Analyte
Regression Equation r2 LOD (µg/mL) LOQ (µg/mL)
1 Y =6.80e+004x – 4.89e+003 0.9997 0.01 0.03
2 Y = 8.63e+004x – 1.42e+004 0.9991 0.01 0.03
3 Y = 8.09e+003x – 1.18e+004 0.9991 0.01 0.03
4 Y =3.23e+004x + 1.21e+003 0.9996 0.05 0.1
Table 1: Regression Equation, Correlation Coefficient (r2), Limit of Detection (LOD) and Limit of Quantitation (LOQ) for chemical constituents from rhizomes of C. longa L. using UPLC-UV method.