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Table 1 Statistical data of calibration curve

From: A new RP–HPLC method for simultaneous quantification of perindopril erbumine, indapamide, and amlodipine besylate in bulk and pharmaceutical dosage form

Parameters

Perindopril erbumine

Indapamide

Amlodipine besylate

Concentration range (μg/ml)

0.400 - 7.60

0.125 - 2.375

0.500 - 9.50

Regression coefficient (r2)

0.9979

0.9980

0.9980

Slope of regression

22178.4

85598.4

36123.2

Standard deviation of slope

152.16

558.97

70.38

Intercept of regression

8196.9

2130.0

7844.5

Standard deviation of Intercept

438.18

482.85

606.84

Detection limit (μg/ml)

0.065

0.019

0.055

Quantitation limit (μg/ml)

0.198

0.056

0.168