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Table 3 Application of the proposed and comparison methods to the determination of ALD in pure form

From: Validated spectrophotometric methods for determination of Alendronate sodium in tablets through nucleophilic aromatic substitution reactions

Parameter Method I Method II Method III Comparison Method (7)
No of experiments 6 5 6 3
x ± S.D. 100.47 ± 1.12 100.17 ± 1.21 99.23 ± 1.26 100.55 ± 1.30
t 0.096 (2.365)* 0.420 (2.447)* 1.471 (2.365)*  
F 1.347 (5.786)* 1.154 (6.944)* 1.064 (5.786)*  
  1. Each result is the average of three separate determinations
  2. *Values between brackets are the tabulated t and F values, at P = 0.05 [45].