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Wasim M, Tariq A, Qureshi RN, Shafique MA. Characterization of toothpastes for fluorine and other elements by INAA and ICP-OES. RADIOCHIM ACTA 2022. [DOI: 10.1515/ract-2022-0076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Abstract
Fluoride toothpastes have made a significant contribution towards oral hygiene. This study proposes instrumental neutron activation analysis (INAA) as a suitable technique for determining fluorine in toothpastes. The method involved a 10 s irradiation, followed by 10–20 s decay, and counting for 10 s, using a pneumatic system and high purity germanium detector. All irradiations were performed at miniature neutron source reactor with thermal neutron flux 1 × 1012 cm−2 s−1. Since Na was present in all toothpastes, the quantification of fluorine required correction for 23Na(n,α)20F threshold reaction. Fluorine determination was validated by analysing the samples by ion chromatography. All toothpastes were also analysed for other elements by k
0-INAA and ICP-OES. Both techniques quantified 28 elements including Al, As, Ba, Ca, Ce, Cl, Co, Cr, Cu, F, Fe, Hf, K, La, Mg, Mn, Na, P, S, Sb, Sc, Si, Sm, Sn, Sr, Ta, Ti and Zn. This study, categorized toothpastes in five groups based on concentrations of Ca, P and Ti.
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Affiliation(s)
- Mohammad Wasim
- Isotope Production Division , Pakistan Institute of Nuclear Science and Technology , P.O. Nilore , Islamabad , Pakistan
| | - Arfan Tariq
- Isotope Production Division , Pakistan Institute of Nuclear Science and Technology , P.O. Nilore , Islamabad , Pakistan
| | - Rashid Nazir Qureshi
- Isotope Production Division , Pakistan Institute of Nuclear Science and Technology , P.O. Nilore , Islamabad , Pakistan
| | - Munib Ahmed Shafique
- Isotope Production Division , Pakistan Institute of Nuclear Science and Technology , P.O. Nilore , Islamabad , Pakistan
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Gleisner H, Einax JW, Morés S, Welz B, Carasek E. A fast and accurate method for the determination of total and soluble fluorine in toothpaste using high-resolution graphite furnace molecular absorption spectrometry and its comparison with established techniques. J Pharm Biomed Anal 2011; 54:1040-6. [DOI: 10.1016/j.jpba.2010.12.013] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2010] [Revised: 12/08/2010] [Accepted: 12/08/2010] [Indexed: 10/18/2022]
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Titrimetric determination of phosphates and monofluorophosphates in tooth pastes. ACTA ACUST UNITED AC 1993. [DOI: 10.1007/bf00326046] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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