Research Article

Establishment of the Quantitative Analysis of Multiindex in Euphorbia lathyris by the Single Marker Method for Euphorbia lathyris Based on the Quality by Design Concept

Table 4

Standard curve of euphorbia factor L1, L3, and L4.

CompoundStandard curverLinear range (μg)

Euphorbia factor L1Y = 1244.6X + 10.2180.99990.1008–2.016

Euphorbia factor L3Y = 1516.8X − 12.1760.99980.1005–2.010

Euphorbia factor L4Y = 597.4X + 11.6130.99990.1505–3.010