| 摘要 |
N-Phosphonomethylglycine can be purified and concentrated from aqueous solutions containing N-phos-phonomethylglycine and impurities, such as N-formyl-N-phosphonomethylglycine, phosphorous acid, and the like, by passing the aqueous solution through an ion exchange column containing a weakly basic ion exchange resin to remove such impurities.
|
