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View Actual EPA Method 235.1 (PDF File)
EPA Method 235.1:Iridium by Flame AA. Official Name: Iridium (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 in the method.
Scope:This method determines iridium by flame atomic absorption spectrometry. Sample 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 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:20-500 mg/L (optimal range); 8 mg/L (sensitivity).
Sample Prep:200
Precision:Precision and accuracy data are not available.
Detection:The DL is to be considered the minimum working limit achievable with this method.
Revision Number:Issued 1976; Technical Revision 1978