Analysis of Fungicide on the Peel Surface of Imported Oranges (2)—Identifying Substances by MS/MS Analysis—

User Benefits

- Whether or not a target substance is present on the surface of the sample can be judged with only simple pretreatment. - The combination of DPiMS QT and LCMS -9050 can identify substances in a sample with a simple pre-treatment, taking advantage of the high MS accuracy of the Q-TOF mass spectrometer and MS/MS analysis.

Introduction

Due to the long transport time of agricultural products imported to Japan from overseas, post-harvest pesticides are applied after agricultural products are harvested to prevent mold or decay during transport. However, Japan prohibits the importation, use, or sale of foods with unapproved post-harvest agricultural chemicals. Therefore, inspection technologies that require only simple pretreatment and operating steps to determine whether or not post-harvest pesticides were used are expected to achieve shorter inspection times and result in shorter overall transport times. Application News 01-00411 “Analysis of Fungicide on the Peel Surface of Imported Oranges (1)” describes using simple operations with LCMS-9050 and DPiMS QT systems to detect the fungicide enilconazole on the peel surface of imported oranges. This article shows an example of analyzing the same pretreated samples by MS/MS tandem mass spectrometry to identify substances based on a comparison of fragment ions in addition to accurate mass values obtained by MS analysis.

March 28, 2023 GMT