Amino groups modified SBA-15 for dispersive-solid phase extraction in the analysis of micropollutants by QuEchERS approach

Castiglioni, Mario; Onida, Barbara; Rivoira, Luca; Bubba, Massimo Del; Ronchetti, Silvia Maria; Bruzzoniti, Maria Concetta

doi:10.1016/j.chroma.2021.462107

Cited by 15 publications

(6 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Higher amounts of PSA, up to 1 g (data not shown), reduce the extraction recovery due to a possible retention of PAHs by the d-SPE phase, as evidenced elsewhere [25].…”

Section: Resultsmentioning

confidence: 70%

“…Within this work, we hence investigated the effects of different d-SPE adsorbents to maximize the removal of interferents, minimizing the adsorption of target PAHs and PCBs and the effect on analyte recovery. In more detail, PSA was chosen for its high affinity for sugars [25], fatty acids, and pigments including chlorophyll [26]; Z-Sep for its affinity to lipids [27]; C18 for its affinity for fats and waxes [26]; and Florisil for its polar characteristics and affinity with pigments such as carotenoids and xantophylls [28]. Furthermore, the effect of sulfuric acid was also tested to improve the removal of co-extracted organic compounds not efficiently removed by d-SPE phases.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Optimization and Validation of a Method Based on QuEChERS Extraction and Gas Chromatographic-Mass Spectrometric Analysis for the Determination of Polycyclic Aromatic Hydrocarbons and Polychlorinated Biphenyls in Olive Fruits Irrigated with Treated Wastewaters

et al. 2022

Self Cite

View full text Add to dashboard Cite

The wastewater reuse is an important measure to face water shortage, thus improving the resilience of agricultural production chains. However, treated wastewater can contain residual organic micropollutants residues that may result in crop contamination. Among edible crops, olive is the most important agricultural product in the Mediterranean region. Methods to assess the contamination of organic micropollutants such as polycyclic aromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs) in olives are poorly investigated. Given the complexity of olives, this study focused on the development and validation of a method for the simultaneous extraction of PAHs and PCBs from olives, and subsequent analysis by gas chromatography coupled with mass spectrometry detection. Extraction was optimized through a QuEChERS protocol, studying the effect of the extraction solvent (CH2Cl2, cyclohexane, CH3CN) and of the dispersive-solid phase extraction (d-SPE) sorbent (octadecyl silica, Florisil, primary secondary amine, Z-Sep) on the recovery of micropollutants. The best recoveries (94–122%, relative standard deviations below 5%) were obtained using CH3CN/H2O and a double purification step with Z-Sep and Florisil. The method developed for PAHs and PCBs, which showed good intra-day (<2.7%) and inter-day (<2.9%) precision and low matrix effect (|ME| < 14%), was applied to the analysis of olives grown by irrigation with reclaimed wastewaters.

show abstract

“…Higher amounts of PSA, up to 1 g (data not shown), reduce the extraction recovery due to a possible retention of PAHs by the d-SPE phase, as evidenced elsewhere [25].…”

Section: Resultsmentioning

confidence: 70%

Section: Resultsmentioning

confidence: 99%

Optimization and Validation of a Method Based on QuEChERS Extraction and Gas Chromatographic-Mass Spectrometric Analysis for the Determination of Polycyclic Aromatic Hydrocarbons and Polychlorinated Biphenyls in Olive Fruits Irrigated with Treated Wastewaters

et al. 2022

Self Cite

View full text Add to dashboard Cite

show abstract

“…In addition, the asymmetric stretching vibration of SiOSi was found as the source of the signal at 1095 cm −1 . Remarkably, the appearance of a distinctive vibrational peak at 1544 cm −1 in SBA‐15‐NH 2 was indicative of the successful modification of SBA‐15 through the introduction of amino functional groups via APTES 24 . As for the SNAZ and SNAZD, the signals at 1218 and 775 cm −1 were attributed to PO and PC stretching vibrations, respectively 25,26 .…”

Section: Resultsmentioning

confidence: 96%

“…Remarkably, the appearance of a distinctive vibrational peak at 1544 cm À1 in SBA-15-NH 2 was indicative of the successful modification of SBA-15 through the introduction of amino functional groups via APTES. 24 As for the SNAZ and SNAZD, the signals at 1218 and 775 cm À1 were attributed to P O and P C stretching vibrations, respectively. 25,26 This observation suggested the successful interaction between ATMP and the amino functional groups present on both the inner and outer surfaces of SBA-15.…”

Section: Characterizationmentioning

confidence: 92%

Construction of a hybrid flame retardant based on mesoporous silica for enhancing fire safety, smoke suppression, and mechanical properties of epoxy resins

