A response surface methodology which employs an orthogonal regression technique and a third-order correction was used to determine in situ engineering properties of an untilled and a tilled Yolo loam soil. The technique employed an elasto-plastic constitutive material model for soil with Drucker Pra
Voltammetric determination of Prometrine in soil and water
✍ Scribed by Walenty Szczepaniak; Bernadeta Czyżowicz; Maria Ren
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 334 KB
- Volume
- 305
- Category
- Article
- ISSN
- 0003-2670
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✦ Synopsis
A sensitive adsorptive stripping differential pulse voltammetric method was proposed for the determination of Prometrine in soil and water. The voltammetric response was evaluated with respect to a few electrolyte solutions, the accumulation time and potential, and the concentration dependence. The relationship between i, and Prometrine concentration was linear in the range 1 X 10PR-11 X lo-' M Prometrine. Conditions for soil and water sample preparation were established. The relative standard deviation is 6.5% for 5 determinations of Prometrine in water and 3.1% for 5 determinations of Prometrine in soil.
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