Uso da técnica HRICP-MS na avaliação dos isótopos de boro em eucalipto

The 10B isotope tracer technique is essential to study the B mobility in plants. Factors that can influence the quality of measured B isotope ratios were optimized experimentally using High Resolution Inductively Coupled Plasma Mass Spectrometry (HRICP-MS). An isotopically certified standard (NIST SRM-951) was used. The best combination was obtained using a resolution of 400, a RF power of 1250 W, followed by 15 measurements over a 10-s integration period each (15*10). Utilizing this approach it was possible to obtain a precision of 0.3 % in standard material and 2z % in the experimental samples. The results show the importance of establishing optimized work conditions before carrying out the analytical series.

Bibliographic Details

Main Authors:	Mattiello,Edson Marcio, Ruiz,Hugo Alberto, Silva,Ivo Ribeiro da, Sarkis,Jorge Eduardo de Souza
Format:	Digital revista
Language:	Portuguese
Published:	Sociedade Brasileira de Química 2011
Online Access:	http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422011000300025
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