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Citation: ZHENG Jian-Bin, YU Hao, ZHANG Hong-Fang. Indirect Determination of Phenoxymethylpenicillin Potassium by Second Order Differential Simple Oscillographic Voltammetry[J]. Chinese Journal of Applied Chemistry, ;2001, 18(10): 851-852. shu

Indirect Determination of Phenoxymethylpenicillin Potassium by Second Order Differential Simple Oscillographic Voltammetry

1.
Institute of Electroanalytical Chemistry, Northwest University, Xi'an 710069

Received Date: 20 February 2001
Available Online: 28 June 2001
Fund Project: 国家自然科学基金(29775018) (29775018)

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^-5mol/L and 1×10^-6 mol/L, respectively. The regressive equation is h(V)=1.169-1.129×10⁴c(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.
- oscillographic analysis,
- simple oscillographic voltammetry,
- sodium tetraphenylboronate,
- phenoxymethylpenicillin potassium
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