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Publications (2)

  • Source
    Sanda Rončević · Anica Benutić · Ivan Nemet · Buga Gabelica
    [Show abstract] [Hide abstract] ABSTRACT: Tin content in samples of canned fruits and vegetables was determined by hydride generation inductively coupled plasma atomic emission spectrometry (HG-ICP-OES), and it was compared with results obtained by standard method of flame atomic absorption spectrometry (AAS). Selected tin emission lines intensity was measured in prepared samples after addition of tartaric acid and followed by hydride generation with sodium borohydride solution. The most favorable line at 189.991 nm showed the best detection limit (1.9 μg L(-1)) and limit of quantification (6.4 μg kg(-1)). Good linearity and sensitivity were established from time resolved analysis and calibration tests. Analytical accuracy of 98-102% was obtained by recovery study of spiked samples. Method of standard addition was applied for tin determination in samples from fully protected tinplate. Tin presence at low-concentration range was successfully determined. It was shown that tenth times less concentrations of Sn were present in protected cans than in nonprotected or partially protected tinplate.
    Full-text Article · Apr 2012 · International Journal of Analytical Chemistry
  • Ivana Sutej · Kristina Peros · Anica Benutic · [...] · Kata Rosin-Grget
    [Show abstract] [Hide abstract] ABSTRACT: Purpose: To evaluate the effect of tobacco smoking and salivary calcium on the periodontal status of young adults. Materials and methods: Plaque index, gingival bleeding on probing, supragingival calculus, DMFT index, salivary flow, pH and salivary calcium in unstimulated salivary samples were recorded in smokers and nonsmokers. Results: There were no significant differences between smokers and nonsmokers with respect to salivary flow (P = 0.08) and calcium level (P = 0.09). Significant correlations (P < 0.05) were found between a higher calcium level and higher probing depth (r = 0.60), higher number of teeth with probing depth of more than 4 mm (r = 0.70), greater clinical attachment level (r = 0.49) and lower number of teeth bleeding on probing (r = -0.50). Conclusion: Moderate smoking of tobacco cigarettes in young healthy subjects may not have a significant impact on salivary flow or calcium concentrations in unstimulated saliva, but an association exists between an increased level of salivary calcium and development of periodontal disease.
    Article · Jan 2012 · Oral health & preventive dentistry