Comprehensive analysis of commercial biopesticides using UHPLC and GC-HRMS: Targeted, suspect and unknown component determination

Reyes-Ávila, Alba; Arrebola, Francisco; Romero-González, Roberto

doi:10.1016/j.microc.2023.109020

Cited by 4 publications

(2 citation statements)

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“…To prepare the dose rates, the commercial biopesticides were diluted in water until reaching the desired dose. The theoretical normal dose rate of limonene and trans -cinnamaldehyde, which were previously characterized (Reyes-Ávila et al 2023 ), was 2377 µg/kg and 8477 µg/kg, respectively. Every 2 days, water was added to restore its loss in each Erlenmeyer.…”

Section: Methodsmentioning

confidence: 87%

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Degradation of limonene and trans-cinnamaldehyde in soil, and detection of their metabolites by UHPLC and GC-HRMS

Reyes-Ávila,

Garrido Frenich,

Romero-González

2024

Environ Sci Pollut Res

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Two commercial biopesticides were studied to determine their persistence in two soil types, such as sandy clay loam and clay loam soils. For this purpose, an orange oil–based biopesticide was used, being limonene its main ingredient. The other biopesticide was based on cinnamon extract and trans-cinnamaldehyde as its main component. Degradation of these compounds was monitored, and transformation products or metabolites were detected. Limonene and its metabolites were analyzed by gas chromatography (GC) and trans-cinnamaldehyde by ultra-high-performance liquid chromatography (UHPLC). Both techniques were coupled to a high-resolution mass (HRMS) analyzer, such as quadrupole (Q)-Orbitrap. Limonene and trans-cinnamaldehyde were rapidly degraded as result of first-order kinetics. Possible metabolites such as thymol, cymene, isoterpinolene and cymenene for limonene, and hydroxycinnamic acid for trans-cinnamaldehyde were tentatively identified. Moreover, four other metabolites of trans-cinnamaldehyde, some of them not previously described, were also detected.

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Section: Methodsmentioning

confidence: 87%

“…Limonene and trans -cinnamaldehyde have previously been characterized by GC and UHPLC, respectively (Reyes-Ávila et al 2023 ). Spectral information for both compounds is shown in Table S2 .…”

Section: Resultsmentioning

confidence: 99%