caa a22 4500 465748422 CHVBK 20180323111827.0 cr unu---uuuuu 170327e19900101xx s 000 0 eng 10.1007/BF00323197 doi (NATIONALLICENCE)springer-10.1007/BF00323197 Diode array detectors in flow injection analysis. Simultaneous determination of rare earth metals with Arsenazo III [Elektronische Daten] [M. Blanco, J. Coello, J. Gené, H. Iturriaga, S. Maspoch] Summary: A flow injection spectrophotometric procedure for the simultaneous determination of rare earths with Arsenazo III is reported. The spectrum of the sample is recorded by using a diode array detector and the mixed spectra are resolved with the aid of a multicomponent analysis program based on a least-squares fitting algorithm. Binary mixtures of tervalent cations at concentrations between 0.5 and 2.5 μg/g and uranyl in the range 1.4-4.3 μg/g were accurately resolved by univariate calibration. The presence of thorium (2.8-7.0 μ/g) required the use of multivariate calibration in order to obtain accurate results. Tervalent cations were globally determined as lanthanum. The sampling rate was about 60 samples/h. The results obtained in the analysis of U and Th in a pitchblende agree well with the certified values. Springer-Verlag, 1990 Blanco M. Departamento de Química, Química Analítica, Facultad de Ciencias, Universidad Autónoma de Barcelona, E-08193, Bellaterra (Barcelona), Spain aut Coello J. Departamento de Química, Química Analítica, Facultad de Ciencias, Universidad Autónoma de Barcelona, E-08193, Bellaterra (Barcelona), Spain aut Gené J. Departamento de Química, Química Analítica, Facultad de Ciencias, Universidad Autónoma de Barcelona, E-08193, Bellaterra (Barcelona), Spain aut Iturriaga H. Departamento de Química, Química Analítica, Facultad de Ciencias, Universidad Autónoma de Barcelona, E-08193, Bellaterra (Barcelona), Spain aut Maspoch S. Departamento de Química, Química Analítica, Facultad de Ciencias, Universidad Autónoma de Barcelona, E-08193, Bellaterra (Barcelona), Spain aut Fresenius' Journal of Analytical Chemistry Springer-Verlag 338/7(1990-01-01), 831-835 0937-0633 338:7<831 1990 338 216 https://doi.org/10.1007/BF00323197 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00323197 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Blanco M. Departamento de Química, Química Analítica, Facultad de Ciencias, Universidad Autónoma de Barcelona, E-08193, Bellaterra (Barcelona), Spain aut NATIONALLICENCE 700 1- Coello J. Departamento de Química, Química Analítica, Facultad de Ciencias, Universidad Autónoma de Barcelona, E-08193, Bellaterra (Barcelona), Spain aut NATIONALLICENCE 700 1- Gené J. Departamento de Química, Química Analítica, Facultad de Ciencias, Universidad Autónoma de Barcelona, E-08193, Bellaterra (Barcelona), Spain aut NATIONALLICENCE 700 1- Iturriaga H. Departamento de Química, Química Analítica, Facultad de Ciencias, Universidad Autónoma de Barcelona, E-08193, Bellaterra (Barcelona), Spain aut NATIONALLICENCE 700 1- Maspoch S. Departamento de Química, Química Analítica, Facultad de Ciencias, Universidad Autónoma de Barcelona, E-08193, Bellaterra (Barcelona), Spain aut NATIONALLICENCE 773 0- Fresenius' Journal of Analytical Chemistry Springer-Verlag 338/7(1990-01-01), 831-835 0937-0633 338:7<831 1990 338 216 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer