Protein determination for liquid and solid samples with LECO after the principle of Dumas can be very easy and convenient. LECO has the perfect solution with the 828 and the 928 product line. By integrating state-of-the-art hardware with intuitive, operator-focused software, the LECO 828 and 928 SERIES of instruments are able to analyse a wide variety of sample matrices. All of the advantages of prior LECO models have been optimized, giving your lab the highest reliability, throughput, and ease of use.

With short analysis times as fast as 2.8 minutes for some models, the 828 and 928 series are the perfect solutions for your analytical tasks. Whether your samples are macro or micro, needing a horizontal furnace or a vertical one, these instruments have a solution for you.


Check out our product portfolio for analysis
of liquid and solid samples:

928 Series Macro Determinator
Carbon/Nitrogen/Sulfur and Nitrogen/Protein Analysis by Combustion

828 Series
Carbon/Hydrogen/Nitrogen/Protein Determinator


828 Series | 928 Series


Easy Sample Preparation

Which option ever you choose, sample introduction is always the same. Just drop them into your combustion boat (928) or your tin capsule (828). No need to seal anything or use special agents or drying chemicals.

LECO Sample Container Boats | Nickel Combustion | Ceramic Combustion Boat with Nickel Boat Liner | Ceramic Combustion


Protein Analysis Library & Publications

Learn more about our solutions for protein analysis with our Application Notes and videos.

On-demand video

Preview image webinar video
Kjeldahl Vs. Dumas Webinar
Our latest online presentation on protein analysis is now available as an on-demand session. You can easily request the video of the webinar by clicking here.


eFoodLab article on food and feed analysis, issue 03-2023

EFoodLab Article | Food and Non-Food Testing [...]

eFoodLab debate with Monika Partyka (R&D Director) and Monika Czarnecka (PL Food Lab Manager) from i2 Analytical in Poland about providing pesticides, microbiology, contaminants, and nutritional testing for the food and allied industries.

Read the full article

Blog Post | Protein-Rich Pet Food

Novel protein approaches, such as carp liver or insect larva, are received more easily by animals, but it's still important to understand how these different sources affect the dietary values of pet food. One efficient way to analyse protein is with a nitrogen/protein determinator like LECO's FP828.
Read the Blog Post related to protein analysis and download the latest App Note which compares pet food and feed samples run on the FP828 using both helium and argon carrier gases.

View blog post

Pet food and feed, Protein analysis

Let LECO help you find the right instruments for your needs.


Virtual Trade Show

If you want to learn more about our products and solutions for protein analysis, book a free ticket to our Virtual Trade Show, or schedule an online demo for a deeper insight in our instruments.