NEMI Method Summary


Method Summary Information

Method Number:

990.08

Media:

WATER

Revision:

First Action - 1993

Method Source:

AOAC International

Subcategory:

INORGANIC

Analytes in this method

Official Name:

Metals in Solid Wastes by Inductively Coupled Plasma Atomic Emission Method

Descriptive Name

Metals in Solid Wastes by ICP

Source Info:

AOAC International
481 North Frederick Avenue
Suite 500
Gaithersburg, Maryland 20877-2417 USA
Phone: 1-301-924-7077 (worldwide), or 1-800-379-2622 (toll-free from North America)
Fax: 1-301-924-7089
E-mail: aoac@aoac.org

Citation:

AOAC Methods Volume 1, 16th Ed. (1998)

Brief Method
Summary:

Method measures element-emitted light by optical spectrometry. Digested materials are nebulized into radio-frequency inductively coupled plasma. Spectra of elements are dispersed by grating spectrometer, and intensities are measured by photomultiplier tubes. Correction for background and interferences is required.

Scope And
Application:

Applicable to determination of Al, Sb, As, Ba, Be, Cd, Ca, Cr, Co, Cu, Fe, Pb, Mg, Mn, Mo, Ni, K, Se, Ag, Na, Tl, V, and Zn in coal fly ash, industrial and electroplating sludges, mine tailings, river sediments, and soils.

Applicable
Conc Range:

None given.

Interferences:

I. SPECTRAL INTERFERENCES: (1) Background emmission or stray light. (2) Spectral overlap of emissions.
II. PHYSICAL INTERFERENCES: High viscosity or high particulate levels of sample can clog nebulizer.
III. CHEMICAL INTERFERENCES: (1) Compound formation. (2) Ionization. (3) Solute-vaporization.
IV. MEMORY INTERFERENCES: Carry-over from sample.

QC Requirements:

instrument check std. soln., interference check std. soln., quality control std. soln.

Sample Handling:

No information given.

Max Holding Time:

Relative Cost:

$201 to $400

URL to obtain ordering information for this method:

http://www.aoac.org/pubs/oma.htm

4741

Page 1

Method Summary Information