共 50 条
- [1] Determination of formaldehyde in the presence of ammonia and urotropin Industrial laboratory, 1988, 54 (04): : 480 - 481
- [2] POTENTIOMETRIC DETERMINATION OF UROTROPIN IN WASTE WATERS IN PRESENCE OF AMMONIA INDUSTRIAL LABORATORY, 1970, 36 (08): : 1170 - &
- [4] THE DETERMINATION OF AMMONIA IN THE PRESENCE OF NITRITES INDUSTRIAL LABORATORY, 1960, 26 (01): : 57 - 57
- [8] Determination of pyridine bases in the presence of ammonia INDUSTRIAL AND ENGINEERING CHEMISTRY-ANALYTICAL EDITION, 1933, 5 : 302 - 304
- [9] DETERMINATION OF AMMONIUM IONS BY SODA IN PRESENCE OF FORMALDEHYDE COMPTES RENDUS HEBDOMADAIRES DES SEANCES DE L ACADEMIE DES SCIENCES SERIE C, 1968, 267 (01): : 70 - &