Development of on-line molecularly imprinted solid phase extraction-liquid chromatography-mass spectrometry for triazine analysis in corn samples

Andrade, Felipe Nascimento; Nazário, Carlos Eduardo Domingues; Santos-Neto, Álvaro José; Lanças, Fernando Mauro

doi:10.1039/c5ay02986d

Cited by 30 publications

(8 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The present method was further compared with other methods (which were applied to analyze cereal samples) reported in the literatures [4,6,29,[33][34][35]. The detailed comparison was summarized in Table 1.…”

Section: Comparison Of Methodsmentioning

confidence: 99%

One‐step synthesized magnetic MIL‐101(Cr) for effective extraction of triazine herbicides from rice prior to determination by liquid chromatography‐tandem mass spectrometry

Jiang

Piao

Qin

et al. 2019

J of Separation Science

View full text Add to dashboard Cite

The magnetic metal‐organic framework MIL‐101(Cr) material‐based solid‐phase extraction method coupled with high‐performance liquid chromatography and tandem mass spectrometry was applied to extract seven triazine herbicides in rices. Fe3O4/MIL‐101(Cr) was synthesized using reduction‐precipitation method, in which steps including pre‐synthesis and modification of Fe3O4 nanoparticles were by‐passed. Various parameters including extraction solvent type and volume, ultrasonic extraction time, amount of Fe3O4/MIL‐101(Cr) microspheres, adsorption time, desorption volume and time were investigated. Under optimal conditions, the proposed method had the limit of detection (S/N = 3) and the limit of quantification (S/N = 10) of 1.08–18.10 and 3.60–60.20 pg/g, respectively. Relative standard deviations calculated for all herbicides with concentrations of 2 and 20 ng/g were in the range of 0.5 to 13% (n = 3). In addition, at the two above‐mentioned concentrations, the method achieved relative recoveries percentages of 79.3 to 116.7% when applied to determine the triazine herbicides in real samples spiked. This rapid, green, non‐polluting, pre‐concentrated extraction method was successfully developed and applied to analyze herbicides in rice samples.

show abstract

Section: Comparison Of Methodsmentioning

confidence: 99%

One‐step synthesized magnetic MIL‐101(Cr) for effective extraction of triazine herbicides from rice prior to determination by liquid chromatography‐tandem mass spectrometry

Jiang

Piao

Qin

et al. 2019

J of Separation Science

View full text Add to dashboard Cite

show abstract

“…Andrade et al. developed a highly selective extraction phase for analysis of triazine herbicides in five kinds of corn samples. The MIPs were synthesized by precipitation polymerization using atrazine as template.…”

Section: Applications Of On‐line and Off‐line Sample Preparation Techmentioning

confidence: 99%

Recent trends in sorption‐based sample preparation and liquid chromatography techniques for food analysis

2018

Self Cite

View full text Add to dashboard Cite

The accelerated rising of the world's population increased the consumption of food, thus demanding more rigors in the control of residue and contaminants in food-based products marketed for human consumption. In view of the complexity of most food matrices, including fruits, vegetables, different types of meat, beverages, among others, a sample preparation step is important to provide more reliable results when combined with HPLC separations. An adequate sample preparation step before the chromatographic analysis is mandatory in obtaining higher precision and accuracy in order to improve the extraction of the target analytes, one of the priorities in analytical chemistry. The recent discovery of new materials such as ionic liquids, graphene-derived materials, molecularly imprinted polymers, restricted access media, magnetic nanoparticles, and carbonaceous nanomaterials, provided high sensitivity and selectivity results in an extensive variety of applications. These materials, as well as their several possible combinations, have been demonstrated to be highly appropriate for the extraction of different analytes in complex samples such as food products. The main characteristics and application of these new materials in food analysis will be presented and discussed in this paper. Another topic discussed in this review covers the main advantages and limitations of sample preparation microtechniques, as well as their off-line and on-line combination with HPLC for food analysis.

show abstract

“…Triazine herbicides were successfully analyzed by SPE–LC–ESI‐TOF in corn sample by Andrade et al. . As the first dimension a LC column was packed with MIP, a very selective material, while a second dimension employed a standard analytical C 18 column (150 mm × 2.1 mm, 5.0 μm).…”

Section: Applications Of the On‐line Approach To The Analysis Of Compmentioning

confidence: 99%

“…In addition to environmental and bioanalysis described before, the on-line coupling of sample preparation to chro-matography has found many applications in food analysis. Triazine herbicides were successfully analyzed by SPE-LC-ESI-TOF in corn sample by Andrade et al [93]. As the first dimension a LC column was packed with MIP, a very selective material, while a second dimension employed a standard analytical C 18 column (150 mm × 2.1 mm, 5.0 m).…”

Section: Applications Utilizing the Switching Valve Approachmentioning

confidence: 99%

On‐line approaches for the determination of residues and contaminants in complex samples

Fumes

Andrade

Franco

et al. 2016

J of Separation Science

Self Cite

View full text Add to dashboard Cite

The determination of residues and contaminants in complex matrices such as in the case of food, environmental, and biological samples requires a combination of several steps to succeed in the aimed goal. At least three independent steps are integrated to provide the best available situation to deal with such matrices: (1) a sample preparation technique is employed to isolate the target compounds from the rest of the matrix; (2) a chromatographic (second) step further "purifies" the isolated compounds from the co-extracted matrix interferences; (3) a spectroscopy-based device acts as chromatographic detector (ideally containing a tandem high-resolution mass analyzer) for the qualitative and quantitative analysis. These techniques can be operated in different modes including the off-line and the on-line modes. The present report focus the on-line coupling techniques aiming the determination of analytes present in complex matrices. The fundamentals of these approaches as well as the most common set ups are presented and discussed, as well as a review on the recent applications of these two approaches to the fields of bioanalytical, environmental, and food analysis are critically discussed.

show abstract

Development of on-line molecularly imprinted solid phase extraction-liquid chromatography-mass spectrometry for triazine analysis in corn samples

Abstract: A highly selective method for the analysis of triazine herbicides in corn samples based on molecularly imprinted solid phase extraction (MISPE) has been developed.

Cited by 30 publications

References 40 publications

One‐step synthesized magnetic MIL‐101(Cr) for effective extraction of triazine herbicides from rice prior to determination by liquid chromatography‐tandem mass spectrometry

One‐step synthesized magnetic MIL‐101(Cr) for effective extraction of triazine herbicides from rice prior to determination by liquid chromatography‐tandem mass spectrometry

Recent trends in sorption‐based sample preparation and liquid chromatography techniques for food analysis

On‐line approaches for the determination of residues and contaminants in complex samples

Contact Info

Product

Resources

About