Development and practical application of limiting values for the phosphate concentration in surface waters in the Netherlands
β Scribed by Hosper, S. H.
- Publisher
- Springer-Verlag
- Year
- 1980
- Weight
- 519 KB
- Volume
- 14
- Category
- Article
- ISSN
- 1573-5125
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π SIMILAR VOLUMES
We present here an improvement in the classical molybdate method for inorganic phosphate determination. This method has high sensitivity, with 1 nmol Of Pi giving an absorbance change of 0.060 &a unit. It is highly reproducible and the color remains stable for at least 3.5 h. In addition the use of
## Abstract A procedure has been developed for the determination of quinclorac, bentazone, 2,4βD, clomazone, and propanil residues in surface and agriculture waters by SPE and HPLCβUV. The method was validated and was applied for levels between 0.1 and 0.5 g/L, after a 500βfold preβconcentration. A