Quantification of Phytochemicals from Commercial Spirulina Products and Their Antioxidant Activities

Table 3

Content of heavy metals in the Spirulina samples available in the market.

Sample name	Amount mg/Kg dry weight
	Nickel	Zinc	Mercury	Platinum	Magnesium	Manganese	Total
1	0.211	0.533	0.002	0.001	0.002	0.076	0.825
2	4.672	5.627	0.028	0.01	0.03	0.587	10.954
3	2.016	2.397	0.017	0.008	0.018	0.603	5.059
4	2.147	1.628	0.02	0.011	0.026	0.436	4.268
5	2.199	1.235	0.017	0.008	0.014	1.17	4.643
6	3.726	6.225	0.022	0.009	0.028	0.007	10.017
7	2.601	2.817	0.018	0.011	0.028	0.007	5.482
8	3.577	1.871	0.023	0.012	0.031	0.309	5.823
9	3.519	3.267	0.021	0.011	0.03	0.008	6.856
10	2.442	2.041	0.017	0.008	0.021	0.137	4.666
11	3.785	3.007	0.019	0.008	0.028	0.008	6.855
12	3.597	2.859	0.019	0.008	0.024	0.006	6.513
13	2.857	2.901	0.019	0.008	0.026	1.643	7.454
14	2.852	2.114	0.026	0.008	0.042	0.011	5.053
15	2.437	1.568	0.02	0.008	0.028	0.008	4.069
16	2.712	2.434	0.019	0.009	0.033	1.777	6.984
17	2.948	2.513	0.021	0.009	0.028	1.8	7.319
18	2.633	1.876	0.016	0.009	0.023	1.328	5.885
19	3.731	3.184	0.017	0.009	0.036	2.248	9.225
20	2.225	1.548	0.008	0.009	0.019	1.132	4.941
21	1.618	1.478	0.014	0.006	0.02	0.005	3.141
22	1.589	4.626	0.016	0.007	0.023	0.009	6.27
23	3.272	4.428	0.02	0.008	0.018	0.008	7.754
24	3.558	3.733	0.017	0.009	0.034	1.433	8.784
25	2.319	2.586	0.017	0.008	0.024	0.006	4.96

Numbers 1 to 37 were the sample names (Table 1). Samples 26–37 were not analyzed [13].