Specification Test Results

• Purity (GC):
  ≥ 99.9 %
• Identity (IR):
  conforms
• Evaporation residue:
  ≤ 2.0 mg/l
• Color:
  ≤ 10 Hazen
• Water:
  ≤ 0.05 %
• Acidity:
  ≤ 0.0002 meq/g
• Alkalinity:
  ≤ 0.0002 meq/g
• Gradient grade (at 235 nm):
  ≤ 1.0 mAU
• Gradient grade (at 254 nm):
  ≤ 1.0 mAU
• Fluorescence (as quinine at 254 nm):
  ≤ 1.0 ppb
• Fluorescence (as quinine at 365 nm):
  ≤ 0.5 ppb
• Transmission (Checking after purging with N₂ (at 220 nm)):
  ≥ 80 %
• Transmission (Checking after purging with N₂ (at 230 nm)):
  ≥ 90 %
• Transmission (Checking after purging with N₂ (from 250 nm)):
  ≥ 99 %
• Al (Aluminium):
  ≤ 10 ppb
• Ca (Calcium):
  ≤ 10 ppb
• Fe (Iron):
  ≤ 10 ppb
• K (Potassium):
  ≤ 5 ppb
• Mg (Magnesium):
  ≤ 10 ppb
• Na (Sodium):
  ≤ 150 ppb
• Any further metal (ICP-MS):
  ≤ 5 ppb
• Suitable for LC-MS; Intensity of background mass peak based on reserpine (APCI/ESI positive):
  ≤ 10 ppb
• Suitable for LC-MS; Intensity of background mass peak based on reserpine (APCI/ESI negative):
  ≤ 20 ppb