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10.6.2 _ $I# GC/MS (GC/MS parts)
1) Ionization source #
2 ##&6
1
1.1) Electron ionization (EI)
' !
( fragment (" % 1
1
/
electron 5 ionization chamber ' 3! ' # 5
(
(fragmentation ion) ' /! H )
/"
# & ! 5(
1.2) Chemical Ionization (CI)
' !
(
fragment ( "
1
1
/
L ' & ("3! ! "
#
!'' 9
" ( " 3 ! 3! 5
^
ionization chamber
^!' / % 5(
methane, isobutane, ammonia
6/
,
2) Mass analyzer & & " ## &6 magnetic-sector
analyzer, electrostatic analyzer, time-of-flight analyzer, ion cyclotron resonance
analyzer, quadrupole mass spectrometer-quadrupole mass spectrometer %
,
& ( "! Y
&6 path-stability mass spectrometer 3 Ion
+/
/
1
source 2 ! ("!
* '1 "
" 5 ! ' 2 ' ! J
" 5 1 5 ' ! * H)
# & # 3 & "
5 %( ("
(
7
7
0
6/
5 ' (* 5( # 'L . *
! Y
!- ("
H)
* (( "
7
& 6/ detector "
+/ ( &6 '1 ! H ( 5( " H)
"1
/
3) Detector ' % ("' 5 " " &6 faraday cup dectector, electron
/
multiplier detector, scintillation counter dectector, photographic plate dectector
10.6.3 P O :;I P U #O (Advancetage and limited)
,
1) O (advancetage) ! H & 5(' ##' 5 ##
/
7
P
/
8. * * sensitivity ' /!) ! H# % 7% ( &,
#' " ! " 5(
)
! H & ,5( ' 7 % % &0 - .
1
6/
)
2) P U # O (limited) & . & %* "
#
4 & !
0
% #0&
' / & %1 2!)
10.7 Q $ Q"#$ fh 8M; : $$t I X (High performance
liquid chromatography: HPLC)
&
V (chromatography) '& &' % "
!
*
(" $ "&
/
0
( ! # '
! '
"
% ! #
" (
/
/
*#
! & 2' & & * . ' % - . ! !
#
0
)
1
0
1
6
1
/
! & 2 ##
"
#( " V!& ' * '"( #
+
6
/
Y
