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- [41] ATOMIC-ABSORPTION ANALYSIS OF NI, CU, FE AND CO ALLOYS ZAVODSKAYA LABORATORIYA, 1975, 41 (02): : 186 - 187
- [42] CONDUCTOMETRIC DETERMINATION OF CD, CO, CU, NI AND ZN AND SIMULTANEOUS DETERMINATION OF CU-CD, CU-CO, CU-NI, CU-ZN AND CD-NI, CO-NI, ZN-NI ZEITSCHRIFT FUR ANALYTISCHE CHEMIE FRESENIUS, 1970, 252 (06): : 375 - &
- [46] PECULIARITIES OF FLAME ATOMIC-ABSORPTION DETERMINATION OF CO AND NI IN SOILS DOKLADI NA BOLGARSKATA AKADEMIYA NA NAUKITE, 1979, 32 (07): : 907 - 910
- [48] DETERMINATION OF TITANIUM BY ATOMIC-ABSORPTION SPECTROMETRY FRESENIUS ZEITSCHRIFT FUR ANALYTISCHE CHEMIE, 1976, 278 (02): : 121 - 124