ionization

Mass spectrometer	Determination number	Calibration mix I		Calibration mix II		Average correction factor for each determination (4 mass units)
		Theor. Cr⁵⁰/Cr⁵⁴= 0.88476		Theor. Cr⁵⁰/Cr⁵⁴= 1.82648
		Obs. Cr⁵⁰/Cr⁵⁴	$R a t i o : \frac{T h e o r .}{O b s .}$	Obs. Cr⁵⁰/Cr⁵⁴	$R a t i o : \frac{T h e o r .}{O b s .}$
MS-2	1	0.91043	0.97180	1.87682	0.97318	0.97249
	2	.91168	.97047	1.87544	.97390	.97218
MS-4	3	.90922	.97310	1.87806	.97254	.97282
	4	.91088	.97133	1.87.555	.97384	.97258