Aplicações

The potentiometric titration of Kjeldahl nitrogen is one of the most common analytic procedures. It is referenced in numerous standards, ranging from the food and animal feed industries through sewage and waste analysis and all the way to the fertilizer industry. As a rule, the samples are digested with concentrated sulfuric acid with the addition of a catalyst. The ammonium sulfate that is formed is distilled as ammonia in alkali solution, collected in an absorption solution and titrated there. This Bulletin provides a detailed description of potentiometric nitrogen determination following distillation of the digestion solution, followed by a discussion of the possibilities of coulometric titration (without distillation).

NIR spectroscopy enables fast, reagent-free analysis of fat, moisture, protein, fiber, ash, and starch in animal feed, streamlining quality control with no sample prep.

This study shows how a pre-calibrated NIRS instrument is used for multiparameter analysis of several pet food quality indicators like protein, moisture, fat, and ash.

NIR spectroscopy enables fast, reliable analysis of key quality parameters in alfalfa forage (e.g., protein, fiber, and moisture) without any sample preparation.

A farinha de peixe é um ingrediente de ração rico em nutrientes, cuja análise exige a determinação de parâmetros como proteína, gordura, fibra, umidade e teor de cinzas. Esta Nota de Aplicação demonstra a viabilidade do uso da espectroscopia no infravermelho próximo (NIRS) para a análise multiparamétrica rápida de farinha de peixe, sem o uso de reagentes químicos. O NIRS entrega resultados em segundos, reduzindo custos, melhorando a segurança no laboratório e aumentando a produtividade de amostras em comparação com os métodos convencionais de química úmida, que podem levar horas para serem executados.

Determination of fumarate, lactate, formate, and propionate in animal food using ion-exclusion chromatography with suppressed conductivity detection.