Mayer W J, Greenberg M S
J Chromatogr Sci. 1979 Nov;17(11):614-6. doi: 10.1093/chromsci/17.11.614.
Oxalic acid determinations are made using two modes of electrochemical detection, namely, classical d.c. and differential pulse, after separation by ion-pair, ion exchange high performance liquid chromatography. Peak height ratio plots are constructed and compared for uric acid and oxalic acid mixtures using both electrochemical detection modes. The enhanced selectivity realized by use of the differential pulse electrochemical detection mode is demonstrated.
采用离子对、离子交换高效液相色谱法分离后，使用两种电化学检测模式，即经典直流检测和差分脉冲检测，对草酸进行测定。使用这两种电化学检测模式，构建并比较了尿酸和草酸混合物的峰高比图。结果表明，使用差分脉冲电化学检测模式可实现更高的选择性。
