The content of phenoxymethylpenicillin potassium in phenoxymethylpenicillin potassium tablet was determined indirectly with second order differential simple oscillographic voltammetry. The linear concentration range a...The content of phenoxymethylpenicillin potassium in phenoxymethylpenicillin potassium tablet was determined indirectly with second order differential simple oscillographic voltammetry. The linear concentration range and the detection limit is 2 6×10 -6 ～3 5×10 -5 mol/L and 1×10 -6 mol/L, respectively. The regressive equation is h(V) =1 169-1 129×10 4 c (mol/L), ( r =-0 999 8). The RSD of the determination for 1 8×10 -5 mol/L phenoxymethylpenicillin potassium is 3 2%, and the recovery is 102 2%( n =8). This method has the advantages of convenient, rapid and without special pretreatment of the sample.展开更多
文摘The content of phenoxymethylpenicillin potassium in phenoxymethylpenicillin potassium tablet was determined indirectly with second order differential simple oscillographic voltammetry. The linear concentration range and the detection limit is 2 6×10 -6 ～3 5×10 -5 mol/L and 1×10 -6 mol/L, respectively. The regressive equation is h(V) =1 169-1 129×10 4 c (mol/L), ( r =-0 999 8). The RSD of the determination for 1 8×10 -5 mol/L phenoxymethylpenicillin potassium is 3 2%, and the recovery is 102 2%( n =8). This method has the advantages of convenient, rapid and without special pretreatment of the sample.
