
doi: 10.15581/021.7883
Se modifica la técnica de determinación de creatinina en el sentido de aislar la creatinina y creatina de la muestra previamente al análisis colorimétrico. La muestra problema, al igual que los patrones, se pasa por una columna de resina intercambiadora de cationes en forma ácida y se eluye creatina y creatinina en una cantidad medida de NaOH. Se dan detalles de la técnica y se discute ampliamente la validez del método con múltiples ensayos en todas las circunstancias que pudieran afectar a los resultados.
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