This method is applicable to the analysis of a broad range of suspended particulate matter (SPM) for metals using energy dispersive X-ray fluorescence (XRF). The XRF method provides analytical procedures for determining concentrations in ng/m³ for 44 elements that may be captured on typical filter materials used in fine particle or dichotomous sampling devices.
A 37 or 47mm Teflon® or Nuclepore® filter is used for sample collection. A thin membrane filter is required opposed to a quartz or glass fiber filter because they have low background levels and the penetration of particles into the matrix is minimal.
Samples are collected using a dichotomous sampler following the procedures in Compendium Method IO-2.2. A dichotomous sampler is able to separate fine and coarse particles. Fine particles are defined those with aerodynamic diameters from 0-2.5um. Coarse particles are defined as those with aerodynamic diameters of 2.5-10.0um. The collection method specifies a low-flow collection rate of 16.7L/min.
Once the sample is collected, it is returned to the laboratory for analysis in the filter holder in an envelope and protected from being bent or torn. The sample is then analyzed using XRF.
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| Hold Times, Preservatives, Preps, Collection, Analytical & Documentation | |
|---|---|
| Holding Time: | None specified in method. |
| Preservatives: | None specified in method. |
| Required Preps: | 37 or 47mm Teflon filter |
| Collection Method: | Dichotomous sampler following Compendium Method IO-2.2 procedures. |
| Analytical Methodology: | Energy dispersive X-ray fluorescence (XRF)spectrometry |
| Documentation: | 
IO-3.3
|
| Analyte | Formula | CAS Number | Detection Limit | |
|---|---|---|---|---|
| Tellurium | Te |
13494-80-9 |
7.91 |
ng/m3 |
| Aluminum | Al |
7429-90-5 |
5.29 |
ng/m3 |
| Iron | Fe |
7439-89-6 |
0.21 |
ng/m3 |
| Lanthanum | La |
7439-91-0 |
2.12 |
ng/m3 |
| Lead | Pb |
7439-92-1 |
0.45 |
ng/m3 |
| Magnesium | Mg |
7439-95-4 |
0.96 |
ng/m3 |
| Manganese | Mn |
7439-96-5 |
0.24 |
ng/m3 |
| Molybdenum | Mo |
7439-98-7 |
0.48 |
ng/m3 |
| Nickel | Ni |
7440-02-0 |
0.18 |
ng/m3 |
| Palladium | Pd |
7440-05-3 |
6.89 |
ng/m3 |
| Potassium | K |
7440-09-7 |
1.89 |
ng/m3 |
| Rhodium | Rh |
7440-16-6 |
7.79 |
ng/m3 |
| Rubidium | Rb |
7440-17-7 |
0.21 |
ng/m3 |
| Scandium | Sc |
7440-20-2 |
0.45 |
ng/m3 |
| Silicon | Si |
7440-21-3 |
2.41 |
ng/m3 |
| Silver | Ag |
7440-22-4 |
6.02 |
ng/m3 |
| Sodium | Na |
7440-23-5 |
1.59 |
ng/m3 |
| Strontium | Sr |
7440-24-6 |
0.33 |
ng/m3 |
| Tin | Sn |
7440-31-5 |
9.18 |
ng/m3 |
| Titanium | Ti |
7440-32-6 |
5.08 |
ng/m3 |
| Tungsten | W |
7440-33-7 |
10.23 |
ng/m3 |
| Antimony | Sb |
7440-36-0 |
9.45 |
ng/m3 |
| Arsenic | As |
7440-38-2 |
0.24 |
ng/m3 |
| Barium | Ba |
7440-39-3 |
15.59 |
ng/m3 |
| Cadmium | Cd |
7440-43-9 |
6.62 |
ng/m3 |
| Cesium | Cs |
7440-46-2 |
14.62 |
ng/m3 |
| Chromium | Cr |
7440-47-3 |
0.9 |
ng/m3 |
| Cobalt | Co |
7440-48-4 |
0.12 |
ng/m3 |
| Copper | Cu |
7440-50-8 |
0.21 |
ng/m3 |
| Gallium | Ga |
7440-55-3 |
0.48 |
ng/m3 |
| Germanium | Ge |
7440-56-4 |
0.33 |
ng/m3 |
| Gold | Au |
7440-57-5 |
0.51 |
ng/m3 |
| Vanadium | V |
7440-62-2 |
1.59 |
ng/m3 |
| Yttrium | Y |
7440-65-5 |
0.36 |
ng/m3 |
| Zinc | Zn |
7440-66-6 |
0.3 |
ng/m3 |
| Zirconium | Zr |
7440-67-7 |
0.36 |
ng/m3 |
| Calcium | Ca |
7440-70-2 |
2.71 |
ng/m3 |
| Iodine | I2 |
7553-56-2 |
10.68 |
ng/m3 |
| Sulfur | S |
7704-34-9 |
0.78 |
ng/m3 |
| Phosphorus | P |
7723-14-0 |
0.78 |
ng/m3 |
| Bromine | Br2 |
7726-95-6 |
0.18 |
ng/m3 |
| Selenium | Se |
7782-49-2 |
0.21 |
ng/m3 |
| Chlorine | Cl2 |
7782-50-5 |
1.44 |
ng/m3 |
* 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.