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See
Table
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(b)
Quantitative calculations.—
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) Use instrument data
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matched calibration curve of response ratio versus concentration of
pesticide in standard solution.
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Relative intensity
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GC/MS
(relative), %
GC/MS/MS, LC/MS/MS
(relative), %
>50
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>20–50
±15
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matched calibration curve, calculate the concentration of each
pesticide found in the samples.
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3
) If a validated computer system is not being used for
calculations, follow the steps below:
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) Calculate the ratio of the analyte response to that of the
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c
) Run a linear regression analysis using the ratio of each
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(
e
) Calculate the amount of each pesticide in the solution
injected from the standard curve.
(
f
) Calculate the amount of each pesticide present in the sample.
Test results should be reported to two decimal places or four
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Reference:
J. AOAC Int
.
98
, 1428(2015)
'2,
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Posted: October 13, 2015