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Method for quickly detecting content of sodium content in juice and beverage

A technology for rapid determination of sodium ions, applied in the direction of material excitation analysis, thermal excitation analysis, etc., can solve the problems of inability to quickly measure sodium ion content, long time-consuming peak value measurement, high cost investment, etc., to achieve a simple and fast detection method, The effect of low detection cost and low equipment investment

Inactive Publication Date: 2005-01-05
李元瑞 +1
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Problems solved by technology

In the determination of atomic absorption spectrophotometry, the sample needs to be digested or ashed, which takes a long time, the operation is complicated, and the equipment is expensive, generally 300,000 to 400,000 yuan
Ion chromatography sample processing is relatively simple, but it takes a long time to enter the chromatographic column and measure the peak value, and its price is generally around 200,000 yuan
Therefore, for domestic fruit juice production enterprises, these two methods require too much cost investment, cumbersome operation, and take a long time, and cannot quickly determine the content of sodium ions in the sample.

Method used

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  • Method for quickly detecting content of sodium content in juice and beverage
  • Method for quickly detecting content of sodium content in juice and beverage

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Embodiment Construction

[0022] (1) embodiment:

[0023] 1. Deionized water standard for experiments: It meets the requirements of the first-class water stipulated in the national standard GB6682-92 "Analytical Laboratory Water Specifications and Test Methods".

[0024] 2. Prepare sodium standard stock solution: bake sodium chloride (standard reagent) at 105°C±1°C for 4-6 hours to constant weight, accurately weigh 2.5421g, dissolve with deionized water to 1L, store in polyethylene bottle, stored at 4°C for later use.

[0025] 3. Prepare sodium standard working solution: pipette 10.0mL sodium standard solution into a 100mL volumetric flask, dilute to the mark with deionized water, store in a polyethylene bottle, and store at 4°C for later use.

[0026] 4. Prepare a series of standard solutions: draw 1.0, 2.0, 4.0, 6.0, 8.0, 10.0mL sodium standard working solutions, place them in 100mL volumetric flasks respectively, and then dilute to the mark with deionized water to prepare sodium 1, 2 , 4, 6, 8, 10...

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Abstract

The invention relates a method for detecting the natrium ion content in juice and beverage quickly. The invention uses fire photometer to detect the natrium ion in liquid with small viscosity and transparent such as juice, beverage and product line purge water. It includes following steps: (1) confects the natrium standard storage liquid; (2) confects the natrium standard treatment fluid; (3) confects the natrium series standard liquid; (4) sample processing; (5) powers on and fires; (6) works out the standard curve; (7) puts in the sample to be measure, and reads; (8) powers off; (9) calculates the content.

Description

1. Technical field: [0001] The invention relates to a detection method for fruit juices and beverages, in particular to a method for quickly measuring sodium ion content in fruit juices and beverages. 2. Background technology: [0002] As the production of fruit juice and beverage industry is developing in the direction of internationalization, the production technology and equipment are constantly updated, and the quality requirements for products are also continuously improved. The international market has put forward stricter requirements for the sodium ion content in fruit juice, 11.5 The sodium ion content of °Brix juice samples <30mg / L has become a mandatory standard. At present, atomic absorption spectrophotometry and ion chromatography are mostly used to determine the content of sodium ions in fruit juice in China. In the determination of atomic absorption spectrophotometry, the sample needs to be digested or ashed, which takes a long time, the operation is compl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/72
Inventor 李元瑞朱江李凡玥刘峰
Owner 李元瑞
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