NEMI Method Summary

Method Summary Information

Method Number: 3111B Media: WATER
Revision: Standard Methods Online
Method Source: Standard Methods
Subcategory: INORGANIC Analytes in this method
Official Name: Direct Air-Acetylene Flame Method
Descriptive Name Direct Air-Acetylene Flame Method
Source Info: Standard Methods Online is jointly produced by the American Public Health Association (APHA), the American Water Works Association (AWWA), and the Water Environment Federation (WEF).
These organizations may be contacted by phone for more information on Standard Methods Online:
APHA: (301) 893-1894
AWWA: (800) 926-7337, (1-303-794-7711, outside U.S. / Canada)
WEF: (800) 666-0206 (1-703-684-2452 outside U.S. / Canada)
Citation: Standard Methods Online
 
Brief Method
Summary:
 In flame atomic absorption spectrometry, a sample is aspirated into a flame and atomized. A light beam is directed through the flame, into a monochromator, and onto a detector that measures the amount of light absorbed by the atomized element in the flame.
Scope And
Application:
 This method is applicable to the determination of antimony, bismuth, cadmium, calcium, cesium, chromium, cobalt, copper, gold, iridium, iron, lead, lithium, magnesium, manganese, nickel, palladium, platinum, potassium, rhodium, ruthenium, silver, sodium, strontium, thallium, tin, and zinc.
Applicable
Conc Range:
Interferences: Most troublesome type of interference is termed "chemical" and results from the lack of absorption by atoms bound in molecular combination in the flame.
QC Requirements: To one sample out of every ten add a known amount of the metal of interest and reanalyze to confirm recovery. Analyze an additional standard solution after every ten samples or with a batch of samples, whichever is less, to confirm that the test is in control.
Sample Handling: For dissolved metals, filter immediately, add HNO3 to pH < 2
If dissolved metals are to be determined, see 3030B for sample preparation. If total or acid-extractable metals are to be determined, see 3030C through 3030K.
Max Holding Time:
 6 months
Sample Prep Met 3030B - 3030K
Relative Cost: $201 to $400
URL to obtain ordering information for this method:
http://www.standardmethods.org/
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