Koall, M. and Boehm, D. and Herl, T. and Matysik, F.-M. (2023) Sensitive and selective determination of the neonicotinoid nitenpyram utilizing capillary electrophoresis hyphenated to amperometric detection/mass spectrometry. ELECTROANALYSIS, 35 (12): e202300238. ISSN 1040-0397, 1521-4109
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In this work, we present the sensitive and selective determination of the widely used insecticide nitenpyram (NIT), utilizing a newly developed dual detection concept (DDC) for capillary electrophoresis (CE). This DDC was realized by combining two complementary detection principles, namely amperometric detection (AD) and mass spectrometry (MS), using a commercially available flow splitter (CE-AD/MS). The novel DDC was implemented utilizing a newly developed, modular, and user-friendly CE system with a unique capillary positioning mechanism to improve the workflow. A detailed description of the CE device can be found in the Supporting Information.We investigated the analytical performance of the novel DDC (CE-AD/MS) in the context of NIT determination.The NIT LOD, obtained by AD, was up to a factor of 14 lower than in case of MS in the context of CE-AD/MS. The qualitative and quantitative determination of NIT in pharmaceutical samples is presented as a possible application for the novel DDC. Additionally, the oxidation process during AD was examined by hyphenation of electrochemistry to CE-MS. image
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | LEARNING PERFORMANCES; TOXICITY; dual detection; electrochemistry; electrophoresis; mass spectrometry; nitenpyram |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Analytische Chemie, Chemo- und Biosensorik > Instrumentelle Analytik (Prof. Frank-Michael Matysik) |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 01 Mar 2024 07:28 |
| Last Modified: | 01 Mar 2024 07:28 |
| URI: | https://pred.uni-regensburg.de/id/eprint/59243 |
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