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Kjeldahl Without Boric Acid? Discover the Benefits of Back Titration

About this event

For decades, boric acid has been an essential component of Kjeldahl nitrogen determination, providing a reliable and convenient way to capture ammonia during distillation. However, changes to European chemical classification regulations have raised new questions about its continued use in laboratories.

With boric acid now subject to stricter classification requirements under the EU CLP Regulation, many laboratories are looking for alternatives that maintain analytical accuracy while reducing the use of hazardous chemicals. 

But is it possible to perform Kjeldahl analysis without boric acid? 

In this webinar, we will explore the principles of traditional Kjeldahl titration, explain the regulatory developments affecting boric acid, and introduce back titration as an established, reliable alternative. 

We will examine how back titration works, its advantages and practical considerations, and how laboratories can transition to boric acid-free nitrogen determination using modern automated Kjeldahl systems. 

What you will learn: 

  • Why boric acid is traditionally used in Kjeldahl analysis 
  • How recent regulatory changes affect its classification and laboratory use 
  • Why simply replacing boric acid with water is not a reliable alternative 
  • How back titration works and how it compares with conventional titration 
  • The benefits, limitations, and practical requirements of switching to back titration 
  • How modern BÜCHI Kjeldahl systems support automated back titration 

Who should attend? 

Laboratory managers, analytical chemists, quality and safety professionals, and anyone interested in Kjeldahl nitrogen or protein determination. 

Join us to discover how an established analytical technique can help prepare your Kjeldahl laboratory for future requirements.

Hosted by

  • Team member
    T
    Massimo Cocchia Business Development Manager Kjeldahl & Extraction Solutions @ BÜCHI Labortechnik AG

    BS in Molecular Biology and a master’s in marketing, with a broad expertise, from the Human Genome in the USA, where I worked on groundbreaking research, to a successful career in capital instrument sales in Europe spanning from chemistry, biosensors, imaging, and molecular diagnostics.

  • Team member
    SA T
    Sebastian Appel

BUCHI Laboratory Equipment

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