hrvatski jezikClear Cookie - decide language by browser settings

Chemical vapour generation for tin determination in high-content calcium matrix by inductively coupled plasma atomic emission spectrometry

Rončević, Sanda; Nemet, Ivan; Pitarević Svedružić, Lovorka; Medaković, Davorin (2014) Chemical vapour generation for tin determination in high-content calcium matrix by inductively coupled plasma atomic emission spectrometry. Croatica Chemica Acta, 87 (1). pp. 17-22. ISSN 0011-1643

[img]
Preview
PDF - Published Version - article
Available under License Creative Commons Attribution.

Download (1MB) | Preview

Abstract

Chemical vapour generation by reduction with sodium tetraborohydride and coupled to inductively coupled plasma spectrometry (HG-ICP-AES) was examined for tin analysis in high-content calcium matrix samples. Comparison of calibration curves in aqueous and matrix-matched solution showed good linearity (R2 = 0.9951 – 0.9999) in the observed range of concentration. The effects of added calcium were established as attenuation of emission intensity for 3% at 224.605 nm and 235.484 nm and only 1% at 283.999 nm and 189.991 nm of tin lines. The best limit of detection, i.e. 1.9 mg L-1 in aqueous and 2.1 mg L-1 in matrix- matched solution were obtained at 189.991 nm. Method of standard addition was applied for the analysis of laboratory samples of high purity calcite and aragonite shell structures and it gave 0.11 µg g-1 and 0.17 µg g-1 of tin, respectively. The accuracy of method was tested by certified reference material (NCRC, MESS-3) and good recoveries (100.08%) were obtained in both calibration modes. Tin content was determined by HG-ICP-AES method using matrix-matched calibration in shell samples of Mytilus galloprovinicialis. The obtained values of tin content showed relatively flat distribution in shells along the coast (0.511 – 0.718 µg g-1). Higher concentrations were measured on several hotspots, especially fishing ports and harbours.

Item Type: Article
Uncontrolled Keywords: calcium matrix; hydride generation; icp-aes; tin; shell analysis
Subjects: NATURAL SCIENCES > Geology
NATURAL SCIENCES > Chemistry
Divisions: Center for Marine Research
Projects:
Project titleProject leaderProject codeProject type
Procesi biomineralizacije morskih organizamaDavorin Medaković098-0982705-2727MZOS
Depositing User: Davorin Medaković
Date Deposited: 18 Aug 2016 14:21
Last Modified: 18 Aug 2016 14:21
URI: http://fulir.irb.hr/id/eprint/3002
DOI: 10.5562/cca2259

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year