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Inductively coupled plasma mass spectrometry method was used for assessing rare earth elements (REE) concentrations in two Romanian ordinary chondritic meteorites, Mocs (L5-6) and Pleşcoi (L5-6). The obtained results show that the two rare earth elements compositions are, as expected, similar. The lowest concentration was obtained for Tm in both meteorites: 0.032 ± 0.003 mg/kg for Mocs and 0.034 ± 0.003 mg/kg for Pleşcoi, while the highest values are shared between Ce in the case of Mocs (0.606 ± 0.048), and Nd in the case of Pleşcoi (0.512 ± 0.041). Our results were compared with mean carbonaceous chondrite values found in literature; a scaling factor of 1.7 ± 0.2 was found for our ordinary chondrites.

Keywords: inductively coupled plasma mass spectrometry, meteorite, rare earth elements, ultrasonic nebulization