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5. & . 4 solvent 6
% (' / . 4 "
6.
" solvent H % solvent ' " "
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6
# % (! " ' 7 ! 'L - .
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( ( % % petroleum ether hexane
' isooctane % methanol ' proponol
0
7. & # !'L f solvent
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(! .4
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7
7
solvent % ( AR grade 5( !
' & ! ( (cleanup)
#
7
1
6
' /* 5 & ,( " GC 6 HPLC * % PR HPLC grade
8. & solvent ! & # % ( &0 ! # 6
! H % '
5(
Y& 6
% ' / & H)
% % hexane ' isooctane
9.3.2 # $8;3 # !F # $ # O (Extraction method selection)
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71
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recovery & recovery
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9.4 # $ U O ! 8 (Cleanup)
7
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( * ! % pigment, waxes, polar impurities, fat
/
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0 organochlorine % GC ' * ( (detector) ECD #! !
1
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3 3(. (5( ( *
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0 organophosphate % GC ' detector FPD #! !
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" *5 cleanup H
." # 7 '
cleanup ' " %
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7
6
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,
& ! . 4
& 5(
