Table 8: Determination of cobalt in surface soil samples.

Sample and sourceCobalt (μg mL−1)
Present method*Reference method
[23]

S1Agricultural land
(red soil Anantapur.)
S2Agricultural land (black soil, Tadipatri.)
S3Riverbed soil (Tungabhadra river, Kurnool)
S4Industrial soil (electroplating industry, Anantapur)

*Average of four determinations.