Table 2
(continued)
Analytes (LOD
ng/mL; LOQ ng/mL);
DF
Sample volume (V),
hydrolysis (H), extraction
(E), cleanup (C),
instrument (I)
Extraction and cleanup details
Derivatization
Notice
Ref.
nd); DF, nd
cis-DCCA
(0.05; nd);
DF, nd
trans-DCCA
(0.05;
nd); DF, nd
DBCA (0.10; nd); DF,
nd
3PBA (0.02; nd); DF,
nd
4F3PBA (0.02; nd);
DF
– nd
3PBA (0.5; nd); DF,
nd
V: 5 mL
H: acidic (1 mL H
2 SO
4 ;
2 h, 100
C)
E: LLE
C: SPE (silica)
I: GC-ECD
LLE:
• Extraction: 2
 5 mL DCM
• Dehydration: anhydr.
Na
2 SO
4
• Evaporation (rotary vacuum)
Derivatization
Cleanup:
• Dilution with 5 mL
H
2 O + 2
 2 mL n-hexane
• Dehydration: anhydr.
Na
2 SO
4
• Evaporation (rotary vacuum)
• Reconstitution: 1 mL hexane
SPE
• Conditioning: 2 mL toluene,
4 mL hexane
200
μL of acetone solution of
PFBBr (dilution 1:100) + 15
μL
K
2 CO
3 (60% w/v in water) + 4 mL
acetone ->overnight at RT
PFBBr
– strong
lachrymator
[5]
60
B. Wielgomas et al.