Table 2. Component Concentrations of Tri- and Pentacyclic Terpanes (ng/L).

compound	abbreviation	m/z	DFS-45	DFS-69	DFS-128	DFS-133	DFS-148	DFS-M68	DFS-X	LS
C19 tricyclic terpane	19TT	191	0.3	0.6	0.8	0.5	0.5	0.4	0.8	0.8
C20 tricyclic terpane	20TT	191	0.3	0.1	0.1	0.1	0.1	0.6	0.1	0.1
C21 tricyclic terpane	21TT	191	0.2	0.2	0.2	0.2	0.1	0.3	0.2	0.3
C22 tricyclic terpane	22TT	191	0.1	0.1		0.1	0.2	0.3	0.1
C23 tricyclic terpane	23TT	191	0.2	0.2	0.2	0.2	0.2	0.3	0.2	0.3
C24 tricyclic terpane	24TT	191	0.2	0.1	0.2	0.2	0.2	0.4	0.2	0.3
C25 tricyclic terpane	25TT	191	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.2
C26 tricyclic terpane	26TTa	191	0.1	0.1	0.1	0.1	0.1	0.2	0.1	0.2
C26 tricyclic terpane	26TTb	191	0.1	0.1	0.1	0.1	0.1	0.2	0.1	0.1
C28 tricyclic terpane	28TTa	191	0.04	0.1	0.2	0.1	0.1	0.3	0.2	0.2
C28 tricyclic terpane	28TTb	191		0.1	0.1	0.1	0.1	0.1	0.2	0.2
C29 tricyclic terpane	29TTa	191		0.1	0.1	0.2	0.1	0.2	0.2	0.2
C29 tricyclic terpane	29TTb	191		0.1			0.1	0.1	0.2	0.2
C30 tricyclic terpane	30TTa	191		0.1			0.1		0.1	0.2
C30 tricyclic terpane	30TTb	191							0.1
tricyclic terpane total			1.6	2.0	2.2	1.9	2.1	3.5	2.7	3.2
18a(H)-22,29,30-trisnorneohopane	Ts	191	0.2	0.2	0.2	0.2	0.2	0.4	0.2	0.3
17a(H)-22,29,30-trisnorneohopane	Tm	191		0.2	0.1	0.1	0.1		0.2	0.4
C28 bisnorneohopane	28BH	191		0.1		0.2	0.1	0.1	0.1	0.2
C29 17α(H),21β(H) hopane	29H	191	0.3	0.4	0.5	0.4	0.4	0.5	0.5	0.8
18-α(H)-30-norneohopane	29Ts	191					0.1	0.3	0.1
C30 17α(H),21β(H) hopane	30H	191	0.7	0. 6	0.7	0.6	0.6	1.4	0.6	1.0
C30 17β(H),21α(H) hopane	30M	191						0.3	0.1
C31 17α(H),21β(H) 22S homohopane	31HS	191	0.2	0.3	0.2		0.2	0.3	0.3	0.4
C31 17α(H),21β(H) 22R homohopane	31HR	191	0.2				0.2	0.4	0.2	0.3
C32 17α(H),21β(H) 22S homohopane	32HS	191	0.1	0.2				0.3	0.1
C32 17α(H),21β(H) 22R homohopane	32HR	191						0.4	0.1
C33 17α(H),21β(H) 22S homohopane	33HS	191						0.1
hopane total			1.5	2.0	1.7	1.5	1.9	4.4	2.6	3.4