Green approaches to determine metals in lubricating oils by electrothermal atomic absorption spectrometry (ETAAS)

Carballo, Silvia; Terán, Julio E.; Carlosena, A.; Andrade, Javier; Prada, D.

doi:10.1016/j.microc.2013.01.002

Cited by 25 publications

(28 citation statements)

References 39 publications

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“…The magnesium values were lower than those reported by Paradelo et al, 21 but higher than the literature values by Zmozinski et al 17 The chromium and nickel contents were in agreement with those reported in the literature. 13,16,20,23 The copper levels were higher than those found by Yawar, 16 but lower than those reported by Paradelo et al and Caldas et al 21,27 Our lead levels were lower than those found in the literature, 13,21,22 indicating less wearing in engines.…”

Section: Validation and Application Of The Proposed Methodologymentioning

confidence: 57%

Extraction induced by emulsion breaking as a tool for simultaneous multi-element determination in used lubricating oils by ICP-MS

Zhao

Zhou

et al. 2015

Anal. Methods

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This paper reports, for the first time, rapid simultaneous multi-element determination of Mg, Cr, Ni, Cu and Pb in used lubricating oils after their extraction/preconcentration from samples using the novel extraction induced by emulsion breaking. The quantification of the metals of interest in the extracts was performed by ICP-MS using rhodium as an internal standard. First, in order to make it possible to prepare the emulsion, 4 mL of each oil sample was mixed with 1 mL of toluene. Then the diluted oil sample was emulsified with 1 mL of Triton X-114 acid solution. Once the extraction of the metals was completed, the emulsion was broken by centrifugation for 10 min at 6000 rpm. After that, the lower aqueous phase, containing the analytes that were extracted from oil, was collected for the determination by ICP-MS. Several parameters affecting the extraction efficiency of the procedure were investigated including the nature and concentration of the solvent used for sample dilution, the type and concentration of the surfactant, the concentration of HNO 3 , and the other operational conditions (extraction time, collection time and centrifugal speed). The limits of detection for Mg, Cr, Ni, Cu and Pb were 0.126, 0.058, 0.028, 0.078 and 0.009 mg L À1 , respectively. The accuracy of the method was checked by application of a recovery test, by an analysis of standard reference materials (SRM 1084a and 1085b) and by comparison with the microwave digestion method.

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Section: Validation and Application Of The Proposed Methodologymentioning

confidence: 57%

Extraction induced by emulsion breaking as a tool for simultaneous multi-element determination in used lubricating oils by ICP-MS

Zhao

Zhou

et al. 2015

Anal. Methods

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“…The majority of analytical methods of designating heavy metals in lubricating oils that are described in literature are based on atomic spectrometry techniques such as: [12][13][14][15]. However, the methods require special sample preparation, which are usually laborious [15].…”

Section: Resultsmentioning

confidence: 99%

“…Less often it can be used for assessment of wasted oil environment influence [13]. Therefore, accessible literature concerns mostly such elements as Zn, Fe, Cu, and Pb.…”

Section: F-aas Et-aas Dc-oes Icp-oes Icp-ms and Afsmentioning

confidence: 99%

Designation of Chosen Heavy Metals in Used Engine Oils Using the XRF Method

Zając¹,

Szyszlak-Bargłowicz²,

Słowik³

et al. 2015

Pol. J. Environ. Stud.

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Taking into consideration the fact that used oils are considered hazardous and extremely toxic, their subsequent use creates a real threat to the environment. The only effective measure for protecting the natural environment from used oil contamination is collection and controlled utilization. Only appropriate used oil management can guarantee minimal environmental contamination and prevent its irreversible degradation.The aim of our study was to determine the content of select heavy metal elements in used engine oils originating from agricultural tractors and agricultural machines of varying mileage. The tests were carried out by using the HD XRF method. The researched samples showed a high content of zinc remaining at 726-1,389 mg·kg , and Pb 0.9-13.71 mg·kg -1 . Mercury and cadmium were not found in the tested oils.

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“…It was shown that such a methodology yields powerful quantication models and requires less staff dedication, shorter turnaround times and lower cost than traditional approaches. Carballo et al 47 described "green" approaches to determine metals in lubricating oils by ETAAS. Two methods were proposed termed "emulsion" and "three-component solution" based on sample emulsication and were developed to determine Ag, Cr, Cu, Mo, Ni, Pb and V in used lubricating oils.…”

Section: Fuels and Lubricantsmentioning

confidence: 99%

Atomic spectrometry update. Review of advances in the analysis of metals, chemicals and functional materials

Gibson

Carter

Fisher

et al. 2014

J. Anal. At. Spectrom.

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Green approaches to determine metals in lubricating oils by electrothermal atomic absorption spectrometry (ETAAS)

Cited by 25 publications

References 39 publications

Extraction induced by emulsion breaking as a tool for simultaneous multi-element determination in used lubricating oils by ICP-MS

Extraction induced by emulsion breaking as a tool for simultaneous multi-element determination in used lubricating oils by ICP-MS

Designation of Chosen Heavy Metals in Used Engine Oils Using the XRF Method

Atomic spectrometry update. Review of advances in the analysis of metals, chemicals and functional materials

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