Analysis of Inorganic Arsenic in Compost Digestate

AuthorSample Control
DateFebruary 2, 2026
TagINFORMATION
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Arsenic is present in environmental and biological samples in several chemical and oxidation forms, which determine its toxicity. While organic forms of arsenic are generally considered to be of low toxicity, inorganic arsenic represents the most significant form from the perspective of human health and environmental protection, due to its pronounced toxicity and potential for bioaccumulation.

Compost digestate used in agriculture must meet strict requirements regarding health safety and environmental protection. One of the key safety parameters is the content of inorganic arsenic, which may be a risk to soil, plants, groundwater, and human health.

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Why Is the Analysis of Inorganic Arsenic Important?

Inorganic arsenic in compost may originate from various input materials, including biowaste, sludge, and industrial by-products. Its presence represents a potential risk to soil quality, the safety of agricultural production, and compliance with applicable regulations. For this reason, laboratory determination of inorganic arsenic is a crucial step in compost quality control prior to its application on agricultural land.

Regular laboratory analysis enables:

  • verification of compliance with applicable regulations

  • safe application of digestate on agricultural land

  • protection of soil, crops, and the food chain

Accredited Analysis at the Sample Control Laboratory

The Sample Control laboratory offers an accredited method for the determination of inorganic arsenic in compost digestate using the HPLC-ICP-MS technique.

Our services include:

  • determination of inorganic arsenic in compost digestate

  • professional sampling or receipt of submitted samples

  • precise analytical processing and interpretation of results

  • clear and comprehensive accredited laboratory reports