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

Química Nova

Edson Marcio Mattiello²  Hugo Alberto Ruiz²  Ivo Ribeiro Da Silva²  Jorge Eduardo De Souza Sarkis¹ 

[1] ,Universidade Federal de Viçosa Departamento de Solos Viçosa MG ,Brasil

关键词: isotope ratio;    micronutrients;    translocation;   

DOI  :  10.1590/S0100-40422011000300025

来源: SciELO

【 摘 要 】

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.

【 授权许可】

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