S, P, K, Ca, Si, Cl, Mn, Fe, Ti and Sr determination in coal
The test method specifies mass content determination of Si (Silicon), P (Phosphorus), S (Sulfur), Cl (Chlorine), K (Potassium), Ca (Calcium), Ti (Titanium), Mn (Manganese), Fe (Iron) and Sr (Strontium) in powder coal samples by X-Ray fluorescence method with “SPECTROSCAN MAKC” spectrometers.
The analysis procedure includes two measurements of the same material sample prepared for analysis. The sample material is dried and grinded to the particle size of 50 micron.
The sample material is pressed into a pellet in a boron acid cup.
Boron acid cup is pressed out with a shaped punch being at least 3 mm deep. Sample material is put into the cup and pressed with a flat punch into a pellet. The pellet put into the sample holder and then into spectrometer. Analysis is carried out automatically according to the chosen program. The program can determine all elements (oxides) listed in the test method or some of those elements by choice.
Mass content determination of all elements is obtained from one sample.
The sample material is pressed into a pellet in a boron acid cup.
Boron acid cup is pressed out with a shaped punch being at least 3 mm deep. Sample material is put into the cup and pressed with a flat punch into a pellet. The pellet put into the sample holder and then into spectrometer. Analysis is carried out automatically according to the chosen program. The program can determine all elements (oxides) listed in the test method or some of those elements by choice.
Mass content determination of all elements is obtained from one sample.
Measurement range
Mass content range of the oxides specified in the test method is given in the table below.
| Determined component | Element mass content, % |
| S | 0,20 – 0,40 |
| P | 0,01 – 0,050 |
| K | 0,10 – 0,40 |
| Ca | 0,50 – 0,60 |
| Si | 1,75 – 4,8 |
| Cl | 0,040 – 0,15 |
| Mn | 0,0025- 0,015 |
| Fe | 0,50 – 0,93 |
| Ti | 0,04 – 0,09 |
| Sr | 0,003 – 0,015 |