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Table 3 Number (%) of failed samples listed by the active ingredient and test

From: Substandard anti-malarial drugs in Burkina Faso

  Visual inspection Disintegration test Colour reaction Thin-layer chromatography and ultraviolet-visible spectroscopy Total
Chloroquine 23/39 (59.0%) 3/39 (7.7%) 0/39 5/39 (12.8%) 24/39* (61.5%)
Artesunate 1/9 (11.1%) 0/9 0/9 0/9 1/9 (11.1%)
Lumefantrine/Artemether 0/4 0/4 0/4 0/4 0/4
Sulphadoxine/Pyrimethamine 4/10 (40.0%) 1/10 (10.0%) 1/10 (10.0%) 1/10 (10.0%) 4/10* (40%)
Quinine 0/9 0/9 0/9 3/9 (33.3%) 3/9 (33.3%)
Amodiaquine 0/6 0/6 0/6 0/6 0/6
Total 28/77 (36.4%) 4/77 (5.2%) 1/77 (1.3%) 9/76 (11.8%) 32/77 (41.6%)
  1. * Some samples failed more than one test