CHNS Microanalyzer
It allows the analysis of the total content of carbon, hydrogen, nitrogen and sulfur (C, H, N, S) present in a wide range of samples. The analytical method is based on the complete and instantaneous oxidation of the sample by a “flash” combustion that converts all organic and inorganic compounds into combustion products.
The gases resulting from combustion are reduced and subsequently transported, using the carrier gas (He), to a chromatographic column. In this, the different gases are separated, which finally pass through a thermal conductivity detector (TCD) that gives a signal proportional to the concentration of each of the individual components of the mixture.
The analyzer has a measurement range from 100 ppm to 100% of each element, with a detection limit of 10 ppm. In about 12 minutes, the C, N, H, and S content of a sample can be analyzed.
Instrumental Facilities
- Thermo Flash Smart CHNS Elemental Analyzer
- 32-position autosampler
Applications
Organic and inorganic samples:
- Synthesis samples
- Cosmetics
- Pharmaceuticals
- Soils
- Oils
- Fuels
- Plastics
- Sludges
- Waste
- Feed
- Flours
- Vegetables
Sample requirements
- Samples may be solid or liquid (oils)
- Solid samples must be completely dry to avoid errors due to the presence of solvents or moisture.
- Homogeneous and representative of the material
- Stables
- In the case of unground samples, grinding will be marked on the Service Request.
- The amount of sample required for each analysis is:
- You only need: 10 mg
- Other samples 2 mg
- Maximum number of samples per request: 20
- In the case of samples containing fluorine or mercury, the estimated percentage for these elements will be indicated in the service request.
- In those cases where more than one replicate is desired, the amount of sample necessary for each analysis will be indicated in the request and sent.
- Samples must be sent in perfectly sealed vials or plastic bags along with the corresponding service request.
- Users who wish to do so will have a period of one month to collect the samples measured in the service.
More information
Jorge Millos – Jesús Estévez – Estefanía López
+34 986 812 238 – 986 813 885