| Title | This part of CSS99025 specifies a method for microwave digestion of biowaste, sludge and soil by the use of nitric acid.
Digestion with nitric acid will not necessarily accomplish total decomposition of the sample; the extracted analyte concentrations may not necessarily reflect the total content in the sample. However, for most environmental applications the result is fit for the purpose. This method is applicable to microwave-assisted acid digestion of biowaste, sludge and soils for the following elements: Aluminium (Al), arsenic (As), barium (Ba), boron (B), cadmium (Cd), calcium (Ca), chromium (Cr), cobalt (Co), copper (Cu), iron (Fe), lead (Pb), magnesium (Mg), manganese (Mn), mercury (Hg), molybdenum (Mo), nickel (Ni), potassium (K), selenium (Se), sodium (Na), strontium (Sr), thallium (Tl), vanadium (V) and zinc (Zn).
The method is intended to provide a rapid multi-element acid digestion prior to analysis. Solutions produced by the method are suitable for analysis by e.g. atomic absorption spectrometry (FAAS, HGAAS, CVAAS, and GFAAS), inductively coupled plasma emission spectrometry (ICP-OES) and inductively coupled plasma mass spectrometry (ICP-MS).
NOTE The degree to which analytes are brought into solution suitable for subsequent analysis may depend on the principle of the subsequent analysis. Some analytical methods require the element in solution independent of its chemical state, others require a specific valence or a specific ionic species, for instance hydride atomic spectrometry, photometry and electrochemical methods. |
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| Scope | This part of CSS99025 specifies a method for microwave digestion of biowaste, sludge and soil by the use of nitric acid.
Digestion with nitric acid will not necessarily accomplish total decomposition of the sample; the extracted analyte concentrations may not necessarily reflect the total content in the sample. However, for most environmental applications the result is fit for the purpose. This method is applicable to microwave-assisted acid digestion of biowaste, sludge and soils for the following elements: Aluminium (Al), arsenic (As), barium (Ba), boron (B), cadmium (Cd), calcium (Ca), chromium (Cr), cobalt (Co), copper (Cu), iron (Fe), lead (Pb), magnesium (Mg), manganese (Mn), mercury (Hg), molybdenum (Mo), nickel (Ni), potassium (K), selenium (Se), sodium (Na), strontium (Sr), thallium (Tl), vanadium (V) and zinc (Zn).
The method is intended to provide a rapid multi-element acid digestion prior to analysis. Solutions produced by the method are suitable for analysis by e.g. atomic absorption spectrometry (FAAS, HGAAS, CVAAS, and GFAAS), inductively coupled plasma emission spectrometry (ICP-OES) and inductively coupled plasma mass spectrometry (ICP-MS).
NOTE The degree to which analytes are brought into solution suitable for subsequent analysis may depend on the principle of the subsequent analysis. Some analytical methods require the element in solution independent of its chemical state, others require a specific valence or a specific ionic species, for instance hydride atomic spectrometry, photometry and electrochemical methods. |
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