Yue,

Shi,

Zheng

et al. 2024

J of Applied Polymer Sci

View full text Add to dashboard Cite

In order to improve the fire safety of epoxy resins (EPs), the SBA‐15 based hybrid flame retardant (SNAZD) was synthesized via an organic–inorganic hybridization strategy of mesoporous silica SBA‐15. Relying on electrostatic interaction, the zinc amino‐tris‐(methylenephosphonate) (Zn‐ATMP) was successfully introduced into the pore channels of SBA‐15. Then, 9,10‐dihydro‐9‐oxa‐10‐phosphaphenanthrene‐10‐oxide (DOPO) was successfully loaded into the pores of SBA‐15 under vacuum. The results show that the EP composites with the 5%SNAZD sample (sample EP‐5%SNAZD) showed a LOI value of 30.9% and achieved the vertical burning V‐0 rating. In comparison to EP, the peak heat release rate, peak smoke production rate, and production rate of CO of EP‐3%SNAZD were reduced by 32.2%, 31.9%, and 20.0%, respectively. This is due to the presence of Si, P, N, and Zn elements in the SNAZD, which promoted the generation of a high yield of dense char residue and inhibited the release of toxic gasses. And the impact strength and flexural strength of EP‐1%SNAZD were increased by 19.5% and 15.6%, respectively, and the E' of EP‐5%SNAZD increased by 49.1% when compared with the neat EP. This work provides a general strategy for the design of mesoporous hybrid flame retardant and creates additional opportunities for applications of EP.

show abstract

“…The mesoporous material SBA-15 and its derivatives are characterized by high adsorption versatility, strong adsorption stability, and large adsorption capacity. They are widely used to separate and remove organic pollutants and heavy metals in food and environments [ 23 , 24 , 25 ]. In this study, SBA-15-C 18 was prepared by introducing C 18 groups into the active site of SBA-15, which exhibited better adsorption properties for non-polar and weakly polar compounds compared to SBA-15 [ 26 , 27 ].…”

Section: Introductionmentioning

confidence: 99%

Residue Levels and Dietary Intake Risk Assessments of 139 Pesticides in Agricultural Produce Using the m-PFC Method Based on SBA-15-C18 with GC-MS/MS

et al. 2023

View full text Add to dashboard Cite

A survey was designed to investigate the pesticide residues in agricultural produce and to estimate their potential intake risks to inhabitants. A total of 314 samples of nine types of fruits and vegetables were collected from the supermarkets and vegetable markets of Shandong Province (China) from October 2020 to February 2022. An accurate and reliable multi-residue method, based on GC-MS/MS detection, as well as the multiplug filtration cleanup method, based on SBA-15-C18, was prepared by a solution chemical reaction. Additionally, an in situ co-condensation method was established for the quantification of 139 pesticide residues. Residues that contained no pesticides were detected in 66.5% of the 314 samples. Moreover, of the samples, 30.6% were at or below the MRLs, and 2.9% were above the MRLs. Residues of procymidone were found to be the one that most often exceeded the MRLs (1.3% of the samples). Tebuconazole was found most frequently in 22.0% of the samples analyzed. Consumer exposure to the 139 pesticides did not exceed 100% ADI and ARfD. This led to a consideration that these pesticide residues in the nine commodities may not raise the health risk of the consumers in the long and short term. The highest value of chronic dietary intake was obtained from spirodiclofen, which resulted in a 24.1% of ADI. Furthermore, the highest exposure levels in the short term were obtained from the consumption of leeks with procymidone (58.3% ARfD).

show abstract

Amino groups modified SBA-15 for dispersive-solid phase extraction in the analysis of micropollutants by QuEchERS approach

Cited by 15 publications

References 33 publications

Optimization and Validation of a Method Based on QuEChERS Extraction and Gas Chromatographic-Mass Spectrometric Analysis for the Determination of Polycyclic Aromatic Hydrocarbons and Polychlorinated Biphenyls in Olive Fruits Irrigated with Treated Wastewaters

Optimization and Validation of a Method Based on QuEChERS Extraction and Gas Chromatographic-Mass Spectrometric Analysis for the Determination of Polycyclic Aromatic Hydrocarbons and Polychlorinated Biphenyls in Olive Fruits Irrigated with Treated Wastewaters

Construction of a hybrid flame retardant based on mesoporous silica for enhancing fire safety, smoke suppression, and mechanical properties of epoxy resins

Residue Levels and Dietary Intake Risk Assessments of 139 Pesticides in Agricultural Produce Using the m-PFC Method Based on SBA-15-C18 with GC-MS/MS

Contact Info

Product

Resources

About