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| Titel: |
Survey of organotin compounds in blended wines |
| Auteur: |
Forsyth, D. S. Sun, W. F. Dalglish, K. |
| Verschenen in: |
Food additives and contaminants. Pt. A, Chemistry, analysis, control, exposure & risk assessment |
| Paginering: | Jaargang 11 (1994) nr. 3 pagina's 343-350 |
| Jaar: |
1994-05 |
| Inhoud: |
An extraction method for butyltin, cyclohexyltin, octyltin and phenyltin compounds in wines was developed using 0.05% tropolone in 75% diethyl ether/pentane. Recoveries averaged 96.8% (range 78-121%). Methyl derivatives made by Grignard reaction were quantitated by gas chromatography (GC)-atomic absorption spectrometry (AAS). Twenty-nine of the 90 samples (32.2%) tested contained at least one of the analytes. Mono- and dioctyltin were found in one sample only, at levels of 2ยท41 and 0.12 ng/ml respectively. Dibutyltin levels ranged from <0.08 to 1.44ng/ml. Monobutyl and tributyltin were found less frequently and at lower levels than dibutyltin. GC/mass spectrometric analysis confirmed the presence of butyl- and octyltins. No other organotin compounds were detected by either GC-AAS or GC-MS. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
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