This method describes the collection and subsequent analysis of airborne metal and metalloid particulate by Inductively Coupled Argon Plasma-Atomic Emission Spectroscopy (ICAP-AES). This method provides rapid simultaneous analysis and data reduction for a wide range of elements, eliminating the necessity of separate analyses by conventional atomic absorption techniques. A calibrated personal sampling pump is used to draw a known volume of air through a mixed-cellulose ester membrane filter contained in a styrene cassette. Filters are digested with sulfuric acid and hydrogen peroxide. Dissolution of the elements is facilitated by addition of hydrochloric acid. Analysis is performed using Inductively Coupled Argon Plasma-Atomic Emission Spectroscopy (ICAP-AES).
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| Hold Times, Preservatives, Preps, Collection, Analytical & Documentation | |
|---|---|
| Holding Time: | Not noted in method |
| Preservatives: | Not noted in method |
| Required Preps: | Mixed cellulose ester (MCE) filters (0.8-µm pore size), cellulose backup pads, and cassettes, 37-mm diameter. Cassettes, filters (MCE) and backup pads of 25-mm diameter can also be used. |
| Collection Method: | Mixed cellulose ester filters: ~480L @ 2L/min. |
| Analytical Methodology: | Inductively Coupled Argon Plasma-Atomic Emission Spectroscopy (ICAP-AES). |
| Documentation: | 
ID-125G
|
| Analyte | Formula | CAS Number | Detection Limit | |
|---|---|---|---|---|
| Aluminum | Al |
7429-90-5 |
23 |
µg |
| Iron | Fe |
7439-89-6 |
30 |
µg |
| Lead | Pb |
7439-92-1 |
7 |
µg |
| Magnesium | Mg |
7439-95-4 |
7.1 |
µg |
| Manganese | Mn |
7439-96-5 |
0.2 |
µg |
| Molybdenum | Mo |
7439-98-7 |
1.7 |
µg |
| Nickel | Ni |
7440-02-0 |
2 |
µg |
| Silicon | Si |
7440-21-3 |
8.1 |
µg |
| Silver | Ag |
7440-22-4 |
3.8 |
µg |
| Tin | Sn |
7440-31-5 |
12 |
µg |
| Antimony | Sb |
7440-36-0 |
14 |
µg |
| Arsenic | As |
7440-38-2 |
5.7 |
µg |
| Beryllium | Be |
7440-41-7 |
0.043 |
µg |
| Cadmium | Cd |
7440-43-9 |
0.47 |
µg |
| Chromium | Cr |
7440-47-3 |
1.3 |
µg |
| Cobalt | Co |
7440-48-4 |
4 |
µg |
| Copper | Cu |
7440-50-8 |
2.1 |
µg |
| Vanadium | V |
7440-62-2 |
1.9 |
µg |
| Zinc | Zn |
7440-66-6 |
0.47 |
µg |
| Calcium | Ca |
7440-70-2 |
2.6 |
µg |
| Selenium | Se |
7782-49-2 |
11 |
µg |
* The analytes and detection limits listed for each method represent the typical detection limits and analytes reported for that particular method. Keep in mind that analyte lists may vary from laboratory to laboratory. Detection limits may also vary from lab to lab and are dependent upon the sample size, matrix, and any interferences that may be present in the sample.