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EnglishA short gas-chromatographic method for analysing urinary concentrations of 2,5-hexanedione is based on acid hydrolysis of urine at pH below 0.1 and "purification" of the urine samples by microcolumns containing an octadecyl-silane phase. A 5% acetonitrile solution allows a fairly selective elution of 2,5-hexanedione from the microcolumns. Recovery of 2,5-hexanedione from urine is as great as 79.9%. The variation coefficient of the measurements is 2.8%. The results obtained from different working conditions and using packed or wide bore or capillary gas-chromatographic columns are reported.
http://hdl.handle.net/11562/4957| Titolo: | An improved method of analysing 2,5-hexanedione in urine |
| Autori interni: | PERBELLINI, Luigi |
| Data di pubblicazione: | 1990 |
| Rivista: | BRITISH JOURNAL OF INDUSTRIAL MEDICINE |
| Abstract: | A short gas-chromatographic method for analysing urinary concentrations of 2,5-hexanedione is based on acid hydrolysis of urine at pH below 0.1 and "purification" of the urine samples by microcolumns containing an octadecyl-silane phase. A 5% acetonitrile solution allows a fairly selective elution of 2,5-hexanedione from the microcolumns. Recovery of 2,5-hexanedione from urine is as great as 79.9%. The variation coefficient of the measurements is 2.8%. The results obtained from different working conditions and using packed or wide bore or capillary gas-chromatographic columns are reported. |
| Handle: | http://hdl.handle.net/11562/4957 |
| Appare nelle tipologie: | 01.01 Articolo in Rivista |
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