PMID- 30583433
OWN - NLM
STAT- MEDLINE
DCOM- 20190213
LR  - 20190215
IS  - 1873-7072 (Electronic)
IS  - 0308-8146 (Linking)
VI  - 278
DP  - 2019 Apr 25
TI  - High-performance organized media-enhanced spectrofluorimetric determination of 
      pirimiphos-methyl in maize.
PG  - 711-719
LID - S0308-8146(18)32036-3 [pii]
LID - 10.1016/j.foodchem.2018.11.090 [doi]
AB  - A novel method for the determination of pirimiphos-methyl (PMM) in maize grains 
      by fluorescence spectroscopy and three-way calibration was developed. The 
      formation of supramolecular complexes and their effect on the luminescence 
      properties of PMM were studied. A solvent extraction step followed by solid phase 
      extraction for sample clean-up was optimized. A chemometric approach consisting 
      in PARAFAC as second-order data processing tool and piecewise direct 
      standardization (PDS) for reducing the complexity of the calibration process was 
      developed to overcome the matrix effect. This strategy allowed dealing with the 
      matrix effect while reducing the number of samples to be processed and, 
      consequently, the solvent consumption and the total analysis time. Finally, 
      three-way calibration was applied to predict the PMM concentration in unknown 
      samples. The mean recovery was 115% and the limits of detection and quantitation 
      were in the order of the parts per trillion, i.e. 6 and 20 ng g(-1), 
      respectively.
CI  - Copyright (c) 2018 Elsevier Ltd. All rights reserved.
FAU - Montemurro, Milagros
AU  - Montemurro M
AD  - Laboratorio de Desarrollo Analitico y Quimiometria (LADAQ), Facultad de 
      Bioquimica y Ciencias Biologicas, Universidad Nacional del Litoral, Ciudad 
      Universitaria, Santa Fe 3000, Argentina; Consejo Nacional de Investigaciones 
      Cientificas y Tecnicas (CONICET), Godoy Cruz 2290, CABA (C1425FQB), Argentina.
FAU - Brasca, Romina
AU  - Brasca R
AD  - Laboratorio de Desarrollo Analitico y Quimiometria (LADAQ), Facultad de 
      Bioquimica y Ciencias Biologicas, Universidad Nacional del Litoral, Ciudad 
      Universitaria, Santa Fe 3000, Argentina; Consejo Nacional de Investigaciones 
      Cientificas y Tecnicas (CONICET), Godoy Cruz 2290, CABA (C1425FQB), Argentina; 
      Programa de Investigacion y Analisis de Residuos y Contaminantes Quimicos 
      (PRINARC), Facultad de Ingenieria Quimica, Universidad Nacional del Litoral, 
      Santiago del Estero 2654, Santa Fe 3000, Argentina.
FAU - Culzoni, Maria J
AU  - Culzoni MJ
AD  - Laboratorio de Desarrollo Analitico y Quimiometria (LADAQ), Facultad de 
      Bioquimica y Ciencias Biologicas, Universidad Nacional del Litoral, Ciudad 
      Universitaria, Santa Fe 3000, Argentina; Consejo Nacional de Investigaciones 
      Cientificas y Tecnicas (CONICET), Godoy Cruz 2290, CABA (C1425FQB), Argentina. 
      Electronic address: mculzoni@fbcb.unl.edu.ar.
FAU - Goicoechea, Hector C
AU  - Goicoechea HC
AD  - Laboratorio de Desarrollo Analitico y Quimiometria (LADAQ), Facultad de 
      Bioquimica y Ciencias Biologicas, Universidad Nacional del Litoral, Ciudad 
      Universitaria, Santa Fe 3000, Argentina; Consejo Nacional de Investigaciones 
      Cientificas y Tecnicas (CONICET), Godoy Cruz 2290, CABA (C1425FQB), Argentina. 
      Electronic address: hgoico@fbcb.unl.edu.ar.
LA  - eng
PT  - Journal Article
DEP - 20181120
PL  - England
TA  - Food Chem
JT  - Food chemistry
JID - 7702639
RN  - 0 (Cyclodextrins)
RN  - 0 (Organothiophosphorus Compounds)
RN  - 0 (Surface-Active Agents)
RN  - 29232-93-7 (pirimiphos methyl)
SB  - IM
MH  - Calibration
MH  - Cyclodextrins/chemistry
MH  - Limit of Detection
MH  - Organothiophosphorus Compounds/*analysis/isolation & purification/standards
MH  - Solid Phase Extraction
MH  - Spectrometry, Fluorescence/*methods/standards
MH  - Surface-Active Agents/chemistry
MH  - Zea mays/*chemistry/metabolism
OTO - NOTNLM
OT  - Fluorescence spectroscopy
OT  - Maize
OT  - Organized media
OT  - Pirimiphos-methyl
EDAT- 2018/12/26 06:00
MHDA- 2019/02/14 06:00
CRDT- 2018/12/26 06:00
PHST- 2018/06/18 00:00 [received]
PHST- 2018/09/19 00:00 [revised]
PHST- 2018/11/19 00:00 [accepted]
PHST- 2018/12/26 06:00 [entrez]
PHST- 2018/12/26 06:00 [pubmed]
PHST- 2019/02/14 06:00 [medline]
AID - S0308-8146(18)32036-3 [pii]
AID - 10.1016/j.foodchem.2018.11.090 [doi]
PST - ppublish
SO  - Food Chem. 2019 Apr 25;278:711-719. doi: 10.1016/j.foodchem.2018.11.090. Epub 
      2018 Nov 20.