page_title: Marsh test
hierarchical_section_title: Marsh test
caption_attribution_description: Drawing of the Marsh apparatus for the detection of arsenic
context_page_description: The Marsh test is a highly sensitive method in the detection of arsenic, especially useful in the field of forensic toxicology when arsenic was used as a poison. It was developed by the chemist James Marsh and first published in 1836.
  Arsenic, in the form of white arsenic trioxide As
  ₂O
  ₃, was a highly favored poison, being odourless, easily incorporated into food and drink, and before the advent of the Marsh test, untraceable in the body. In France, it came to be known as poudre de succession. For the untrained, arsenic poisoning will have symptoms similar to cholera.
context_section_description: The Marsh test is a highly sensitive method in the detection of arsenic, especially useful in the field of forensic toxicology when arsenic was used as a poison. It was developed by the chemist James Marsh and first published in 1836.
  Arsenic, in the form of white arsenic trioxide As
  ₂O
  ₃, was a highly favored poison, being odourless, easily incorporated into food and drink, and before the advent of the Marsh test, untraceable in the body. In France, it came to be known as poudre de succession ("inheritance powder"). For the untrained, arsenic poisoning will have symptoms similar to cholera.
caption: Apparatus for the Marsh test
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