Comparative Study on Determination Methods of Phosphorus Penoxide in Silicate Ore
In the laboratory without large-scale instruments,the main methods for the determination of phosphorus pentoxide in silicate rocks are phosphorus vanadium molybdenum yellow spectrophotometry,phosphorus molybdenum blue light method,and antimony salt molybdenum blue light method,the first two have been listed as the national standard method(GB/T 14506.9-93).In this paper,the most suitable test method for the determination of phosphorus pentoxide was obtained by comparing the three methods of simple operation,time,reagent dosage,accuracy and precision of the results[5].Synthetical analysis,antimony salt molybdenum blu-ray method is a more simple,accurate and practical method,which can better meet the needs of sample inspection.