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Analyte
13
C
-PAH used for signal normalization
Anthracene
Anthracene (
13
C
6
)
Benz[
a
]anthracene
Benz[
a
]anthracene (
13
C
6
)
Benzo[
a
]pyrene
Benzo[
a
]pyrene (
13
C
4
)
Benzo[
b
@ÀXRUDQWKHQH
Benzo[
b
@ÀXRUDQWKHQH
13
C
6
)
Benzo[
g,h,i
]perylene
Benzo[
g,h,i
]perylene (
13
C
12
)
Benzo[
k
@ÀXRUDQWKHQH
Benzo[
k
@ÀXRUDQWKHQH
13
C
6
)
Chrysene
Chrysene (
13
C
6
)
Dibenz[
a,h
]anthracene
Dibenz[
a,h
]anthracene (
13
C
6
)
Fluoranthene
Fluoranthene (
13
C
6
)
Fluorene
Fluorene (
13
C
6
)
Indeno[1,2,3-
cd
]pyrene
Indeno[1,2,3-
cd
]pyrene (
13
C
6
)
Naphthalene
Naphthalene (
13
C
6
)
Phenanthrene
Phenanthrene (
13
C
6
)
Pyrene
Pyrene (
13
C
6
)
1-Methylnaphthalene
Naphthalene (
13
C
6
)
2,6-Dimethylnaphthalene
Phenanthrene (
13
C
6
)
1-Methylphenanthrene
Phenanthrene (
13
C
6
)
1,7-Dimethylphenanthrene
Phenanthrene (
13
C
6
)
3-Methylchrysene
Chrysene (
13
C
6
)
where
c
13C-PAH
is the concentration of the corresponding
13
C-PAH in
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X
13C-PAH
is the amount
of the corresponding
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preparation of the calibration standard solutions,
c
13C-PAH
LV J /
X
13C-PAH
LV QJ DQG
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In the collaborative study, eight concentration levels were used
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a
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If a well-characterized quadratic relationship occurs, then a best-
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normalized signals of the nearest two calibration standards that
enclose the analyte signal in the sample can be used to interpolate
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Anal. Chim. Acta
707
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J. AOAC Int
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98
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Posted: April 30, 2015