Characteristics of petroleum contaminants and their distribution in Lake Taihu, China

BMC Chemistry

Table 2 Evaluation indices of n-alkanes for water from Lake Taihu

Sampling points	Main peak carbon	Carbon number distribution	CPI	OEP	Pr/Ph	Pr/C17	Ph/C18
S8	16	11-28	0.96	0.71	0.54	0.73	1.27
S10	20	8-33	1.11	1.03	0.60	0.54	0.59
S11	15,25	8-30	1.14	1.09	0.87	0.59	0.88
S24	18	8-29	0.68	0.85	1.29	0.47	0.35
S16	16	8-31	1.00	0.90	1.00	0.53	0.60
S16-1	15	8-29	1.27	1.43	0.91	0.59	0.69
S16-2	16	8-31	1.41	0.51	1.00	0.43	0.75

Note:
CPI: Carbon predominance index; OEP: Odd-even predominance; Pr: Phytane; Ph: Pristane.
The evaluation indices of n-alkanes include main peak carbon, carbon number distribution, CPI, OEP, Pr/Ph, Pr/C17, Ph/C18, from these indices, the source of n-alkanes in Taihu Lake water can be explored.

ISSN: 2661-801X