Core shell stationary phases for a novel separation of triglycerides in plant oils by high performance liquid chromatography with electrospray-quadrupole-time of flight mass spectrometer

Nasa, Jacopo La; Ghelardi, Elisa; Degano, Ilaria; Modugno, Francesca; Colombini, Maria Perla

doi:10.1016/j.chroma.2013.08.015

Cited by 64 publications

(52 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…While for traditional oil paints, these ratios provide important information about the type of drying oil (based on P/S ratios), drying, ageing and oxidation rate (based on A/P and O/S ratios) [20,32,33], recent studies outlined that these ratios are not completely reliable for modern and contemporary oil paints [7,26,34].…”

Section: Binding Medium and Organic Additivesmentioning

confidence: 99%

Study of the chemical composition and the mechanical behaviour of 20th century commercial artists' oil paints containing manganese-based pigments

Fuster-López

Izzo

Piovesan

et al. 2016

Microchemical Journal

View full text Add to dashboard Cite

The present study deals with 20th century manufactured artists' oil paints containing raw and burnt umber pigments, this is, natural earth pigments resulting from the combination of iron and manganese oxides. Manganese, in particular, is known to be a primary drier and to have a siccative effect on oil paint films. This research aims to show the diversity of formulations behind apparently same commercial names as well as to understand how the content of manganese, the presence of modern lipidic media and the hydrolysis mechanisms can promote significant differences in the expected mechanical properties of oil paint films, thus conditioning their long-term performance. Several manufactured artists' oil paint films containing manganese were selected. Dried films from raw and burnt umber oil paints by Winsor&Newton® (UK), Grumbacher® (USA), Gamblin® (USA) and Speedball® (USA) were studied and information about their chemical composition and mechanical behaviour is here presented. In addition to the identification and the study of the inorganic and organic components present in each formulation through LM, SEM-EDX, FTIR-ATR, XRD, GC-MS analysis, tensile tests were run and stress-strain curves were obtained. Together with evident hue differences, the obtained results showed significant differences in the chemical composition and the mechanical behaviour of the oil paint films.

show abstract

Section: Binding Medium and Organic Additivesmentioning

confidence: 99%

Study of the chemical composition and the mechanical behaviour of 20th century commercial artists' oil paints containing manganese-based pigments

Fuster-López

Izzo

Piovesan

et al. 2016

Microchemical Journal

View full text Add to dashboard Cite

show abstract

“…High‐resolution MS and MS/MS spectra were acquired in positive mode in the range m/z 100–1700. The tandem mass spectrometry experimental setup was adapted from previous papers . For the MS/MS experiments, voltages in the range 30–100 V were used to obtain information on the collision‐induced dissociation (CID) fragmentation pathways of selected [M+Na] + precursor ions.…”

Section: Methodsmentioning

confidence: 99%

“…Each method is characterized by a sample pretreatment that hydrolyzes the ester bonds of the lipid fraction of the resin, followed by a derivatization step prior to the GC/MS analysis.Electrospray ionization mass spectrometry (ESI‐MS): an analytical approach that has been recently applied to gain detailed information on lipid composition by determining the profile of the glycerides and derived compounds. Triacylglycerols (TAGs) are generally profiled by high‐performance liquid chromatography coupled with mass spectrometry (HPLC/MS) [12‐19] . This approach, combined with GC/MS and flow injection analysis (FIA/ESI‐MS), has recently been successfully used for the characterization of alkyd paint binders …”

mentioning

confidence: 99%

Industrial alkyd resins: characterization of pentaerythritol and phthalic acid esters using integrated mass spectrometry

Nasa

Degano

Modugno

et al. 2014

Rapid Commun. Mass Spectrom.

Self Cite

View full text Add to dashboard Cite

show abstract

“…MS is a popular method to identify the structures of analytes using a combination of exact masses and the identification of product ions. [8][9][10] Studies have shown that the commercial atmospheric ionization (API) interfaces used for LC/MS are suitable for SFC/MS with only slight modification. 11,12 Because the mobile phase of SFC is mainly supercritical carbon dioxide (which is a type of aprotic solvent), an additional makeup solvent is needed to enter the mass spectrometer along with the effluents to enhance the API efficiency.…”

Section: Accordingly Sfc Facilitates High-throughput and High-resolumentioning

confidence: 99%

“…MS is a popular method to identify the structures of analytes using a combination of exact masses and the identification of product ions . Studies have shown that the commercial atmospheric ionization (API) interfaces used for LC/MS are suitable for SFC/MS with only slight modification .…”

Section: Introductionmentioning

confidence: 99%

Ultra‐high performance supercritical fluid chromatography combined with quadrupole time‐of‐flight mass spectrometry for the characterization of pentaerythritol fatty acid esters

Tang

Pan

Sun

et al. 2020

Rapid Comm Mass Spectrometry

View full text Add to dashboard Cite

Rationale Pentaerythritol fatty acid esters are an excellent lubricant oil additive, due to their good biodegradability, thermal ability, anti‐wear, and friction properties. However, to meet the application requirements, fatty acids with different alkyl chain lengths are reacted with pentaerythritol, resulting in complex ester compositions. To reveal the relation between the functionalities and the composition of esters, it is important to develop a method for their analysis. Methods We developed a method using ultra‐high‐performance supercritical fluid chromatography combined with quadrupole time‐of‐flight mass spectrometry (UHPSFC/QTOF‐MS) to separate and characterize pentaerythritol fatty acid esters. This method has the advantages such as short analysis time and high separation efficiency for such weakly polar compounds; high‐resolution mass spectrometry (HRMS) provides exact mass information, enabling the identification of the structure of the pentaerythritol fatty acid esters. Results Based on the exact masses and characteristic ions, the pentaerythritol fatty acid esters and their main fragmentation pathways were identified; the fatty acid composition was also deduced from characteristic product ions. A dihydrogen rearrangement reaction caused the neutral loss of fatty acid fragment; [M + Na‐FA]+ product ions (a stable six‐member ring structure) were produced due to the absence of a γ hydrogen in pentaerythritol fatty acid esters. Conclusions A UHPSFC/QTOF‐MS method was successfully employed for the separation of pentaerythritol fatty acid esters. Exact masses and product ion information were determined using HRMS. The composition of the fatty acids was effectively deduced by characteristic ions and their relative abundances. This method is an effective means for the quality control and process optimization of this type of product, serving as a positive reference for further study on pentaerythritol fatty acid esters.

show abstract

Core shell stationary phases for a novel separation of triglycerides in plant oils by high performance liquid chromatography with electrospray-quadrupole-time of flight mass spectrometer

Cited by 64 publications

References 28 publications

Study of the chemical composition and the mechanical behaviour of 20th century commercial artists' oil paints containing manganese-based pigments

Study of the chemical composition and the mechanical behaviour of 20th century commercial artists' oil paints containing manganese-based pigments

Industrial alkyd resins: characterization of pentaerythritol and phthalic acid esters using integrated mass spectrometry

Ultra‐high performance supercritical fluid chromatography combined with quadrupole time‐of‐flight mass spectrometry for the characterization of pentaerythritol fatty acid esters

Contact Info

Product

Resources

About