Artigo
Uso da técnica HRICP-MS na avaliação dos isótopos de boro em eucalipto
Autor
Mattiello, Edson Marcio
Ruiz, Hugo Alberto
Silva, Ivo Ribeiro da
Sarkis, Jorge Eduardo de Souza
Institución
Resumen
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.