YUE Chao,MAO Si-hao,ZHOU Xia,RUAN Hao,LIU Zhu,WANG Feng.Detection of 19 Plant Growth Regulators and Fungicides in Radix Ophiopogonis by Automatic QuEChERS Combined with UPLC-MS/MS[J].Journal of Instrumental Analysis,2025,44(02):318-325.
YUE Chao,MAO Si-hao,ZHOU Xia,RUAN Hao,LIU Zhu,WANG Feng.Detection of 19 Plant Growth Regulators and Fungicides in Radix Ophiopogonis by Automatic QuEChERS Combined with UPLC-MS/MS[J].Journal of Instrumental Analysis,2025,44(02):318-325. DOI: 10.12452/j.fxcsxb.240818322.
Detection of 19 Plant Growth Regulators and Fungicides in Radix Ophiopogonis by Automatic QuEChERS Combined with UPLC-MS/MS
To establish a method for the detection of 19 plant growth regulators and fungicides in
Radix Ophiopogonis
by automatic QuEChERS method combined with ultra high pressure liquid chromatography-triple quadrupole tandem mass spectrometry(UPLC-MS/MS). The sample was prepared by using the volatile salt ex
traction solution system combined with a fully automatic QuEChERS instrument. The 19 target compounds were separated on an ACQUITY UPLC BEH C
18
column(1.7 μm,3.0 mm × 100 mm) with gradient elution using 0.05% formic acid-2 mmol/L ammonium formate -acetonitrile as the mobile phase,and detected with UPLC-MS/MS instrument using the external standard method and matrix quasi curve. The results showed 19 agricultural chemicals showed good linear relationships in the ranges of 5-200 ng/mL,with correlation coefficients greater than 0.999. The limits of detection(LODs) and quantitation(LOQs) for 19 carbamate pesticides were 0.048-1.68 μg/kg and 0.16-5.61 μg/kg,respectively. A spiked recovery test was using black-matrix at three spiked levels. Good recoveries for 19 agricultural chemicals were obtained with recoveries of 62.8%-117% and RSDs(
n
=6) of 1.9%-9.1%. The method was used to detect 30 batches of Zhejiang
Radix Ophiopogonis
,some samples were found to contain 3-indoleacetic acid,tetraconazole,flucon-azole,and diethyl aminoethyl hexanoate. This method was efficient,convenient,accuracy,was suitable for the rapid detection of 19 plant growth regulators and fungicides in
Radix Ophiopogonisplant growth regulatorfungicidefully automatic QuEChERS instrumentultra high pressure liquid chromatography-triple quadrupole tandem mass spectrometry(UPLC-MS/MS)batch testing
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