Use of Functionalized Resin for Matrix Separation and Trace Elements Determination in Petroleum Produced Formation Water by Inductively Coupled Plasma Mass Spectrometry

Table 3

Analysis of variance.

	SS	𝑑𝑓	MS	𝐹	Tabulated 𝐹
Regression	2.196	9	0.2440	11.76	4.77
Residuals	0.1037	5	0.02074
Lack of Fit	0.095875	3	0.03196	8.19	19.16
Pure Error	0.007800	2	0.003900
Total SS	2.300	14

SS: sum of square; 𝑑𝑓: degree of freedom; MS: media of square; 𝐹: Fischer distribution.