Determination of As, Cd, and Pb in Tap Water and Bottled Water Samples by Using Optimized GFAAS System with Pd-Mg and Ni as Matrix Modifiers

Table 5

As, Cd, and Pb results of the samples analyzed.

Sample Number	As, ng/mL	Cd, ng/mL	Pb, ng/mL
TW1	N.D.	N.D.	3.50 ± 0.23
TW2	N.D.	N.D.	3.15 ± 0.21
TW3	N.D.	N.D.	N.D.
TW4	N.D.	N.D.	N.D.
TW5	N.D.	N.D.	2.03 ± 0.13
TW6	N.D.	N.D.	3.42 ± 0.22
TW7	N.D.	N.D.	2.86 ± 0.19
TW8	N.D.	N.D.	N.D.
TW9	N.D.	N.D.	N.D.
TW10	N.D.	N.D.	3.15 ± 0.21
TW11	N.D.	N.D.	2.86 ± 0.19
TW12	N.D.	N.D.	2.33 ± 0.15
TW13	N.D.	N.D.	3.98 ± 0.26
TW14	N.D.	N.D.	2.59 ± 0.17
TW15	N.D.	N.D.	3.15 ± 0.21
TW16	9.14 ± 0.75	N.D.	2.33 ± 0.15
TW17	9.20 ± 0.68	N.D.	2.33 ± 0.15
TW18	N.D.	N.D.	N.D.
TW19	N.D.	N.D.	2.59 ± 0.17
TW20	8.51 ± 1.20	N.D.	2.33 ± 0.15
TW21	8.72 ± 1.35	N.D.	2.33 ± 0.15
TW22	9.04 ± 1.80	N.D.	2.33 ± 0.15
TW23	N.D.	N.D.	2.86 ± 0.19
TW24	N.D.	N.D.	2.10 ± 0.11
TW25	N.D.	N.D.	2.40 ± 0.13
TW26	N.D.	N.D.	2.59 ± 0.14
TW27	N.D.	N.D.	3.77 ± 0.20
TW28	N.D.	N.D.	1.61 ± 0.09
TW29	N.D.	N.D.	12.66 ± 0.68
TW30	N.D.	N.D.	2.59 ± 0.14
TW31	N.D.	N.D.	2.99 ± 0.16
TW32	N.D.	N.D.	2.20 ± 0.12
TW33	N.D.	N.D.	2.79 ± 0.15
TW34	N.D.	N.D.	N.D.
TW35	N.D.	N.D.	N.D.
TW36	N.D.	N.D.	1.42 ± 0.08
TW37	N.D.	N.D.	2.01 ± 0.11
TW38	N.D.	N.D.	2.59 ± 0.14
TW39	N.D.	N.D.	1.42 ± 0.08
TW40	10.06 ± 0.82	N.D.	N.D.
TW41	11.54 ± 2.79	N.D.	1.42 ± 0.08
TW42	9.13 ± 0.99	N.D.	N.D.
TW43	9.11 ± 1.03	N.D.	1.42 ± 0.08
TW44	N.D.	N.D.	2.40 ± 0.13
TW45	N.D.	N.D.	3.18 ± 0.17
TW46	N.D.	N.D.	N.D.
TW47	N.D.	N.D.	N.D.
TW48	N.D.	N.D.	N.D.
TW49	N.D.	N.D.	N.D.
TW50	N.D.	N.D.	N.D.
TW51	N.D.	N.D.	1.00 ± 0.09
TW52	N.D.	N.D.	1.04 ± 0.08
TW53	N.D.	N.D.	N.D.
TW54	N.D.	N.D.	N.D.
TW55	N.D.	N.D.	N.D.
TW56	N.D.	N.D.	N.D.
TW57	N.D.	N.D.	N.D.
TW58	N.D.	N.D.	N.D.
TW59	N.D.	N.D.	N.D.
TW60	N.D.	N.D.	N.D.
TW61	N.D.	N.D.	N.D.
TW62	N.D.	N.D.	1.50 ± 0.07
TW63	N.D.	N.D.	N.D.
TW64	N.D.	N.D.	N.D.
TW65	N.D.	N.D.	N.D.
TW66	N.D.	N.D.	N.D.
TW67	N.D.	N.D.	N.D.
TW68	N.D.	N.D.	N.D.
TW69	N.D.	N.D.	N.D.
TW70	N.D.	N.D.	N.D.
TW71	N.D.	N.D.	1.51 ± 0.06
TW72	N.D.	N.D.	N.D.
TW73	N.D.	N.D.	N.D.
TW74	N.D.	N.D.	N.D.
TW75	N.D.	N.D.	N.D.
TW76	N.D.	N.D.	N.D.
TW77	N.D.	N.D.	2.40 ± 0.15
TW78	N.D.	N.D.	N.D.
BW1	N.D.	N.D.	2.99 ± 0.16
BW2	N.D.	N.D.	4.13 ± 0.22
BW3	N.D.	N.D.	1.78 ± 0.10
BW4	N.D.	N.D.	2.46 ± 0.13
BW5	N.D.	N.D.	2.79 ± 0.15
BW6	N.D.	N.D.	2.46 ± 0.13
BW7	N.D.	N.D.	2.10 ± 0.11
BW8	N.D.	N.D.	N.D.
BW9	N.D.	N.D.	2.46 ± 0.13
BW10	N.D.	N.D.	N.D.
BW11	N.D.	N.D.	4.82 ± 0.26
BW12	N.D.	N.D.	2.10 ± 0.11
BW13	N.D.	N.D.	1.78 ± 0.10
BW14	N.D.	N.D.	1.78 ± 0.10
BW15	N.D.	N.D.	2.79 ± 0.15
BW16	N.D.	N.D.	3.12 ± 0.17
BW17	N.D.	N.D.	2.10 ± 0.11