Characterization of Functionalized Polyurethane Foam for Lead Ion Removal from Water

Table 2

Retention times of foam samples.

Sample	Peak retention time (mins)
A1	11.4
A2	9.5	11.3
A3	8.6	11.1	11.6
A4	7.7	11.0	11.7	13.7	14.6
B7	9.2	11.4
C9	9.4	11.0	11.4	13.9
C10	9.4	9.7	10.6	11.7	15.3