. 2021 Sep 15;6(38):24595–24601. doi: 10.1021/acsomega.1c03217

Table 2. Content (% wt) of Ca and Fe in Graphite after the Addition of 4.5 mg Ca per 1 g of Initial Graphite According to XRF Analysis^a.

no.	Ca	Fe	Ca/Fe
1	0.629/70.90	0.278	2.26
2	0.614/72.5	0.295	2.08
3	0.603/65.3	0.302	2.00
4	0.611/69.5	0.288	2.12
5	0.605/70.6	0.305	1.98
±Δ₁	0.61 ± 0.01/69.8 ± 2.7	0.294 ± 0.01	2.09 ± 0.11

The carbon content is taken equal to 99% wt.

Table 2. Content (% wt) of Ca and Fe in Graphite after the Addition of 4.5 mg Ca per 1 g of Initial Graphite According to XRF Analysisa.