Ill 
Table 34: Total PCA concentrations obtained by EI-MS/MS as well as sPCAs and mPCAs levels determined by CH 4 /CH 2 C1 2 -NICI in sediments from the Baltic 
Sea. This method covers Cl3.i 0 - C °mpounds, while conventional ECNI detects Cl 5 _i 0 PCA. Concentrations determined by ECNI are given in brackets for some 
samples to demonstrate that generally lower levels are found with this method. 
Sample site 
Total PCA a 
[ng/g dw] 
Total PCA a 
[ng/g TOC] 
sPCAs a 
EC 10 -C 13 
mPCAs b 
ec 14 -c 15 
mPCAs c 
ec 14 -c 16 
[ng/g dw] 
s+mPCAs 
ECio-Cis 
Baltic Sea 
710 (2001) 
262 
8.4 
98 
199 
d 
297 
710 (2002) 
377 
7.1 
128 
303 
d 
431 
710 (2004) 
45 
9.4 
13 (15) 
36 (23) 
37 
49 (38) 
715 (2001) 
116 
4.0 
48 
91 
d 
139 
715 (2004) 
83 
2.7 
35 (22) 
51 (43) 
54 
86 (65) 
718 (2001) 
141 
3.7 
21 
48 
d 
69 
718 (2004) 
232 
b 
82 (53) 
141(85) 
149 
223 (138) 
721 (2001) 
142 
2.4 
105 
131 
d 
236 
721 (2002) 
108 
2.1 
91 
153 
d 
244 
721 (2004) 
138 
2.8 
44 (27) 
74 (72) 
81 
118 (99) 
ECKFBU 
158 
3.9 
29 (31) 
70 (39) 
77 
99 (70) 
ODER 
75 
b 
18(8) 
42 (22) 
43 
60 (30) 
RUDEN 
136 
4.8 
25 (26) 
58 (33) 
61 
83 (59) 
a Quantification with sPCA standard of 55.5 % Cl; b Quantification with mPCA standard of 57 % Cl; c For some samples Ci 6 was 
included to demonstrate that it contribute insignificantly to the total mPCA amount; d Ci6 not determinable.