Characterization of pneumatic fast transfer system irradiation position of KAMINI reactor for k 0-based NAA

Rao, J. S. Brahmaji; Senthilvadivu, E.; Seshadreesan, N.P.; Acharya, R.; Venkatasubramani, C.R.; Reddy, Α. V. R.

doi:10.1007/s10967-012-1724-z

Cited by 16 publications

(1 citation statement)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In general, sample heterogeneity becomes serious when a smaller size is used. In the case of NIST SRM 1646a, the recommended minimum test portion size is 500 mg (May and Rumble 2004), but literature values were obtained using 50-250 mg (Crittin et al 2000, Wasserman et al 2001, Dias et al 2002, Lo and Sakamoto 2005, Brahmaji Rao et al 2012, Eriksson et al 2013. To expand the use of the four CRMs used in this study, their sample homogeneity was investigated.…”

Section: Homogeneity Of the Four Crmsmentioning

confidence: 99%

Measurements of Rare Earth Element and Other Element Mass Fractions in Environmental Reference Materials (NIST SRM 1646a, NIST SRM 1400, IAEA‐395 and IAEA‐450) by INAA, ICP‐AES and ICP‐MS

Cao

Sucgang

Tran³

et al. 2017

Geostandard Geoanalytic Res

View full text Add to dashboard Cite

INAA, ICP‐AES and ICP‐MS were used to elementally characterise four environmental reference materials – NIST SRM 1646a (Estuarine Sediment), NIST SRM 1400 (Bone Ash), IAEA‐395 (Urban Dust) and IAEA‐450 (Algae). An analytical scheme consisting of the three methods was first applied to NIST SRM 1646a to validate the methodology because it has been extensively analysed and has certified values for many elements. With repeated analyses of NIST SRM 1646a, the accuracy and measurement repeatability of the data obtained were evaluated based on two statistical calculations (zeta‐score and Horwitz ratio) and were observed to be good enough for the analytical scheme to be applied to similar sorts of environmental/geochemical samples. Applying the same approach to NIST SRM 1400, IAEA‐395 and IAEA‐450, enabled mass fractions of 29, 38 and 28 elements to be determined, respectively. Among these results, the data for rare earth elements are of particular interest, not only for IAEA‐450 but also for the other three reference samples. The data for Pr, Gd, Dy, Ho, Er and Tm in NIST SRM 1646a are newly reported in this study. By using small test portions (< 100 mg) for NIST SRM 1646a and IAEA‐395, and recommended minimum amounts for NIST SRM 1400 and IAEA‐450, sample homogeneity was evaluated.

show abstract