Measurement procedures for the determination of arsenic.

Group 1: Techniques involving inductively coupled plasma (ICP).

Group 2: High perfromance liquid chromatography (HPLC) with element-specific detection

Group 3: Anodic stripping voltammetry (ASV)

Group 4: Solution spectrophotometry or UV-visible absorption spectrometry

Group 5: Atomic fluorescence spectrometry (AFS)

Group 6: Atomic absorption spectrometry (AAS)

Group 7: Field Test kits based on the Gutzeit reaction (arsine + mercuric bromide = yellow/brown color)

Group 8 : Gas chromatography (GC) with element-specific detection.