共 50 条
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- [22] THE SEMI-MICRO KJELDAHL METHOD FOR THE DETERMINATION OF NITROGEN IN COAL JOURNAL OF APPLIED CHEMISTRY, 1954, 4 (06): : 330 - 340
- [30] A COMBUSTION CHAMBER FOR THE SEMI-MICRO DETERMINATION OF CARBON MONOXIDE AND HYDROGEN JOURNAL OF SCIENTIFIC INSTRUMENTS, 1952, 29 (06): : 201 - 201