RESEARCH & DEVELOPMENT OF P2O5 DETERMINATION METHOD IN PHOSPHATE FERTILIZERS AND ITS VALIDATION
DOI:
https://doi.org/10.34016/pjbt.2024.21.02.934Keywords:
Phosphate, Fertilizer, Phosphorus pentoxide, Nitrophos, DAPAbstract
The validation of chemical measurement for Phosphorus determination in fertilizers followed a chain of experimental procedures to ascertain the performance characteristic (PC), connecting Precision, accuracy, reproducibility, recovery, linearity, limit of detection and of quantification. Performance characteristics are accomplished to ensure that analytical method fits the purpose of particular testing. This method was conducted in three stages those were preparation, testing and data processing. The standard test method for determination of P2O5 content in fertilizers used for regulatory purpose is somewhat lengthy and time taking. A modification was done to the standard method to create a more efficient approach that meets validation criteria and is suitable for analyzing advisory fertilizer samples. During the year 2023-24, comprehensive research and development activity were carried out at Soil and Water Testing Laboratory (SWTL) for Research, Faisalabad and analytical data was generated. The obtained results were processed statistically and compared with the acceptance requirements. The coefficient of determination (R2), precision and accuracy/recovery percentage respectively were 0.9996, 0.3-1.10% and 98.01-102.34%, while LOD and LOQ were 0.84 and 2.25%. Based on the results the study concluded that the modified test method applied to determine P2O5was appropriate for its intended use based on the acceptance criteria of performance characteristics set forth in the validation protocol and can be applied as routine method at laboratory.
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Copyright (c) 2024 Muhammad Aleem Sarwar, Sumreen Siddiq, Muhammad Faraz Anwar, Quais Muhammad Affan, Khadim Hussain, Waqas Ashraf, Hafiz Naveed Ramzan, Muhammad Arif, Muhammad Shafqat, Memoona Shehzadi, Muhammad Saeed Ashraf
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