Determination of Sulfur in Bioethanol Certified Reference Material

Kitamaki, Yuko; Zhu, Yanbei; Inagaki, Shinsuke; Matsuo, Mayumi; Taniguchi, Sachiko; Numata, Masahiko; Kato, Kenji

doi:10.1627/jpi.56.171

Cited by 6 publications

(3 citation statements)

References 5 publications

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“…In 18 months, five tests were performed for each element by ICP-MS. Assessments of the results were carried out following the ISO Guide 35:2006, 13 in a similar way as described for sulfur in bioethanol CRM 14 and pesticides in cabbage and green onion CRMs. 15 …”

Section: Homogeneity Test and Stability Studymentioning

confidence: 99%

Development of a Certified Reference Material (NMIJ CRM 7203-a) for Elemental Analysis of Tap Water

et al. 2017

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A certified reference material (CRM), NMIJ CRM 7203-a, was developed for the elemental analysis of tap water. At least two independent analytical methods were applied to characterize the certified value of each element. The elements certified in the present CRM were as follows: Al, As, B, Ca, Cd, Cr, Cu, Fe, K, Mg, Mn, Mo, Na, Ni, Pb, Rb, Sb, Se, Sr, and Zn. The certified value for each element was given as the (property value ± expanded uncertainty), with a coverage factor of 2 for the expanded uncertainty. The expanded uncertainties were estimated while considering the contribution of the analytical methods, the method-to-method variance, the sample homogeneity, the long-term stability, and the concentrations of the standard solutions for calibration. The concentration of Hg (0.39 μg kg -1 ) was given as the information value, since loss of Hg was observed when the sample was stored at room temperature and exposed to light. The certified values of selected elements were confirmed by a co-analysis carried out independently by the NMIJ (Japan) and the KRISS (Korea).

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Section: Homogeneity Test and Stability Studymentioning

confidence: 99%

Development of a Certified Reference Material (NMIJ CRM 7203-a) for Elemental Analysis of Tap Water

et al. 2017

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“…Quantication of water was carried out by using 1-butanol as an internal standard (IS) using the standard addition method. 26,30 1-Butanol was dehydrated over molecular sieves for a few days in advance. A series of water standard solutions were prepared in a glove box by gravimetric mixing of water with 1butanol.…”

Section: Standard Addition Methodsmentioning

confidence: 99%

Development of a reliable method to determine water content by headspace gas chromatography/mass spectrometry with the standard addition technique

2015

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A new and effective method for accurate water content determination using headspace gas chromatography/mass spectrometry (GC/MS) with the standard addition technique was developed. This method was applied to the analysis of commercially available water standards prepared in many kinds of solvent matrices. The results obtained were consistent with the standard specifications and the values obtained by Karl Fisher (KF) titration within the range of uncertainty. Furthermore, the method was also applied to biofuel samples such as biodiesel derived from palm. Finally, the results revealed that headspace GC/MS is a superior technique for water content analysis, and the developed method is applicable to a variety of analytes for which KF titration is not appropriate.

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“…As with fossil fuel, the sulfur content in bioethanol and biodiesel fuel is required to be 10 mg kg -1 or less by the Japanese Industrial Standards (JIS) 2), 3) . Therefore, a certified reference material (CRM) for bioethanol, NMIJ CRM 8301-a, has been developed and issued by the National Metrology Institute of Japan (NMIJ) 4) . On the other hand, only two biodiesel fuel CRMs for quality control, NIST SRM 2772 (Biodiesel (Soy-Based)) and NIST SRM 2773 (Biodiesel (Animal-Based)) are available 5), 6) .…”

Section: Introductionmentioning

confidence: 99%

Accurate Characterization of Sulfur in Biodiesel Fuel Certified Reference Material

Kitamaki

Zhu

Numata

2016

J. Jpn. Petrol. Inst.

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A certified reference material (CRM), NMIJ CRM 8302-a, for the quality control of biodiesel fuel analysis has been issued by the National Metrology Institute of Japan, National Institute of Advanced Industrial Science and Technology (NMIJ, AIST). This CRM is based on 100 % fatty acid methyl esters (palm oil-based, B100 Biodiesel). The certified parameters are content of water and 6 elements (S, Na, K, Mg, Ca and P); density and kinematic viscosity. The methods for the accurate characterization of sulfur in biodiesel fuel certified reference material are described. The concentration (mass fraction) of sulfur was determined by three inductively coupled plasma tandem quadrupole mass spectrometer (ICP-MS/MS) methods and a combustion ion chromatography (CIC) method. The CIC result was validated by determining sulfur content in three certified reference materials (NIST SRM 2773, NIST SRM 2298 and NIST SRM 2299). The certified value of sulfur in the CRM 8302-a was determined as the weighted mean of the results of the above four methods.

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Determination of Sulfur in Bioethanol Certified Reference Material

Cited by 6 publications

References 5 publications

Development of a Certified Reference Material (NMIJ CRM 7203-a) for Elemental Analysis of Tap Water

Development of a Certified Reference Material (NMIJ CRM 7203-a) for Elemental Analysis of Tap Water

Development of a reliable method to determine water content by headspace gas chromatography/mass spectrometry with the standard addition technique

Accurate Characterization of Sulfur in Biodiesel Fuel Certified Reference Material

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