EPA Method 213.1


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EPA Method 213.1:
Cadmium by Flame AA. Official Name: Cadmium (Atomic Absorption, Direct Aspiration)

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.

Scope:
This method determines cadmium by flame atomic absorption spectrometry. Samples pretreatment according to EPA Method 200.0 determines the applicability.

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

Interferences:
For additional interferences see EPA Method 200.0.

QC Requirements:
QC requirements for drinking water procedures are provided in method 200.0

Maximum Holding Time:
6 months (MCAWW, Table 1).

Media:
WATER

Subcategory:
Inorganic

Concentration:
50 - 2,000 ug/L (optimal range); 25 ug/L (sensitivity).

Sample Prep:
200

Precision:
Precision and accuracy values were calculated using data from a 73 laboratory study that analyzed fortified natural water samples. Additional data are available in the method.

Detection:
-

Revision Number:
Issued 1971; Editorial Revision 1974

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Examples:  8260
TO-15

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Mercury
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