Carrier element-free coprecipitation and speciation of inorganic tin in beverage samples and total tin in food samples using N-Benzoyl-N, N-diisobutylthiourea and its …
Yazarlar (2)
Doç. Dr. Özgür Doğan ULUÖZLÜ Türkiye
Mustafa Tuzen Tokat Gaziosmanpaşa Üniversitesi
| Makale Türü | Özgün Makale (Uluslararası alan indekslerindeki dergilerde yayınlanan tam makale) | ||
| Dergi Adı | LWT-Food Science and Technology | ||
| Makale Dili | – | Basım Tarihi | 10-2015 |
| Cilt / Sayı / Sayfa | 63 / 2 / 1091–1096 | DOI | – |
| Makale Linki | https://www.sciencedirect.com/science/article/pii/S0023643815002935 | ||
| UAK Araştırma Alanları |
Analitik Kimya
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| Özet |
| A new, simple, rapid and selective separation, preconcentration and speciation of Sn(II) and Sn(IV) has been developed. The procedure is based on coprecipitation of Sn(II) on N-Benzoyl-N,N-diisobutylthiourea without carrier element. While Sn(II) can be quantitatively precipitated on N-Benzoyl-N,N-diisobutylthiourea in the pH range of 8.0–9.0, recovery of Sn(IV) was below 10%. Total tin was determined after the reduction of Sn(IV) to Sn(II) with 0.1 M NaBH4 in 1 M NaOH solution. Sn(IV) concentrations were calculated as difference between total tin and Sn(II). Determination of tin concentrations was performed by graphite furnace atomic absorption spectrometry (GFAAS). Various analytical parameters including pH, amount of precipitant, sample volume, etc. were optimized. The effects of matrix ions were also examined. Enrichment factor was found as 50. The relative standard deviation was 5%. The detection limit … |
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