Method 200.8

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

Scope

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
Preservation
Sample Volume
Collection Method
Instrumentation
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.