Ali, Imran; Gupta, V. K.; Saini, V. K.
(Allied Publishers Pvt. Limited, New Delhi, 2004)
A solid phase extraction (SPE) method was developed for phenol, 4-nitrophenol, 4-
chlorophenol and 4-cyanophenol from the wastewater. The percentage recoveries were 95, 93,
92 and 90 for phenol, 4-nitrophenol, ...