How to use the digital salinity meter to measure the salinity detection test - Database & Sql Blog Articles

The following is a rewritten and improved version of the provided content in English, with added details to reach over 500 characters. The text has been restructured for clarity, coherence, and natural flow, while maintaining the original intent. ---

Purpose

Chinese traditional diet often includes high salt and high oil intake, which contributes to the high prevalence of hypertension, coronary heart disease, and hyperlipidemia in China. In recent years, the government has promoted healthier eating habits and encouraged people to reduce their salt consumption. As a result, accurate measurement of salt content has become increasingly important.

Two

Physical and Chemical Testing

If the sample is a non-concentrated liquid that can be consumed directly, such as soup or miso broth, it can be placed directly into the sample tank for testing. However, for solid samples like ham, bacon, dried fish, or potato chips, it is necessary to chop them and dilute them 10 times. After about 30 minutes, the salt will dissolve completely, and the liquid portion can then be measured using the instrument.

Salinometer

The measured value should be multiplied by 10 to obtain the actual salinity of the sample. The higher the salinity, the longer it takes for the salt to dissolve. Therefore, it's essential to wait for the proper time before taking a reading.

Concentrated samples such as juices, seasonings, and sauces should be diluted by weight 10 times for more accurate results. The concept of "concentration" applies to items like marinades and pickled foods that cannot be tested directly in the mouth.

Stronger salt samples

The ATAGO concentration meter uses Brix 6.0 or higher as a reference for dilution.

Conductance digital salinity meters: PAL-SALT, ES-421

High precision salinometer

The thicker the sample, the more molecules cluster together, making it harder for ions to release and conduct electricity. This can result in a lower measured value than the actual salinity. Therefore, proper preparation and dilution are crucial for accurate readings.

Three

Salt Concentration

For pickles and other preserved products that exceed the upper limit of the measuring range, dilution is necessary. For example, if the salt content is 12%, diluting it 10 times would bring it down to 1.2%, and diluting it 5 times would bring it to 2.4%. To ensure accurate results, always dilute the sample appropriately.

When there is a large amount of oil in the sample, such as in ramen broth, the measurement may be unstable due to floating grease. In such cases, it’s better to let the sample settle and check using the tip of a chopstick. When measuring salt in oily or salted foods, avoid collecting oil and instead add water to the sample.

Dilute the sample 10 times and mix thoroughly. The displayed value multiplied by 10 gives the original salinity of the sample.

ATAGO (Ai Tuo) Marketing Department (Xuan)