Determination of P, S and Si in biodiesel, diesel and lubricating oil using ICP-MS/MS

Amais, Renata S.; Amaral, Clarice D.B.; Fialho, Lucimar L.; Schiavo, Daniela; Nóbrega, Joaquim A.

doi:10.1039/c4ay00279b

Cited by 52 publications

(44 citation statements)

References 22 publications

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“…Oxygen was solely used as the reaction gas in the researches using ICP-QMS/ QMS published up to date [26][27][28]. In the present research, H 2 was used together with O 2 as the reaction gases.…”

Section: Micro Flow 200mentioning

confidence: 99%

Determination of Sulfur in Bio-Samples by ICP-QMS/QMS with an ORC

Zhu¹,

Kitamaki²,

Kato³

et al. 2015

J Anal Bioanal Tech

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IntroductionSulfur is a major target element in metallomics research [1][2][3]. One of the reasons might be that the sulfur content in human-body is approximately 2%, while two sulfur-containing amino acids cysteine and methionine contribute to the contents of sulfur. Sulfur has four stable isotopes, i.e., S, respectively ca. 95% and 4%, they are usually analysed for metallomics purpose.Inductively coupled plasma mass spectrometry (ICP-MS) is one of the most sensitive techniques for elemental measurement due to high temperature of the ICP for ionisation, relatively simple spectra than optical analysis, and wide linearity of the detector. However, the measurement of sulfur isotopes is often challenging for ICP-MS with a single quadrupole mass spectrometer (i.e., ICP-QMS) because of the polyatomic spectral interferences, especially 16 , which is comparable to the best performance obtained using other approaches but still higher than that obtained by HR-ICP-MS with using a desolvation unit. These facts might indicate that the background signals were not controlled sufficiently in the reports by ICP-QMS/QMS up to date. From the mechanism of spectral interference separation in the ICP-QMS/QMS with and ORC, the present authors speculated that the background signal of sulfur might be achieved at the same level as that obtained by HR-ICP-MS with using a desolvation unitIn the present work, the authors tried to establish a measurement method for sulfur using ICP-QMS/QMS, where optimisation of the operation conditions was carried out to get a better detection limit (DL In the present work, the precursor ions generating spectral interferences were also investigated, which may provide valuable information for ICP-QMS measurement.The validity of the present method was confirmed by analysing three certified reference materials, NIST SRMs 2773, 2298, and 2299. The measurement of sulfur content was applied to the quantitation of two sulfur-containing amino acids, cystine and methionine, and a sulfur-containing protein. AbstractA method for determination of sulfur was investigated using an inductively coupled plasma tandem quadrupole mass spectrometer (ICP-QMS/QMS) with an octopole reaction/collision cell (ORC). It helped to achieve a lower background equivalent concentration (BEC) and a lower detection limit (DL) when 10% HNO 3 with 10% ethanol was applied as the rinse solution. Experimental InstrumentationAn ICP-QMS/QMS with an ORC (Agilent 8800s, Agilent Technologies, Japan) was applied to the measurement of sulfur isotopes and the spectral interferences. The typical operating conditions are summarised in Table 1. The operating condition for each parameter was daily optimised. A microwave digestion instrument (ETHOS 1, Milestone General K.K., Kawasaki, Japan) and TFM ® digestion vessels were utilised for the digestion of the certified reference material (CRM) samples. The cleaning of digestion vessels was carried out using an automatic cleaning system (TraceClean system, Milestone General K.K.) and then cleaned with the m...

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Section: Micro Flow 200mentioning

confidence: 99%

Determination of Sulfur in Bio-Samples by ICP-QMS/QMS with an ORC

Zhu¹,

Kitamaki²,

Kato³

et al. 2015

J Anal Bioanal Tech

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“…and normalized to 1 when Nd and Sm were absent. It is important to emphasize that in the case of single quadrupole measurements, 75 As + was the monitored specie while in MS/MS mass shift mode, oxides were easily formed into the ORS 3 when O 2 was introduced, thus 75 As 16 O + was selected for measurements at the second quadrupole.…”

Section: Sample Preparationmentioning

confidence: 99%

“…The analytical performance of ICP-MS/MS for As determination was evaluated for 75 As + (single quadrupole mode) and 75 As 16 O + (MS/MS mass shift mode). Limits of detection and sensitivities for As in single quadrupole and MS/MS mass shift modes are shown in Table 3.…”

Section: Analytical Performance and Accuracymentioning

confidence: 99%

“…11, 2016 reaction/collision processes and better conditions to deal with spectral overlaps. [14][15][16][17][18][19] Amaral et al 20 24 employed an ion chromatography-ICP-MS/MS mass shift mode to determine arsenocholine (AsC), arsenobetaine (AsB), dimethylarsine (DMA), monomethylarsine (MMA), As III and As V in CRMs of urine samples and the method developed provided better detection limits, high sensitivity and sample throughput when compared to others methods.…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of Inductively Coupled Plasma Tandem Mass Spectrometry for Determination of As in Agricultural Inputs with High REE Contents

