Table 1.1 Conventional solvent extraction procedures for organic compounds in soils.
Compound-pesticides and Herbicides
Extractant
Clean-up
Analytical Finish
Reference
Organocholorine Insecticides
Polar solvents
Florisil
–
15
Alachlor
Methanol enrichment
–
–
16, 17
On C 18 cartridge
Bromoxynil, ioxynil residues
Solvent portioning
Solvent partitioning
Gas chromatography
18
Methanol enrichment
with ion-trap detector
Triazine type herbicides
On C 18 cartridges
–
Gradient C 18 high
19
performance liquid
chromatography
Imazupyr
Methanol
None
High-performance liquid
20
chromatography,
detection at 250 nm
Terbuthylazine and degradation
Hot acetone then cation
–
High Performance liquid
21, 22
products
exchange solid-phase
chromatography with
cartridge
photodiode array detection
Norflurazon herbicide
Methanol
Filtration
C 18 high-performance
23
liquid chromatography
Isoproturon, dichloroprop-P
Solvent
Size exclusion
High performance
24
bifenox
chromatography
liquid chromatography
Fenopropimorph and metabolite
Acetone-water,
Gel permeation
Methylation-gas liquid
25
Fenopropimorphic acid fungicide
partitioning with
chromatography
chromatography with
Methylene chloride
NP detection and GC-MS
Fenaxaprop, Fenoxapropethyl
Solvent
Florisil or alumina
High-performance
26
Liquid chromatography
Polycyclic aromatic hydrocarbons
Soxhlet extraction and
Silica gel
1 ppm detected in soil
27
saponification
Polycyclic aromatic hydrocarbons
BF 3 in methanol
–
–
28