Automated modification of the molybdenum blue colorimetric method for phosphorus determination in soil extracts

Communications in Soil Science and Plant Analysis

Volumn 39, Issue 15-16, 2008, Pages 2250-2257

  Hurtado, Maria Dolores ^a   Carmona, Sergio ^a   Delgado, Antonio ^a  

^a UNIVERSITY OF SEVILLE   (Spain)

Author keywords

Automated analysis; FIA

Indexed keywords

AUTOMATION; COLORIMETRY; EXTRACTION METHOD; MOLYBDATE GROUP; MOLYBDENUM; PHOSPHORUS;

EID: 50149115002     PISSN: 00103624     EISSN: 15322416     Source Type: Journal    
DOI: 10.1080/00103620802289125     Document Type: Article

References (12)

1. Almeida, M. I. G. S., M. A. Segundo, J. L. F. C. Lima, and A. O. S. S. Rengel. 2005. Multi-syringe flow injection system for the determination of available phosphorus in soil samples. International Journal of Environmental Analytical Chemistry 85:51-62.
2. Fernandes, R. N., and B. F. Reis. 2002. Flow system exploiting multicommutation to increase sample residence time for improved sensitivity. Simultaneous determination of ammonium and ortho-phosphate in natural water. Talanta 58:729-737.
3. Galhardo, C. X., and J. C. Masini. 2000. Spectrophotometric determination of phosphate and silicate by sequential injection using molybdenum blue chemistry. Analytica Chimica Acta 417:191-200.
4. Kuo, S. 1996. Phosphorus. In Methods of soils analysis, part 3: Chemical methods, ed. D. L. Sparks, 869-919. Madison, Wisc.: SSSA.
5. Lachat Instruments. 2005. Determination of orthophosphate by discrete analysis (AP300 Method D10-115-01-1-A). Loveland, Col.: Lachat Instruments, Hach Company.
6. Langlois, J. L., D. W. Johnson, and G. R. Mehuys. 2003. Adsorption and recovery of dissolved organic phosphorus and nitrogen by mixed-bed ion-exchange resin. Soil Science Society of America Journal 67:889-894.
7. Mas-Torres, F., A. Muñoz, J. M. Estela, and V. Cerdà. 1997. Simultaneous determination of phosphate and silicate in water by sequential injection analysis. Analyst 122:1033-1038.
8. McKelvie, I. D., D. M. W. Peat, G. P. Matthews, and P. J. Worsfold. 1997. Elimination of the Schlieren effect in the determination of reactive phosphorus in estuarine waters by flow-injection analysis. Analytica Chimica Acta 351:265-271.
9. Miró, M., J. M. Estela, and V. Cerdà. 2003. Application of flowing stream techniques to water analysis, part I: Ionic species: Dissolved inorganic carbon, nutrients, and related compounds. Talanta 60:867-886.
10. Murphy, J., and J. P. Riley. 1962. A modified single solution method for the determination of phosphate in natural waters. Analytica Chimica Acta 27:31-36.
11. Olsen, S. R., C. V. Cole, F. S. Watanabe, and L. A. Dean. 1954. Estimation of available phosphorus in soils by extraction with sodium bicarbonate (USDA Circ. 939). Washington, D.C.: U.S. Government Printing Office.
12. U.S. Geological Service 1999. New reporting procedures based on long-term method detection levels and some considerations for interpretation of water-quality data provided by the U.S. Geological Survey National Water Quality Laboratory (Open-file report 99-193). Reston, Va.: USGS.