Excitation-emission-kinetic fluorescence coupled with third-order calibration for quantifying carbaryl and investigating the hydrolysis in effluent water

Zhu, Shuijin; Xia, A-Lin; Nie, Jinfang; Bian, Ying-Chao; Cai, Chen-Bo; Yu, Ru‐Qin

doi:10.1016/j.talanta.2008.09.052

Cited by 35 publications

(23 citation statements)

References 24 publications

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“…Bookmark not defined., 26,27,28]. Due to carbamates exhibit native fluorescence, carbaryl and its degradation product 1-naphthol are determined in water in [Error!…”

Section: /5mentioning

confidence: 99%

Identification and quantification of carbamate pesticides in dried lime tree flowers by means of excitation-emission molecular fluorescence and parallel factor analysis when quenching effect exists

Rubio

Ortiz

Sarabia

2014

Analytica Chimica Acta

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Please cite this article as: L.Rubio, M.C.Ortiz, L.A.Sarabia, Identification and quantification of carbamate pesticides in dried lime tree flowers by means of excitationemission molecular fluorescence and parallel factor analysis when quenching effect exists, Analytica Chimica Acta http://dx.doi.org/10. 1016/j.aca.2014.02.008 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. HighlightsHIGHLIGHTS ► Determination of carbamate pesticides in dried lime tree flowers by EEM and PARAFAC ► Quenching effect and overlapping spectra are solved by three way techniques ► The second order property of PARAFAC decomposition is useful to solve problems in EEM ► Using PARAFAC to select the adequate dilution that minimizes the quenching effect ► A procedure to choose a D-optimal design for a multi-analyte standard addition method Abstract A non-separative, fast and inexpensive spectrofluorimetric method based on the second order calibration of excitation-emission fluorescence matrices (EEMs) was proposed for the determination of carbaryl, carbendazim and 1-naphthol in dried lime tree flowers. The trilinearity property of three-way data was used to handle the intrinsic fluorescence of lime flowers and the difference in the fluorescence intensity of each analyte. It also made possible to identify unequivocally each analyte. Trilinearity of the data tensor guarantees the uniqueness of the solution obtained through parallel factor analysis (PARAFAC), so the factors of the decomposition match up with the analytes. In addition, an experimental procedure was proposed to identify, with three-way data, the quenching effect produced by Page 2 of 40 A c c e p t e d M a n u s c r i p t 2/4 the fluorophores of the lime flowers. This procedure also enabled the selection of the adequate dilution of the lime flowers extract to minimize the quenching effect so the three analytes can be quantified. Finally, the analytes were determined using the standard addition method for a calibration whose standards were chosen with a D-optimal design.The three analytes were unequivocally identified by the correlation between the pure spectra and the PARAFAC excitation and emission spectral loadings. The trueness was established by the accuracy line "calculated concentration versus added concentration" in all cases.

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“…Bookmark not defined., 26,27,28]. Due to carbamates exhibit native fluorescence, carbaryl and its degradation product 1-naphthol are determined in water in [Error!…”

Section: /5mentioning

confidence: 99%

Identification and quantification of carbamate pesticides in dried lime tree flowers by means of excitation-emission molecular fluorescence and parallel factor analysis when quenching effect exists

Rubio

Ortiz

Sarabia

2014

Analytica Chimica Acta

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“…(12) and (15) can be tested by a complementary methodology, based on Monte Carlo noise addition, as has been discussed previously [26]. In this latter approach, an operational definition of the sensitivity is employed:…”

Section: Figures Of Meritmentioning

confidence: 99%

“…In any case, only a few reports exist on the processing of kinetic-EEM data aimed at the determination of one or several analytes embedded in a complex background. Pertinent examples include the oxidation of catecholamines [6], mixtures of leucovorin or folic acid with methotrexate [7][8][9][10], the alkaline hydrolysis of procaine [11] and carbaryl [12], the derivatization of malondialdehyde [13], and the photochemical degradation of several pesticides [14], polycyclic aromatic hydrocarbons [15], and folic acid and its two main metabolites [16].…”

Section: Introductionmentioning

confidence: 99%

“…Quadrilinear models such as parallel factor analysis (PARAFAC) [5,6] and alternating quadrilinear decomposition [12] are appealing because they provide useful physicochemical information, in terms of kinetic and spectral profiles for the different sample components. However, kinetic systems pose challenges to these latter algorithms due to: (1) strong linear dependencies among component profiles, typical of kinetic systems, and (2) multi-linearity losses due to the fact that the reaction may progress during the time required for registering a complete EEM.…”

Section: Introductionmentioning

confidence: 99%

“…However, carbaryl is significantly less fluorescent than 1-naphthol, and thus its conversion to 1-naphthol leads to a considerable sensitivity improvement. On the other hand, carbaryl alone has been quantified by kinetic-EEM four-way data using a quadrilinear decomposition algorithm [12]. However, this single-analyte system does not present the complex challenges of the one herein reported, where one analyte (1-naphthol) is also the reaction product of the second analyte (carbaryl), introducing strong dependencies in the analyte profiles.…”

Section: Introductionmentioning

confidence: 99%

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Four-way kinetic-excitation-emission fluorescence data processed by multi-way algorithms. Determination of carbaryl and 1-naphthol in water samples in the presence of fluorescent interferents

Maggio

Damiani

Olivieri

2010

Analytica Chimica Acta

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A new third‐order calibration method with application for analysis of four‐way data arrays

et al. 2011

Journal of Chemometrics

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A novel third-order calibration algorithm, alternating weighted residue constraint quadrilinear decomposition (AWRCQLD) based on pseudo-fully stretched matrix forms of quadrilinear model, was developed for the quantitative analysis of four-way data arrays. The AWRCQLD algorithm is based on the new scheme that introduces four unique constraint parts to improve the quality of four-way PARAFAC algorithm. The tested results demonstrated that the AWRCQLD algorithm has the advantage of faster convergence rate and being insensitive to the excess component number adopted in the model compared with four-way PARAFAC. Moreover, simulated data and real experimental data were analyzed to explore the third-order advantage over the second-order counterpart. The results showed that third-order calibration methods possess third-order advantages which allow more inherent information to be obtained from four-way data, so it can improve the resolving and quantitative capability in contrast with second-order calibration especially in high collinear systems.

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Excitation-emission-kinetic fluorescence coupled with third-order calibration for quantifying carbaryl and investigating the hydrolysis in effluent water

Cited by 35 publications

References 24 publications

Identification and quantification of carbamate pesticides in dried lime tree flowers by means of excitation-emission molecular fluorescence and parallel factor analysis when quenching effect exists

Identification and quantification of carbamate pesticides in dried lime tree flowers by means of excitation-emission molecular fluorescence and parallel factor analysis when quenching effect exists

Four-way kinetic-excitation-emission fluorescence data processed by multi-way algorithms. Determination of carbaryl and 1-naphthol in water samples in the presence of fluorescent interferents

A new third‐order calibration method with application for analysis of four‐way data arrays

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