La teneur en solides fait référence au pourcentage ou à la fraction massique de matière solide contenue dans un liquide.. It is a measure that describes the concentration or content of solids in a liquid. Solid content is often used to describe the content of solid substances in various liquid systems such as solutions, suspensions, emulsions and colloids.

The formula for calculating solid content is:

Du contenu solide (%) = (masse solide/masse totale) X 100

Parmi eux, the solid mass refers to the mass of the solid substance contained in the liquid, and the total mass refers to the total mass of the liquid (including the mass of the solid substance and the mass of the solvent or medium).

Méthode de détermination du contenu solide

The method of determination of solid content varies according to the properties of liquid and solid substance. Les méthodes courantes de détermination du contenu solide incluent la méthode de pesée, méthode de séchage, méthode de filtration, centrifugal method, etc.. La méthode de détermination spécifique doit être sélectionnée en fonction du système liquide et des exigences expérimentales. The determination of solid content is very important for the production and quality control of liquid system. Dans divers domaines industriels, comme les produits chimiques, nourriture, pharmaceutique, textile, etc., solid content measurement is often used to monitor and adjust the composition and nature of products, to ensure product quality and production effect.

Méthode de séchage: The liquid sample to be tested is placed in a pre-weighed container, et le solvant présent dans le liquide est évaporé ou volatilisé par chauffage ou séchage sous vide, leaving solid material. Then weigh the solid substance and calculate the solid content.

Centrifugation: Separating suspended particles or precipitates from liquids by centrifugation, and then drying and weighing the separated solids. The solid content is calculated according to the mass of the solid substance and the total mass of the liquid sample.

Méthode de filtration: Filter paper or microporous membrane is used to filter liquid samples, and solid particles or sediments are captured on the filter medium. The filter medium is then dried with the solid material and its mass is weighed. Solid content is calculated by comparing the mass of the solid substance with the total mass of the liquid sample.

Méthode de détermination du contenu solide

Post-dissolution determination method: l'échantillon liquide à tester est complètement dissous, and appropriate analytical methods (comme la spectroscopie, colorimétrie, densité spécifique, etc.) are used to determine the concentration or content of solid substances in the solution. Solid content is then calculated based on the concentration of the solid substance and the total volume or mass of the liquid sample.

Méthode de détermination du contenu solide

Étapes de fonctionnement de base:
Méthode de séchage:

un. Préparez-vous à peser le conteneur et enregistrez la masse du conteneur.

b. Transfer the liquid sample to the container.

c. Use a heating device or a vacuum dryer to evaporate or volatilize the solvent in the liquid sample, leaving behind the solid material.

d. Place the container in the dryer with the solid substance and allow it to dry completely. e. Weigh the dried containers and solids and record the mass value.

F. Calculate solid content based on the mass of solid substance and the total mass of liquid sample.

Méthode centrifuge:

un. Préparez le tube à centrifuger ou la centrifugeuse et enregistrez sa masse.

b. Pour the liquid sample to be measured into the centrifuge tube.

c. Use a centrifuge to centrifuge liquid samples and separate solid particles or sediments.

d. Transfer the solid material obtained by centrifugation to a drying container.

e. Place the container in the dryer with the solid substance and allow it to dry completely.

F. Weigh the dried containers and solids and record the mass value. g. Calculate solid content based on the mass of solid substance and the total mass of liquid sample.

Méthode de filtration:

un. Préparez le dispositif de filtrage, including filter paper or microporous film, entonnoir filtrant, etc..

b. Pour the liquid sample to be tested into the filter funnel and filter the liquid through the filter paper or microporous membrane.

c. Leave solid particles or sediment on the filter paper or microporous film.

d. Transfer the filter paper or microporous film and solid material to the drying container.

e. Place the container in the dryer with the solid substance and allow it to dry completely. F. Weigh the dried containers and solids and record the mass value.

g. Calculate solid content based on the mass of solid substance and the total mass of liquid sample.

Post-dissolution method:

un. Prepare an appropriate solvent and completely dissolve the liquid sample to be tested.

b. According to the determination requirements, select appropriate analytical methods, comme la spectroscopie, méthode colorimétrique, specific gravity method, etc., pour déterminer la concentration ou la teneur en substances solides dans la solution.

c. Record the determination results, y compris la concentration de la substance solide et le volume ou la masse total de l'échantillon liquide.

d. Calculer la teneur en solides en fonction de la concentration et du volume ou de la masse total.

Ce qui précède sont les étapes de fonctionnement de base, specific operation should be according to the experimental requirements and methods to select appropriate instruments and reagents, and in accordance with the relevant operating procedures and standards for operation. La méthode de détermination de la teneur en solides doit être sélectionnée en fonction des caractéristiques spécifiques de l'échantillon et des exigences de mesure.. Different methods are applicable to different types of solid material and liquid samples. When determining solid content, les procédures et normes opérationnelles correspondantes doivent être suivies pour garantir l'exactitude et la répétabilité des résultats de mesure.