Blends of Soybean Biodiesel with Petrodiesel: Direct Quantitation via Mass Spectrometry

Abdelnur, Patrícia Verardi; Saraiva, Sérgio A.; Catharino, Rodrigo Ramos; Coelho, Mirela; Schwab, Nicolas V.; Garcia, Camila Martins; Schuchardt, Ulf; Souza, Vanderléa de; Eberlin, Marcos N.

doi:10.5935/0103-5053.20130120

Cited by 5 publications

(6 citation statements)

References 1 publication

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“…EASI has been successfully applied to quality control and forensics [7,17,20,21]. It also has been also applied to check for the purity of biodiesel [22,23].…”

Section: Introductionmentioning

confidence: 99%

Comparisons of ambient spray ionization imaging methods

Hamid

Lostun

Cabral

et al. 2015

International Journal of Mass Spectrometry

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“…EASI has been successfully applied to quality control and forensics [7,17,20,21]. It also has been also applied to check for the purity of biodiesel [22,23].…”

Section: Introductionmentioning

confidence: 99%

Comparisons of ambient spray ionization imaging methods

Hamid

Lostun

Cabral

et al. 2015

International Journal of Mass Spectrometry

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“…On the other hand, most of the techniques developed to quantify the biodiesel content of B-D blends do not take into account the presence of glycerides (MAG, DAG, TAG). [14][15][16][17]20,21 Due to the importance of the presence of these contaminants in the fuel, there have been several reports of studies related to techniques to quantify specifically the adulterations with vegetable oils in the B-D blends, such as NIR, 22−25 MIR, 26,27 FTIR, 28 FT-Raman, 29 UV−vis, 30,31 spectrofluorimetric, 32,33 Electrospray Ionization Mass Spectrometry (EIS-MS), 34 and Easy Ambient Sonic-Spray Ionization Mass Spectrometry (EASI-MS). 35 All of these works used different techniques to analyze vegetable oil−biodiesel−diesel blends (O-B-D).…”

Section: Introductionmentioning

confidence: 99%

“…In most cases, the vegetable oil concentrations are relatively high. In other words, the vegetable oil content used in the B-D blends corresponded to partial or total substitution of the biodiesel; therefore, the vegetable oil concentration related to the biodiesel concentration was in the range 10–100%, and even more. − The objective of these techniques is to detect adulteration of B-D blends with vegetable oil, but they cannot detect the level of triacylglycerides that could be present in the blend if a good quality biodiesel is used in its preparation. The biodiesel used in the blends can contain up to 0.2 wt % of triacylglycerides .…”

Section: Introductionmentioning

confidence: 99%

Free and Total Glycerin Analyses in Biodiesel–Diesel Blends

2018

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An analytical method for the analysis of free glycerin and total glycerin in biodiesel/diesel blends is presented. The total glycerin is related to the amount of nonconverted glycerides present in the biodiesel, while the free glycerin is related to its purification steps. The method is based on the conversion of mono-, di-, and triacylglycerides in methyl esters and glycerin, and then the glycerin is extracted and quantified with a standard chemical procedure. It is possible to measure the total and free glycerin with very high repeatability and reproducibility. The limits of detection and quantification for the total glycerin analysis are 3.1 × 10–5 and 9.1 × 10–5 wt %, respectively, making it possible to determine this parameter in biodiesel/diesel blends containing a low amount of biodiesel of good quality.

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“…Since Several methods have been reported for quantitative or semi-quantitative determination of FAAEs in biodiesel and for chemometric classification of biodiesel feedstock. Those include optical spectroscopic methods [3][4][5], NMR [6], various chromatographic methods, commonly with mass spectrometry (MS) detectors [7,8], MS alone [9], and MS with specialized ionization techniques [10]. A significant challenge for analysis of biodiesel/petrodiesel blends for FAAEs using gas chromatography (GC), or GC-MS, is the relatively abundant and chemically complex matrix of hydrocarbons.…”

Section: Introductionmentioning

confidence: 99%

Classification of biodiesel and fuel blends using gas chromatography – differential mobility spectrometry with cluster analysis and isolation of C18:3 me by dual ion filtering

Pasupuleti

Eiceman

Pierce

2016

Talanta

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Fatty acid alkyl esters (FAAEs) were determined at 10-100mg/L in biodiesel and blends with petrodiesel without sample pre-treatment using gas chromatography with a tandem differential mobility detector. Selectivity was provided through chromatographic separations and atmospheric pressure chemical ionization reactions in the detector with mobility characterization of gas ions. Limits of detection were ~0.5ng with an average of 2.98% RSD for peak area precision, ≤1.3% RSD for retention time precision, and ≤9.2% RSD for compensation voltage precision. Biodiesel blends were classified using principal component analysis (PCA) and hierarchical cluster analysis (HCA). Unsupervised cluster analysis captured 52.72% of variance in a single PC while supervised analysis captured 71.64% of variance using Fisher ratio feature selection. Test set predictions showed successful clustering according to source or feedstock when regressed onto the training set model. Detection of the regulated substance methyl linolenate (C18:3 me) was achieved in 6-10s with a 1m long capillary column using dual ion filtering in the tandem differential mobility detector.

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Blends of Soybean Biodiesel with Petrodiesel: Direct Quantitation via Mass Spectrometry

Cited by 5 publications

References 1 publication

Comparisons of ambient spray ionization imaging methods

Comparisons of ambient spray ionization imaging methods

Free and Total Glycerin Analyses in Biodiesel–Diesel Blends

Classification of biodiesel and fuel blends using gas chromatography – differential mobility spectrometry with cluster analysis and isolation of C18:3 me by dual ion filtering

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