共 50 条
- [1] COMPARISON OF AUTOMATIC DUMAS AND KJELDAHL METHODS FOR DETERMINATION OF TOTAL NITROGEN IN FERTILIZERS JOURNAL OF THE ASSOCIATION OF OFFICIAL ANALYTICAL CHEMISTS, 1969, 52 (05): : 943 - +
- [3] COULOMETRIC DETERMINATION OF KJELDAHL NITROGEN JOURNAL OF THE ASSOCIATION OF OFFICIAL ANALYTICAL CHEMISTS, 1966, 49 (04): : 865 - &
- [4] SEMIMICRO-KJELDAHL NITROGEN DETERMINATION INDUSTRIAL AND ENGINEERING CHEMISTRY-ANALYTICAL EDITION, 1945, 17 (06): : 397 - 398
- [8] KJELDAHL DETERMINATION OF NITROGEN IN REFRACTORY MATERIALS JOURNAL OF THE ASSOCIATION OF OFFICIAL AGRICULTURAL CHEMISTS, 1949, 32 (01): : 118 - 127
- [10] POLAROGRAPHIC-DETERMINATION OF KJELDAHL NITROGEN JOURNAL OF THE ASSOCIATION OF OFFICIAL ANALYTICAL CHEMISTS, 1982, 65 (01): : 178 - 180