Development of an In-Field Method for the Detection of Barium in Various Water Samples Using Differential Pulse Anodic Stripping Voltammetry

Table 2

Total Ba concentrations determined in 5 brake pad dust samples, taken from wheel rims, brake calipers, and pads from cars at a local mechanic’s garage. The F value is 0.724.

Sample	ASV (mg/L)	ICP-MS (mg/L)	% difference
1	14.5	12.0	9.4
2	8.4	8.3	0.6
3	1.6	1.5	3.2
4	2.8	2.7	1.8
5	4.9	4.7	2.1