Using SEM-EDX and ICP-OES to Investigate the Elemental Composition of Green Macroalga Vaucheria sessilis

Table 2

Atomic concentration of the elements (%) on the surface (b) and in the cross section (b′) of macroalga Vaucheria sessilis after bioaccumulation.

Element	Atomic concentration of the elements (%)
	b	b′	b	b′	b	b′
	MA-natural		MA-Cu		MA-Zn
C	48.2	37.5	42.8	36.3	54.5	37.1
Cl	<LLD	<LLD	<LLD	<LLD	<LLD	<LLD
O	48.2	55.2	52.8	59.4	42.6	59.1
P	0.81	0.96	1.24	0.99	0.92	0.69
S	0.84	0.92	0.51	0.33	0.56	0.37
Co	<LLD	<LLD	<LLD	<LLD	<LLD	<LLD
Cu	<LLD	<LLD	1.23	1.39	<LLD	<LLD
Fe	0.17	0.61	0.18	0.33	0.09	0.6
Mn	<LLD	<LLD	<LLD	<LLD	<LLD	<LLD
Zn	<LLD	<LLD	<LLD	<LLD	0.01	1.11
Ca	0.44	0.71	0.25	0.23	0.29	0.2
Na	0.57	0.67	0.92	0.89	0.21	0.75
Al	0.25	2.46	0.01	0.11	0.47	0

<LLD: below detection limit, Italics: below or above the detection limit.
Upper and lower limit of detection (%): Cl (0.001–2.621); Co (0.076–6.924); Cu (0.083–8.040); Mn (0.063–5.894); Zn (0.001–8.630).