Separation and quantitation of methenamine in urine by ion-pair extraction.

@article{Strom1986SeparationAQ,
  title={Separation and quantitation of methenamine in urine by ion-pair extraction.},
  author={James Grady Strom and Hye Won Jun},
  journal={Journal of pharmaceutical sciences},
  year={1986},
  volume={75 4},
  pages={416-20}
}
An ion-pair extraction technique is described for separating methenamine, a urinary tract antibacterial agent, from formaldehyde in human urine samples. Separation conditions are developed from extraction constants for the methenamine-bromocresol green ion-pair. The technique involves adsorption of the ion-pair onto a silica cartridge and elution with… CONTINUE READING