A rapid and accurate method of quantifying deoxynivalenol (DON) and nivalenol (NIV) in soybean and soy flour is described. The samples were extracted with acetonitrile:water (84:16, v/v) and cleaned through a solidphase extraction (SPE) column. The mycotoxins were separated, detected and quantified by reversed-phase high performance liquid chromatography (HPLC) with UV detection (220 nm) using water:methanol (88:12, v/v) as mobile phase. Characteristics of this in-house method such as accuracy, precision and detection and quantification limits were defined by means of a recovery test with spiked soybean and soy flour samples. The detection limit (LOD) was 0.1 µg/g for DON and 0.2 µg/g for NIV, based on a signal-noise ratio 3:1. Quantification limit (LOQ) was established as three times the detection limit.
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|---|---|---|---|
| æè¦æµè§æ¬¡æ° | 213 | 103 | 21 |
| å ¨ææµè§æ¬¡æ° | 22 | 1 | 0 |
| PDFä¸è½½æ¬¡æ° | 16 | 0 | 0 |
A rapid and accurate method of quantifying deoxynivalenol (DON) and nivalenol (NIV) in soybean and soy flour is described. The samples were extracted with acetonitrile:water (84:16, v/v) and cleaned through a solidphase extraction (SPE) column. The mycotoxins were separated, detected and quantified by reversed-phase high performance liquid chromatography (HPLC) with UV detection (220 nm) using water:methanol (88:12, v/v) as mobile phase. Characteristics of this in-house method such as accuracy, precision and detection and quantification limits were defined by means of a recovery test with spiked soybean and soy flour samples. The detection limit (LOD) was 0.1 µg/g for DON and 0.2 µg/g for NIV, based on a signal-noise ratio 3:1. Quantification limit (LOQ) was established as three times the detection limit.
| å ¨é¨æé´ | è¿å»ä¸å¹´ | è¿å»30天 | |
|---|---|---|---|
| æè¦æµè§æ¬¡æ° | 213 | 103 | 21 |
| å ¨ææµè§æ¬¡æ° | 22 | 1 | 0 |
| PDFä¸è½½æ¬¡æ° | 16 | 0 | 0 |