Concentration of Inorganic Elements Content in Benthic Seaweeds of Fernando de Noronha Archipelago by Synchrotron Radiation Total Reflection X-Ray Fluorescence Analysis (SRTXRF)

Table 3

Experimental and calculated mean relative sensitivity,𝑆^′_𝑖, and mean standard deviation for chemical elements emitting X-L rays for 42≤𝑍_𝑖≤82.

Element	𝐙𝐢	𝐒^′𝐢 (experimental)	𝐬(𝐦)^𝐚	𝐒^′𝐢(calculated)
Mo	42	0.014521	0.001182	0.015121
Ba	56	0.135400	0.008366	0.119381
Sm	62	0.170940	0.007042	0.246660
Lu	71	0.457106	0.014518	0.537822
Pt	78	0.789765	0.060052	0.743550
Tl	81	0.612795	0.047333	0.707681
Pb	82	0.445363	0.012872	0.697799

^𝑎𝑠(𝑚) = standard deviation =𝑆^′_𝑖(exprimental)/√𝑛, 𝑛=9.