Instruction Video | AQUAMICRON™

This video introduces the five topics mentioned below.

• What is the Karl Fischer reaction?
• Volumetric titration
• Coulometric titration
• Detection method
• How to determine the water content

This video continues from Part 1 and introduces two more topics mentioned below.

• Interferences and countermeasures
• Summary

This video introduces the three topics mentioned below.

• Variation of AQUAMICRON reagents
• Point to keep in mind in the use
• Other supplementary information

This video introduces the two contents mentioned below. It explains guidelines and other information on the use of coulometric and volumetric titrations.

1. 1.General matter
2. 2. Coulometric titration

This video continues from Part 1 and introduces one more contents mentioned below.
It explains volumetric titration in detail.

1. 3.Volumetric titration

This video continues from Part 2 and introduces three contents mentioned below. It also explains optional apparatus and devices, especially the different vaporizers and their features.

1. 4.Sampling
2. 5.Option
3. 6. Other

Dairy products and fat and oil products are containing a lot of moisture, so they are mainly titrated directly using volumetric titration. Normally, a dehydrated solvent for sugars is used, but those which main component is lipids are measured using a dehydrated solvent for fat and oil. When using volumetric titration for fat and oil products, a dehydrated solvent for fat and oil is used for titration. Here we will introduce a method for measuring the moisture content in margarine.

Volumetric titration using a dehydrated solvent specifically designed for sugars is used to measure the moisture content of sugars. If the dissolution rate is slow or difficult, the titration is performed while the titration cell is heated below 45℃.

• ※Note that if the temperature exceeds 45°C, the formamide in the dehydrated solvent for sugars will gradually decompose, and the resulting decomposition products may obscure the titration endpoint. Because sugars are easily decomposed by heat, the moisture evaporation method should be avoided. This video introduces a method for measuring the moisture content of honey.

Since adhesive-related samples have a wide range of moisture content,which are from trace to high, both of volumetric and coulometric titration methods are applied. In volumetric titration, the sample is dissolved or dispersed in a dehydrating solvent suitable for the sample and then titrated. For samples that do not dissolve in various dehydrating solvents, the moisture vaporization method is applied. In coulometric titration, samples that dissolve in a dehydrating solvent are titrated directly, but for samples that do not dissolve, the moisture vaporization method is used. This video introduces a method for measuring the moisture content of adhesives using coulometric titration with a vaporizer.

This video introduces detailed instructions for moisture measurement in highly hygroscopic fine powder samples using coulometric titration with a vaporizer. It explains how to weigh the sample inside a glove bag to prevent moisture absorption, quickly transfer it to a sealed container, and safely and accurately inject the sample into the vaporizer. It provides practical know-how for maintaining measurement accuracy in situations where accurate trace moisture measurement is required.

This video introduces an applied measurement method for powder samples using coulometric titration. In addition to the main equipment, it also introduces practical operations using an electronic balance, platinum powder sampler, spatula, microsyringe, protective gloves and other items. It also provides practical information on how to accurately and reproducibly measure hygroscopic and static-sensitive powder samples.

During the resin molding process, high temperatures are frequently reached, and trace amounts of moisture contained within the resin can cause foaming and, further, thermal decomposition, leading to a decrease in molecular weight and significantly affecting the resin's performance. For this reason, moisture measurement during the drying process of resins which are powder, pellets and so on, is extremely important. Karl Fischer method is ideal for measuring trace amounts of moisture in resins, and the moisture vaporization method allows for relatively quick which takes 10 - 30 minutes and accurate measurement of moisture content. Here, this video introduces a method for measuring the moisture content of PVC boards.

This video introduces the procedure for measuring organic acid salts using coulometric titration with a vaporizer. It provides detailed explanations of the measurement procedure using a vaporizer, moisture measurement using coulometric titration, data confirmation after measurement, and how to set and check the optimal vaporization temperature according to the sample characteristics. It also explains key points for setting the temperature for heat-sensitive samples and how to improve measurement accuracy.

This video introduces a method for accurately measuring moisture in interfering lubricating oils using coulometric titration with a vaporizer. It introduces operating procedures that can be used for samples that are difficult to titrate directly due to vaporization at high temperatures. It also provides practical information such as how to avoid interfering reactions specific to lubricating oils, how to set the optimal vaporization temperature, and how to maintain stable measurement conditions.

Liquefied gases such as propane and butane are injected directly into a dehydrated solvent or electrolyte and measured by volumetric or coulometric titration. Since liquefied petroleum gas generally contains only trace amounts of water, coulometric titration is suitable. To accurately measure the water content of such samples, it is important to collect the sample from the liquid phase when injecting it. This section explains how to measure liquefied gas samples.

This video introduces the preparation for coulometric titration measurements. It explains the entire process, from adding reagents to anhydrous treatment, and provides key points for achieving high accuracy. It also introduces calibration procedures and key points for checking accuracy. Even beginners can easily learn this highly reliable measurement method.

This video introduces the procedure for measuring the moisture content of liquid samples using coulometric titration. It explains the process from collecting the sample with a syringe to injecting it into the cell and starting the measurement. Please use this as a reference for performing highly accurate measurements using appropriate procedures.

This video introduces the procedure for verifying the accuracy of coulometric titration equipment using water standard samples. It also explains how to handle standard samples, which are essential for maintaining measurement accuracy and evaluating the reliability of equipment. Please use this as a reference when verifying accuracy as part of daily inspections and periodic validation.

This video introduces the procedure for measuring the moisture content of liquid samples using a glass capillary pipette with a coulometric titration method equipped with a vaporizer. This section provides reference information on the correct preparation of reagents, dry run procedures to maintain an anhydrous state inside the vaporizer, and the correct method for collecting and injecting samples.

This video introduces the procedure for measuring the moisture content of solid samples using coulometric titration with a vaporizer. It also explains how to weigh and inject solid samples, as well as important points to note when measuring. Please use this as a reference for measuring highly hygroscopic samples or samples with low moisture content with high accuracy.

This video introduces how to directly inject a solid sample into a coulometric cell using a glove bag. By blocking moisture in the air, it is possible to prevent the sample from absorbing moisture, and this can be used as a reference for accurate sample measurement and introduction methods.

This video introduces the entire volumetric titration process, from preparing the reagents to completing the anhydrous volumetric cell. It also provides key points for stable measurements, making it a useful reference for those performing volumetric titration for the first time or those looking to improve accuracy.

This video introduces the procedure for volumetric titration using distilled water. Understanding the exact titration value of the titrant will significantly improve the reliability and accuracy of water content measurements. Please use this as a reference for daily quality control and validation.

This video introduces the weighing and sample injection procedures for solid samples using volumetric titration. It also explains a quick and appropriate weighing method to prevent moisture absorption, and the procedure for injection into a cell using dedicated containers and equipment. This video will be useful for anyone who measures the moisture content of solid samples.

This video introduces the procedure for handling viscous samples using the volumetric titration method, using a spoon-type sealing stopper. It also explains practical procedures for properly collecting, sealing, and injecting highly viscous samples that are difficult to handle with a standard syringe. It also explains how to prevent sample moisture absorption and achieve highly repeatable measurements.

This video introduces how to use glove bags when handling highly hygroscopic samples. It also explains procedures for weighing and injecting samples while protecting them from moisture in the air. This course explains effective handling techniques to ensure good measurement accuracy and repeatability, especially for samples with trace moisture that are easily affected by moisture in the air.

Karl Fischer reagent ampoules should be handled with clean gloves. This video clearly explains how to open them safely. Please take a look as it shows the key points to opening them so that even beginners can work with confidence.