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Table 1 Regression equations, correlation coefficients, linear ranges and detection limits

From: Bioaccessibility and risk assessment of heavy metals, and analysis of arsenic speciation in Cordyceps sinensis

Analyte Linear equation R 2 Linear range (µg L−1) LOD (µg L−1) LOQ (µg L−1)
Cu Y = 38371.1x + 1119.4 0.9999 0.02–200 0.007 0.020
Pb Y = 230129.3x + 32337.6 0.9996 0.10–20 0.026 0.100
As Y = 2504.2x + 32.7 0.9999 0.02–20 0.010 0.030
Cd Y = 30243.4x + 300.6 0.9998 0.02–20 0.005 0.020
Hg Y = 34165.1x + 84.7 0.9973 0.02–5 0.006 0.020