Micelle Mediated Trace Level Sulfide Quantification through Cloud Point Extraction

Table 4

Determination of dissolved sulfide from bore well and pond water samples using extraction procedure.

Sample	Sulfide found (ppm)	Sulfide added (ppm)	Total sulfide (ppm)	Recovery of added sulfide (%)
A^a	0.297±0.037	0.5	0.810±0.033	101.6
B^a	0.475±0.028	—	—	—
A^b	0.139±0.030	0.5	0.661±0.036	103.4
B^b	0.636±0.030	—	—	—

Values given here are the average of three measurements ± RSD.
^aWater samples were collected from bore wells located near the dump sites.
^bWater samples were collected from ponds located near the dump sites.