Low-frequency noise in analytical soil measurements |
| |
| Authors: | Petras Serapinas Jadvyga Lubytė |
| |
| Affiliation: | (1) Institute of Theoretical Physics and Astronomy, A. Gostauto 12, Vilnius, 01108, Lithuania;(2) Agrochemical Research Center, Savanorių 287, Kaunas, 03009, Lithuania |
| |
| Abstract: | Fourier analysis of the real-time quality-control charts for colorimetric, photometric, and pH soil measurements shows 1/f n (n=1±0.05) noise intensity dependence on frequency, in correspondence to the earlier test for atomic absorption measurements. In addition, the prevailing character of the sample preparation in the general noise frequency dependence is clearly demonstrated. Some important analytical problems are addressed where knowledge of the specific character of the time variation in the analytical data sets is essential. |
| |
| Keywords: | Metrology in chemistry Noise Uncertainty Reproducibility Quality-control chart |
| 本文献已被 SpringerLink 等数据库收录！ |
|
