Example sentences of "[noun] have be used [verb] this " in BNC.
Next page| No | Sentence |
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| 1 | Several methods have been used to detect this response , including agglutination , complement fixation , and enzyme linked immunosorbent assay ( ELISA ) . |
| 2 | Only 30 per cent of the usual resources had been used to achieve this , and the entire harvest had been sold , he said . |
| 3 | A range of techniques has been used to avoid this problem , including chromatographic cellulose fibre powder to remove PCR inhibitors from the samples . |
| 4 | Several spectroscopic techniques have been used to examine this effect for CO adsorption on single-crystal metal surfaces , but bond energy changes can only be inferred indirectly from these techniques . |
| 5 | A number of approaches have been used to achieve this definition . |