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Table 4 Linearity study of the proposed method

From: Screening of caffeine, preservatives and antioxidants in dairy products available in Bangladesh using an RP-HPLC method

Standards Concentration range (mg/L) Regression equation (Y = mX + c) Correlation coefficient (R2)
CF 2–200 Y = 23019X-42400 0.996
BA 50–500 Y = 14211X−43609 0.992
PP 2–100 Y = 10605X−11766 0.992
BP 2–100 Y = 9294X−84770 0.997
BHA 50–300 Y = 1720X +10364 0.996
BHT 50–300 Y = 1855X−46598 0.998
  1. CF caffeine, BA benzoic acid, PP propylparaben, BP butylparaben, BHA butylated hydroxyanisole, BHT butylated hydroxytoluene