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 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


Learn more about and read our various Application Notes:

In the following, you are going to find a collection of App Notes related to protein analysis. Please click on the links to view them.

FP928 | Determination of Nitrogen/Protein in Juices
FP828 | Determination of Nitrogen/Protein in Beer>
FP928 | Determination of Nitrogen/Protein in Beer
FP828 | Determination of Nitrogen/Protein in Milk and Milk Products
FP828 | Nitrogen/Protein in Flour
FP828 | Nitrogen/Protein in Grains, Feeds, Pet
FP828 | Nitrogen/Protein in Soybean Meal
FP928 | Nitrogen/Protein in Meat

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 need.


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.