Table 1.

Distribution of functional group of the FTIR spectra of EPSWLD and EPSMLD.

S/N	Peak (cm−1)	Functional group	EPSWLD	EPSMLD
1	453.29	Chloroalkanes	+	+
2	524.66. 549.73, 551.66	Alkyl halide	+	+
3	619.17, 621.1	Alkynes	+	+
4	702.11, 761.91	Alkanes	+	+
5	839.06, 866.07	Alkyl halide	+	+
6	908.5	Aromatics	+	+
7	1020.38, 1049.31	Alkenes	+	+
8	1101.39, 1103.32	Alkenes	+	+
9	1153.41	Alkenes	+	+
10	1274.99	Alkanes	+	-
11	1236.41	Aliphatic amines	-	+
12	1363.72, 1273.06	Alkanes	+	+
13	1419.66, 1415.8	Ester	+	+
14	1637.62, 1641.48	Un-Saturated Ester	+	+
15	1658	Amide	+	-
16	2061.96	Alcohol	+	+
17	2364.81, 2360.95	Alcohol	+	+
18	2928.04, 2929.97	Aldehyde	+	-
19	3404.47, 3385.18	Hydroxyl/alcohol	+	+