Characteristic redox potential-time curve in the iron(II)/nitric acid autocatalytic reaction and its application to a time measurement-determination of folic acid. |
| |
| Authors: | Jun Kato Shukuro Igarashi |
| |
| Institution: | Department of Biomolecular Functional Engineering, Faculty of Engineering, Ibaraki University, Nkanarusawa, Hitachi, Ibaraki, Japan. |
| |
| Abstract: | A characteristic redox potential-time curve of the iron(II)/nitric acid autocatalytic reaction was applied to a time measurement-determination for sub-microM levels of folic acid. The determination range was 7.5 x 10(-7) - 1.5 x 10(-5) M, the detection limit (3 sigma) was 5.9 x 10(-7) M, and the relative standard deviation was 3.6% (n = 5). |
| |
| Keywords: | |
|
|
