Issue 14, 2012

A quantitative solid-state Raman spectroscopic method for control of fungicides

Abstract

A new analytical procedure using solid-state Raman spectroscopy within the THz-region for the quantitative determination of mixtures of different conformations of trifloxystrobin (EE, EZ, ZE and ZZ), tebuconazole (1), and propiconazole (2) as an effective method for the fungicide product quality monitoring programmes and control has been developed and validated. The obtained quantities were controlled independently by the validated hybrid HPLC electrospray ionization (ESI) tandem mass spectrometric (MS) and matrix-assisted laser desorption/ionization (MALDI) MS methods in the condensed phase. The quantitative dependences were obtained on the twenty binary mixtures of the analytes and were further tested on the three trade fungicide products, containing mixtures of trifloxystrobintebuconazole and trifloxystrobinpropiconazole, as an emissive concentrate or water soluble granules of the active ingredients. The present methods provided sufficient sensitivity as reflected by the metrologic quantities, evaluating the concentration limit of detection (LOD) and quantification (LOQ), linear limit (LL), measurement accuracy and precision, true quantity value, trueness of measurement and more.

Graphical abstract: A quantitative solid-state Raman spectroscopic method for control of fungicides

Supplementary files

Additions and corrections

Article information

Article type
Paper
Submitted
07 Feb 2012
Accepted
23 Apr 2012
First published
24 Apr 2012

Analyst, 2012,137, 3355-3364

A quantitative solid-state Raman spectroscopic method for control of fungicides

B. Ivanova and M. Spiteller, Analyst, 2012, 137, 3355 DOI: 10.1039/C2AN35174A

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