Fully automatic Kjeldahl nitrogen analyzer distillation device

Product Introduction

The Kjeldahl nitrogen analyzer uses the Kjeldahl method to detect grains, food, feed, water, soil, sludge, and other substancessedimentAnd the ammonia, protein nitrogen content, phenolVolatile fatty acids、sulfur dioxide、ethanolEqual content. Has a fairly good cost performance ratio, only requires titration processManual operationBelow, very suitable for laboratories andinspection agencyRoutine testing. Widely used for nitrogen or protein content analysis of samples such as food, crops, seeds, soil, fertilizers, etc.

Translate into Englishorganic compoundHeat with sulfuric acid to convert nitrogen intoammonium sulfateIn this step, it is often added to the mixture硫酸钾To improveintermediate productThe boiling point. sampleanalysis processThe endpoint is easy to determine because at this point, the mixture will become colorless and transparent (initially very dark)

Add a small amount to the obtained solutionsodium hydroxideThen distill. This step willammonium saltConverted into ammonia. And the total ammonia content (directly determined by the nitrogen content of the sample) will be determined by the reversetitrationdetermine:condenser tubeThe end will be immersed inBoric acid solutionIn the middle. Ammonia will react with acid, while excess acid willMethyl OrangeUnder the instructions, usesodium carbonateTitration. The result obtained from titration multiplied by a specific factorconversion factorYou can get the result.

Product Details