
The laboratory is dedicated to the quantitative determination of total, organic and inorganic carbon contents in geological materials. Analyses are performed using a Ströhlein C-MAT 5500 automatic infrared detector.
Methodology.
- Approximately 0.05 g of sample (pulverized and dried at 110°C) is continuously burned down in the oxygen atmosphere at the temperature range 50 – 1000°C. The CO2 produced during combustion is detected by the C-MAT 5500 infrared detector and obtained values and converted to total carbon content (TC).
- Another split of sample is treated with hot HCl in order to dissolve carbonates. The insoluble residue is analyzed again to obtain total organic carbon content (TOC).
- The total inorganic carbon (TIC) is calculated as follows: TIC = TC – TOC.
The accuracy of measurements is controlled with world standards. Standard deviations determined for different carbon content intervals are as follows:
Interval of C content in wt. % |
Standard deviation (wt. %) |
0 - 1 |
0.08 |
1 - 3 |
0.07 |
3 - 10 |
0.10 |
10 - 16 |
0.22 |
16 - 100 |
2.28 |
Contact person:
+421 48 321 3211
ks.b1656210723bvas@1656210723norib1656210723
Laboratory staff:
Alžbeta Svitáčová
Stanislava Budačová
Workplace:
Banská Bystrica, Ďumbierska 1, Geological Division