# Kjeldahl Optimizer

> Kjeldahl method nitrogen determination parameter calculator for lab analysis. (iPhone/iPad app by BÜCHI Labortechnik AG.)

- Source: https://appshunter.io/ios/app/kjeldahl-optimizer/id581278801 (this page in markdown: same URL + `.md`)
- Developer: [BÜCHI Labortechnik AG](https://appshunter.io/developer/580108901)
- Category: Education, Business
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 8.4 · 32 MB
- Languages: American English
- Released: 2012-12-10
- Data updated: 2026-06-24
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/kjeldahl-optimizer/id581278801/reviews.md

## What is Kjeldahl Optimizer?

Calculate optimized digestion and distillation parameters for the nitrogen determination according to Kjeldahl. The calculator outputs the following digestion parameters:
• Number of Kjeldahl Tablets (or weight of powder)
• Volume of sulfuric acid
Distillation parameters
• Volume of water for dilution
• Volume of sodium hydroxide for alkalization
Titration parameters
• Titrant consumption for blanks
• Titrant consumption for the sample
• Calculated nitrogen amount per sample tube
It also contains helpful information to other parameters such as the digestion and distillation time, pH and volume of the boric acid and the steam power.
The calculation is based on manifold process inputs. Tables, graphs, tips and literature references help to understand the theoretical background but also the practical consequences of the following actions:
• Boric acid concentration
• Sample tube size
• Type of distillation (direct vs. standard Kjeldahl)
• Type of catalyst (Tablet type vs. powder)
• Titrant normality
• Sample type and amount

## Key features

- Optimized digestion parameter calculation
- Distillation parameter calculation
- Titration parameter calculation
- Nitrogen amount per sample tube
- Information on digestion/distillation time
- Guidance on boric acid concentration
- Catalyst type selection


## Frequently asked questions about Kjeldahl Optimizer

### What parameters does Kjeldahl Optimizer calculate?

Kjeldahl Optimizer calculates digestion parameters like the number of Kjeldahl tablets, volume of sulfuric acid, and distillation parameters including water and sodium hydroxide volumes. It also provides titration parameters such as titrant consumption and calculated nitrogen amount per sample tube.

### What helpful information is included in Kjeldahl Optimizer?

The app offers helpful information on parameters like digestion and distillation time, pH, boric acid volume, and steam power. It also includes tables, graphs, tips, and literature references to explain theoretical backgrounds and practical consequences.

### What factors can be adjusted or considered within Kjeldahl Optimizer?

Users can consider factors such as boric acid concentration, sample tube size, type of distillation (direct vs. standard Kjeldahl), type of catalyst, titrant normality, and sample type and amount when using Kjeldahl Optimizer.

### Is Kjeldahl Optimizer suitable for beginners?

Yes, the app provides theoretical background and practical consequences through its included resources, making it beneficial for users learning the Kjeldahl method.

### What is the update frequency of Kjeldahl Optimizer?

Kjeldahl Optimizer was last updated on September 25, 2015, with version 2.0. This indicates a less frequent update cycle for the application.

### What devices support Kjeldahl Optimizer?

Kjeldahl Optimizer is supported on iPhone, iPad, and iPod devices, making it accessible for users within the Apple ecosystem.

### What is the age rating for Kjeldahl Optimizer?

Kjeldahl Optimizer has an age rating of 4+, suggesting it is suitable for a wide range of users, including younger individuals, due to its educational and scientific nature.

### Does Kjeldahl Optimizer have ads?

No, Kjeldahl Optimizer does not contain advertisements, providing an uninterrupted user experience for its calculations and information.

## Version history (last 2 releases)

### 2.0 — 2015-09-25

This app has been updated by Apple to display the Apple Watch app icon.

Version 2.0
• Integration of the “Kjeldahl Guide” and best@buchi’s to provide more theoretical and practical background if needed.
• Selection of various digestion and distillation types
• Carbohydrate content can be added.
• Integrated Wizard for an easy selection of the optimal Kjeldahl Tablet.
• Compatible with iOS 8/9

### 1.0 — 2012-12-05

No release notes.

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All apps by BÜCHI Labortechnik AG: https://appshunter.io/developer/580108901

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-24.*