This method can determine the amount of specific metal and metalloid particulates in the workplace atmosphere. Personal air samples are collected on mixed-cellulose ester filters using a calibrated sampling pump. Samples are desorbed or digested using water extractions or mineral acid digestions. Elemental analysis of the prepared sample solutions is performed by atomic absorption or emission spectroscopy. The identification and quantification of the particulate is directly determined as the element.
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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. Filters and cassettes having a 25-mm diameter can also be used. |
| Collection Method: | Mixed cellulose ester (MCE) filters and a calibrated sampling pump at a recommended volume of 480 to 960 L at a sampling rate of 2L/min. |
| Analytical Methodology: | Atomic Absorption or Emission Spectroscopy. |
| Documentation: | 
ID-121
|
| Analyte | Formula | CAS Number | Detection Limit | |
|---|---|---|---|---|
| Tellurium | Te |
13494-80-9 |
0.2 |
µg/mL |
| Aluminum | Al |
7429-90-5 |
0.3 |
µg/mL |
| Iron | Fe |
7439-89-6 |
0.03 |
µg/mL |
| Lead | Pb |
7439-92-1 |
0.05 |
µg/mL |
| Lithium | Li |
7439-93-2 |
0.004 |
µg/mL |
| Magnesium | Mg |
7439-95-4 |
0.01 |
µg/mL |
| Manganese | Mn |
7439-96-5 |
0.01 |
µg/mL |
| Molybdenum | Mo |
7439-98-7 |
0.04 |
µg/mL |
| Nickel | Ni |
7440-02-0 |
0.1 |
µg/mL |
| Platinum | Pt |
7440-06-4 |
2 |
µg/mL |
| Potassium | K |
7440-09-7 |
0.02 |
µg/mL |
| Silver | Ag |
7440-22-4 |
0.005 |
µg/mL |
| Sodium | Na |
7440-23-5 |
0.009 |
µg/mL |
| Thallium | Tl |
7440-28-0 |
0.05 |
µg/mL |
| Tin | Sn |
7440-31-5 |
0.1 |
µg/mL |
| Titanium | Ti |
7440-32-6 |
||
| Antimony | Sb |
7440-36-0 |
0.1 |
µg/mL |
| Barium | Ba |
7440-39-3 |
0.5 |
µg/mL |
| Cadmium | Cd |
7440-43-9 |
0.004 |
µg/mL |
| Cesium | Cs |
7440-46-2 |
||
| Chromium | Cr |
7440-47-3 |
0.04 |
µg/mL |
| Cobalt | Co |
7440-48-4 |
0.04 |
µg/mL |
| Copper | Cu |
7440-50-8 |
0.005 |
µg/mL |
| Gold | Au |
7440-57-5 |
0.05 |
µg/mL |
| Hafnium | Hf |
7440-58-6 |
||
| Yttrium | Y |
7440-65-5 |
0.7 |
µg/mL |
| Zinc | Zn |
7440-66-6 |
0.01 |
µg/mL |
| Zirconium | Zr |
7440-67-7 |
8 |
µg/mL |
| Bismuth | Bi |
7440-69-9 |
0.2 |
µg/mL |
| Calcium | Ca |
7440-70-2 |
0.03 |
µg/mL |
| Indium | In |
7440-74-6 |
0.1 |
µg/mL |
| Selenium | Se |
7782-49-2 |
0.3 |
µg/mL |
* 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.