Evaluation of Minerals Content of Drinking Water in Malaysia

Table 5

Percentage of relative standard deviation (RSD) of minerals in drinking water (DW), mineral water (MW), and tap water (TW) samples.

Sample	Na	Mg	K	Ca	Fe	Cu	Zn	Cr	Ni	As
DW 1	5.2	6.3	—	28.7	31.7	7.1	1.8	52.0	0.3	34.8
DW 2	1.1	—	2.2	—	35.2	7.5	3.8	13.3	37.2	17.1
DW 3	0.4	—	1.4	—	19.3	3.9	2.6	27.6	20.0	44.7
DW 4	—	—	—	—	28.4	9.7	0.3	4.6	27.1	22.8
DW 5	0.6	—	2.0	—	8.7	5.5	2.0	8.1	39.5	38.0
DW 6	0.9	3.6	1.5	0.3	12.8	10.1	4.4	1.1	81.6	40.9
DW 7	0.7	12.0	1.0	7.1	3.7	4.4	1.3	30.2	18.6	3.8
DW 8	—	—	—	—	11.2	4.3	3.9	12.2	15.2	4.2
DW 9	1.1	—	44.1	—	5.2	9.8	1.4	8.1	15.7	19.7
DW 10	0.4	2.3	1.1	3.2	6.6	4.1	1.8	12.2	65.5	30.6
DW 11	0.6	3.2	0.1	0.7	9.3	4.3	0.6	—	35.5	—
DW 12	0.3	1.2	0.2	2.2	3.7	3.9	1.6	33.1	25.2	—
DW 13	0.6	1.8	0.4	0.3	5.1	4.5	0.6	2.1	10.8	22.2
DW 14	0.6	0.3	1.0	0.7	9.6	7.7	2.6	6.4	31.9	3.7
MW 1	1.2	1.2	0.7	1.1	9.1	2.5	2.2	18.1	12.5	19.5
MW 2	1.3	0.7	1.1	1.2	15.7	2.2	1.4	25.6	5.9	3.5
MW 3	0.9	5.9	1.1	7.0	6.8	3.3	1.1	14.5	37.6	28.3
MW 4	0.6	0.6	0.4	1.1	16.6	2.6	0.5	2.6	24.2	13.2
MW 5	0.7	0.9	2.2	0.2	3.8	6.9	0.8	5.9	2.6	12.4
MW 6	0.4	0.5	1.5	1.7	6.7	4.3	0.8	13.5	39.2	3.0
MW 7	0.8	0.7	1.1	2.1	12.0	3.3	1.0	4.1	15.8	0.6
MW 8	0.6	0.5	0.3	3.9	2.5	1.7	1.5	2.1	10.6	24.5
MW 9	0.4	0.6	0.5	2.1	16.6	4.0	0.9	4.6	10.9	15.2
MW 10	0.2	0.3	1.1	3.2	11.1	3.7	0.7	7.5	44.6	0.8
MW 11	0.3	1.9	2.9	1.0	15.5	2.6	0.5	9.1	10.4	1.0
MW 12	0.4	1.3	0.8	0.7	19.9	3.2	1.0	4.7	14.1	1.5
MW 13	0.5	2.0	1.5	0.8	21.1	3.1	1.2	2.4	11.6	17.1
TW 1	1.43	0.72	1.60	0.60	7.58	5.73	2.03	9.3	2.8	1.1
TW 2	0.96	0.59	2.20	0.90	22.18	5.59	5.67	7.3	26.4	0.6
TW 3	0.48	1.33	0.65	0.43	5.41	6.45	1.43	6.7	18.5	29.8
TW 4	0.79	0.85	0.98	1.18	4.49	1.74	1.83	4.2	8.0	7.4
TW 5	0.68	0.72	0.98	0.61	2.18	7.87	1.58	2.4	31.3	24.6
TW 6	1.29	0.57	0.52	0.23	13.9	1.73	1.60	4.8	7.2	22.2
TW 7	1.28	1.15	0.35	1.44	4.7	6.17	2.21	0.1	23.9	14.1
TW 8	0.34	0.33	0.46	0.54	6.34	2.17	0.64	30.7	10.5	26.4
TW 9	0.56	0.35	0.54	0.50	5.75	3.25	0.77	6.3	53.7	26.4
TW 10	0.10	0.57	0.73	1.25	—	5.44	1.32	33.1	24.0	8.7
TW 11	0.35	0.70	1.28	1.55	1.67	3.26	5.17	4.7	3.4	26.9
TW 12	0.79	0.40	0.71	0.25	4.26	0.73	5.94	14.3	16.9	5.9
TW 13	0.27	0.93	1.11	0.41	3.56	5.94	0.50	1.3	16.5	15.1
TW 14	0.55	0.50	0.86	0.27	7.12	8.83	2.47	1.8	20.3	70.0
TW 15	0.49	0.82	0.62	0.94	8.46	3.46	1.10	11.2	11.2	25.7
TW 16	1.88	0.33	0.51	0.49	1.56	2.51	0.34	3.7	19.9	18.4
TW 17	1.68	0.50	1.02	0.73	9.86	6.75	4.60	0.9	2.9	0.1
TW 18	0.55	0.95	0.97	0.45	5.75	3.40	0.54	0.7	18.2	9.0
TW 19	0.78	1.48	1.44	0.53	9.65	3.40	4.86	16.6	8.3	28.8
TW 20	0.28	0.41	1.38	0.53	1.64	1.37	0.67	3.1	13.1	15.5
TW 21	1.12	1.14	1.36	1.95	1.63	4.41	0.72	11.9	15.7	35.4
TW 22	1.45	1.48	0.79	1.91	7.13	2.51	2.05	1.1	7.3	2.8
TW 23	1.23	0.65	0.90	0.38	0.34	1.41	1.65	3.4	8.2	25.5
TW 24	3.37	0.88	1.22	1.01	1.93	2.36	2.47	2.5	15.1	7.8

RSD (%) was generated by AAS novAA 400 software, RSD (%) for other minerals were not determined.