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Determination of linuron in chamomile by LC-MS/MS using the QuEChERS extraction method
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Linuron is a selective herbicide used for the control of broadleaf weeds. Its
mode of action is the inhibition of photosynthesis. The QuEChERS method for
extraction of linuron residues from chamomile was used. The LC-MS/MS method
was used for determination of linuron residues. Its linearity was studied in
a range of 0.025-0.50 ?g/ml using matrix-matched calibration, and the
determination coefficient (R2) was higher than 0.99. Blank chamomile samples
were spiked with linuron solution at three concentration levels yielding
recoveries of over 90%. The internal standard added in all samples was
isoproturon-d6. There were no linuron residues in chamomile flowers, while
the residues ranged from 0.010 to 0.040 mg/kg in the flower stalk samples.
National Library of Serbia
Title: Determination of linuron in chamomile by LC-MS/MS using the QuEChERS extraction method
Description:
Linuron is a selective herbicide used for the control of broadleaf weeds.
Its
mode of action is the inhibition of photosynthesis.
The QuEChERS method for
extraction of linuron residues from chamomile was used.
The LC-MS/MS method
was used for determination of linuron residues.
Its linearity was studied in
a range of 0.
025-0.
50 ?g/ml using matrix-matched calibration, and the
determination coefficient (R2) was higher than 0.
99.
Blank chamomile samples
were spiked with linuron solution at three concentration levels yielding
recoveries of over 90%.
The internal standard added in all samples was
isoproturon-d6.
There were no linuron residues in chamomile flowers, while
the residues ranged from 0.
010 to 0.
040 mg/kg in the flower stalk samples.
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