BUCHI’s solutions for proximate analysis of animal feedstuffs are developed to provide a top level, very broad classification of feed components for legislative purposes. Four standard constituents can easily be obtained via chemical reactions and experiments by BUCHI, and are an inexpensive way to track deviations from the quality and composition of feed and feed ingredients.
| Extraction | Kjeldahl | NIR | Incineration | |
| Picture |  |
 |
 |
 |
| Analyte | Fat | Protein and Nitrogen | Fat, Protein, Salt, Ash | Ash |
| Analytical method | Soxhlet (reference) | Kjeldahl (reference) | Screening (indirect) | Ashing |
| Limit of detection (LOD) | 10 mg | 0.02 mg N | 0.10% | - |
| Throughput in 9 hours | 18 samples | up to 120 samples | ~190 samples | 12 |
| Application overview | Applications Extraction | Applications Kjeldahl | Applications NIR | |
| Case studies | Kjeldahl customers |