Method 200.8

Elements by Ion Coupled Plasma / Mass Spectrometry (ICP/MS)


This method provides procedures for determination of dissolved elements in ground waters, surface waters and drinking water. It may also be used for determination of total recoverable element concentrations in these waters as well as wastewaters, sludges and soils samples.

For total recoverable analysis of a solid or an aqueous sample containing undissolved material, analytes are first solubilized by gentle refluxing with nitric and hydrochloric acids. For the determination of dissolved analytes, the sample must be filtered through a 0.45 µm filter immediately after collection. An aliquot of the filtered aqueous sample or for the “direct analysis” total recoverable determination of analytes in drinking water where sample turbidity is <1 NTU, the sample is acidified with nitric acid, and then diluted to a predetermined volume and mixed before analysis. Analyses for both preparations are performed by ICP/MS (inductively coupled plasma mass spectrometry).

Aqueous samples containing suspended or particulate material ≥ 1% (w/v) should be extracted as a solid type sample.

-Methods for the Determination of Metals in Environmental Samples, Supplement 1 (EPA/600/R-94/111)

Method Data

Method 200.8
Hold Time
Sample Volume
Collection Method
Method Reference 

Analyte Test

Analyte Formula CAS Number
Aluminum Al 7429-90-5
Antimony Sb 7440-36-0
Arsenic As 7440-38-2
Barium Ba 7440-39-3
Beryllium Be 7440-41-7
Cadmium Cd 7440-43-9
Calcium Ca 7440-70-2
Chromium Cr 7440-47-3
Cobalt Co 7440-48-4
Copper Cu 7440-50-8
Iron Fe 7439-89-6
Lead Pb 7439-92-1
Magnesium Mg 7439-95-4
Manganese Mn 7439-96-5
Molybdenum Mo 7439-98-7
Nickel Ni 7440-02-0
Potassium K 7440-09-07
Selenium Se 7782-49-2
Silver Ag 7440-22-4
Sodium Na 7440-23-5
Thallium Tl 7440-28-0
Titanium Ti 7440-32-6
Vanadium V 7440-62-2
Zinc Zn 7440-66-6

*Please contact our project management team for more information about reporting limits and other specific project needs.

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