The nitrogen/protein analysis according to Kjeldahl is up to date still the reference method in analytics. With its high degree of versatility, the method is suitable for many applications, e.g. food analysis, feed analysis, soil or water analysis.
In addition to the versatility, the very high precision also speaks for the method. Particularly in case of highly inhomogeneous sample material, there is hardly any alternative to Kjeldahl due to the high weight of the sample.
C. Gerhardt and Benelux Scientific are happy to let you know, that we are holding another Kjeldahl Webinar for you:
KJELDAHL NITROGEN ANALYSIS:
PRINCIPLE AND ANALYTICAL APPROACHES FOR DIFFICULT SAMPLES
18th of October – 11:00 AM – 1:00 PM CEST
The webinar is free of charge for participants and it is live with an extensive Q&A session.
PROGRAM
Principle and analytical approaches for difficult samples
1. Digestion with sulfuric acid and catalyst
- Digestion temperature and digestion time
- Temperature / time profile and power / time profile
- Ratio of sample mass to sulfuric acid volume and catalyst
- Handling of different samples
2. Distillation and titration
- Parameter settings for distillation
- Selection of receiver solution
- Options for titration
- Handling of different samples
3. Quality assurance
- Blank values
- Standards
- Recovery
- Error consideration
- IQ / OQ / PQ
