PHOTOMETRIC DETERMINATION OF AVAILABLE PHOSPHORUS PENTOXIDE IN FERTILIZERS

[1] PHOTOMETRIC ANALYSIS OF PHOSPHATE ROCK [J]. ANALYTICAL CHEMISTRY, 1948, 20 (11) : 1068 - 1073

[2] JACOB KD, 1937, J ASSOC OFF ANA CHEM, V20, P277

[3] Kitson R.E., 1944, IND ENG CHEM ANALYT, V16, P379, DOI [10.1021/i560130a017, DOI 10.1021/I560130A017]

[4] KOENIG R. A., 1942, Industrial and Engineering Chemistry. Analytical edition, V14, P155, DOI 10.1021/i560102a026

[5] Direct determination of available P2O5 content of fertilizers [J]. INDUSTRIAL AND ENGINEERING CHEMISTRY-ANALYTICAL EDITION, 1938, 10 : 0143 - 0152

[6] Determination of manganese, nickel, and phosphorus in iron and steel - The use of rapid spectrophotometric methods [J]. INDUSTRIAL AND ENGINEERING CHEMISTRY-ANALYTICAL EDITION, 1938, 10 : 0001 - 0005

[7] Colorimetric determination of phosphorus in iron ore [J]. INDUSTRIAL AND ENGINEERING CHEMISTRY-ANALYTICAL EDITION, 1941, 13 : 0081 - 0083

[8] 1945, OFFICIAL TENTATIVE M

[1] PHOTOMETRIC ANALYSIS OF PHOSPHATE ROCK [J]. ANALYTICAL CHEMISTRY, 1948, 20 (11) : 1068 - 1073

[2] JACOB KD, 1937, J ASSOC OFF ANA CHEM, V20, P277

[3] Kitson R.E., 1944, IND ENG CHEM ANALYT, V16, P379, DOI [10.1021/i560130a017, DOI 10.1021/I560130A017]

[4] KOENIG R. A., 1942, Industrial and Engineering Chemistry. Analytical edition, V14, P155, DOI 10.1021/i560102a026

[5] Direct determination of available P2O5 content of fertilizers [J]. INDUSTRIAL AND ENGINEERING CHEMISTRY-ANALYTICAL EDITION, 1938, 10 : 0143 - 0152

[6] Determination of manganese, nickel, and phosphorus in iron and steel - The use of rapid spectrophotometric methods [J]. INDUSTRIAL AND ENGINEERING CHEMISTRY-ANALYTICAL EDITION, 1938, 10 : 0001 - 0005

[7] Colorimetric determination of phosphorus in iron ore [J]. INDUSTRIAL AND ENGINEERING CHEMISTRY-ANALYTICAL EDITION, 1941, 13 : 0081 - 0083

[8] 1945, OFFICIAL TENTATIVE M