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Table 4 Extraction efficiency using the optimized method

From: HPLC–ICP-MS speciation analysis and risk assessment of arsenic in Cordyceps sinensis

AsIII (mg/kg) AsV (mg/kg) AsIII + AsV (mg/kg)a Total arsenic (mg/kg)b Extraction efficiency (%)c
6.67 ± 2.68d 1.84 ± 1.15 8.53 ± 3.49 8.32 ± 3.25 99.85 ± 0.007
  1. aSum of AsIII and AsV was determined by high-performance liquid chromatography coupled with inductively coupled plasma mass spectrometer spectrometry (HPLC–ICP-MS)
  2. bTotal arsenic was determined using ICP-MS after digestion
  3. cRatio of AsIII + AsV to total arsenic
  4. dData are represented as mean value ± standard deviation (n = 34)