NEMI Method Summary


Method Summary Information

Method Number:

239.1

Media:

WATER

Revision:

Issued 1971; Editorial Revision 1974 and 1978

Method Source:

U.S. EPA National Exposure Research Laboratory (NERL) [formerly EMSL]

Analytes in this method

Subcategory:

INORGANIC

Official Name:

Lead (Atomic Absorption, Direct Aspiration)

Descriptive Name

Lead by Flame AA

Source Info:

U.S.EPA National Exposure Research Laboratory (NERL)
Microbiological and Chemical Exposure Assessment Research Division (MCEARD)
[formerly the Environmental Monitoring Systems Laboratory (EMSL), Cincinnati, OH]
26 West Martin Luther King Drive
Cincinnati, Ohio 45268-0001
Fax: 513-569-7757
email: DWmethods.help@epa.gov

Citation:

Methods for the Chemical Analysis of Water and Wastes (MCAWW) (EPA/600/4-79/020)

12815

Byte file

Brief Method
Summary:

A sample prepared according to EPA Method 200.0 is analyzed using a flame atomic absorption spectrometer. Specifications for instrument operation and preparation of standards are provided in the method.

Scope And
Application:

This method determines lead by flame atomic absorption spectrometry. Sample pretreatment according to EPA Method 200.0 determines the applicability.

Applicable
Conc Range:

1-20 mg/L (optimal range); 0.5 mg/L (sensitivity).

Interferences:

For interferences see EPA Method 200.0. Sensitive to turbulence and absorption bands in the flame. Flame alignment and signal noise must be centered and quieted as much as possible.

QC Requirements:

QC requirements for drinking water procedures are provided in method 200.0

Sample Handling:

Sample handling and preservation procedures are provided in EPA Method 200.0.

Max Holding Time:

6 months (MCAWW, Table 1).

Sample Prep Met

200.0

Relative Cost:

Less than $50

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Method Summary Information