Machado¹,

Virgílio²,

Amaral³

et al. 2016

Journal of the Brazilian Chemical Society

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In the present work, an inductively coupled plasma-tandem mass spectrometer (ICP-MS/MS) operating in single quadrupole and mass shift modes were evaluated for As determination in mineral fertilizers and agricultural gypsum with high contents of rare earth elements. For MS/MS mode, oxygen was the gas introduced into the octopole reaction system (ORS 3 ). Samples were prepared by microwave-assisted digestion with diluted nitric acid solution. The accuracy was checked by analysis of a fertilizer certified reference material (NIST SRM 695) and by addition and recovery experiments. When operating in single quadrupole mode, recoveries ranged from 59 to 151%; while values obtained by MS/MS mode varied from 81 to 105% when 0.30 mL min -1 O 2 was introduced into the ORS 3 . Limits of detection for As + in single quadrupole and AsO + in MS/MS mass shift mode were 6 and 9 ng L -1 , respectively.

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“…Acid digestion methods using HCl and H2O2, 12 H2SO4 followed by HNO3 and H2O2, 13 HNO3 and H2O2, 14 had been respectively reported to be valid for determining various elements in fuel samples. However, a longer operating time (several hours or days) and complicate digestion operations are required in these methods, accompanied by the risk of contamination from the digestion vessels and the environment.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Direct Determinations of Na, Mg, K, Ca, P, and S in Biodiesel Fuel by ICP-QMS/QMS after Xylene Dilution: Development and Application of a High-throughput Method for a Homogeneity Assessment of a Candidate Reference Material

2017

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Technology (AIST), is providing chemical and physical metrology service to the world, including the development and providing of CRMs for the analysis of fuels based on a managing system in accordance to the ISO Guide 34:2009. 2 Up to date, the NMIJ has issued RMs and CRMs of sulfur calibrating solutions (NMIJ CRMs 4215-a, 4217-a, 4221-a, NMIJ RM 4216-a) and bioethanol (NMIJ CRM 8301-a) for the analysis of fuels.3 In accordance to the development plan of CRMs for fuel analysis, a CRM for the measurements of water, methanol, density, kinematic viscosity, and regulated elements (Na, Mg, K, Ca, P, and S) was developed by the present authors' group following ISO Guide 35:2006, 4 which is an international technical guide for the development of RMs and CRMs covering general and statistical principles for certification, e.g. the production of candidate RMs, assessments of the homogeneity, stability study, and characterization.Homogeneity is one of the basic requirements for candidate materials of CRM, and the uncertainty of the homogeneity should be studied and combined to obtain the uncertainty of a certified value. 4 According to the ISO Guide 35:2006, 4 "The minimum number of bottles selected at random is between 10 and 30, but should generally not be smaller than 10". Furthermore, at least 3 sub-samples were taken for each bottle to check the reproducibility of the sample pretreatment. Therefore, measurements of over 30 sub-samples are required for a homogeneity assessment of a candidate RM. High throughput and reliable sample pretreatment methods are preferred for such kind of chemical analysis to lower the cost and to improve the working efficiency.The concentrations of Na, Mg, K, Ca, P, and S in biodiesel fuel (BDF) are regulated so as to ensure the engine performance and for environmental conservation.5 As a result, measurements of these elements are required for quality monitoring of the BDF. In responding to this requirement, certifications of the elements' contents were covered by the present candidate RM. In our previous work on the development of CRMs, Na, Mg, K, Ca, and P, were often measured by an inductively coupled plasma optical emission spectrometer (ICP-OES) and an atomic emission spectrometer (AES), 6-8 while S was measured using a total sulfur analyzer attached with a trap and release unit. 9-11 In these methods, the measurement was often carried out at specific 2017 © The Japan Society for Analytical Chemistry † To whom correspondence should be addressed. E-mail: yb-zhu@aist.go.jp Inductively coupled plasma tandem quadrupole mass spectrometry (ICP-QMS/QMS) measurements after xylene dilution were investigated as a method for determining the elements (Na, Mg, K, Ca, P, and S) in a biodiesel fuel (BDF) candidate reference material (RM). Optimizations were respectively carried out for the following parameters to obtain the best performance for measurements: O2 flow rate (additional gas to the carrier gas) to ensure complete combustion of the xylene solvent in the plasma, plasma power to obtain ...

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Determination of P, S and Si in biodiesel, diesel and lubricating oil using ICP-MS/MS

Abstract: The feasibility of inductively coupled plasma tandem mass spectrometry (ICP-MS/MS) to overcome polyatomic interferents in severely affected isotope determination is demonstrated here.

Cited by 52 publications

References 22 publications

Determination of Sulfur in Bio-Samples by ICP-QMS/QMS with an ORC

Determination of Sulfur in Bio-Samples by ICP-QMS/QMS with an ORC

Evaluation of Inductively Coupled Plasma Tandem Mass Spectrometry for Determination of As in Agricultural Inputs with High REE Contents

Simultaneous Direct Determinations of Na, Mg, K, Ca, P, and S in Biodiesel Fuel by ICP-QMS/QMS after Xylene Dilution: Development and Application of a High-throughput Method for a Homogeneity Assessment of a Candidate Reference Material

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