Automatic wheat starch sulfur dioxide residue analyzer

YJ-2331A-2 Automatic Determination of Sulfur Dioxide Residue in Wheat StarchThe instrument complies with the General Rules 2331 for the determination of sulfur dioxide residues in the 2025 edition of the Chinese Pharmacopoeia and the GB 5009.34-2022 National Food Safety Standard for the determination of sulfur dioxide in food. We have upgraded the flow meter range to 0.2-2L/min, which meets the standard requirements of nitrogen flow rate of around 0.2L/min for traditional Chinese medicine testing and 1-2L/min for food testing! The standard configuration is four pairs, and six pairs can be optionally selected. This instrument is mainly suitable for various traditional Chinese medicine production enterprises, traditional Chinese medicine research institutes, and food production enterprises related to sulfur fumigation, for routine determination of sulfur dioxide residue. This product is made from the grains of the wheat cultivar Triticum aestivum L., a member of the Poaceae family. 【 Appearance 】 This product is a white or off white powder. This product is insoluble in water or ethanol. Take an appropriate amount of this product and inspect it according to the law (General Rule 2331, Method 1). The sulfur dioxide content should not exceed 0.005%.

1YJ-2331A-2 Automatic Determination of Sulfur Dioxide Residue in Wheat StarchMain principle:

The main principle is to process traditional Chinese medicinal materials by distillation according to the detection methods provided in the pharmacopoeia. After acid treatment, the sulfite series substances in the sample are converted into sulfur dioxide, which is then carried into an absorption bottle containing hydrogen peroxide with nitrogen gas flow. The hydrogen peroxide oxidizes it into sulfate ions, which are determined by acid-base titration to calculate the residual sulfur dioxide content in the medicinal materials and decoction pieces. On the basis of strictly following the requirements of the pharmacopoeia, this product integrates functions such as heating, distillation, water circulation, and nitrogen blowing, and can provide processing for 3-5 samples (blank samples, parallel samples) simultaneously, greatly improving the accuracy of detection data and reducing working time.

2、 Main features:

1. Choose a sealed infrared ceramic heating sleeve, which has good heat collection, high heating efficiency, and can prevent equipment damage caused by liquid leakage.

2. Full touch screen control, human-computer interaction interface, easy to operate and control.

3. The heating device has independent temperature control and adjustable heating power.

4. Heating countdown function, buzzer reminder, automatic stop heating.

5. The external cooling circulating water system improves condensation efficiency and saves energy. And it can be shut down and refilled with one click.

6. Configure an independent precision nitrogen flow control system. (Users need to bring their own nitrogen pipelines, nitrogen cylinders, nitrogen generators, and other gas source inlets)

3、 Product parameters:

1. Display mode: LCD touch screen.

2. Heating method: Heating sleeve heating (no open flame heating, low power consumption, high efficiency).

3. The nitrogen blowing control host is equipped with a nitrogen main interface, and the nitrogen flow rate of a single hole can be controlled separately through a flow meter.

4. Cooling method: External cooling water circulation machine, no need for external tap water cooling.

5. Temperature control: Built in micro boiling heating control system, temperature control range 0-200 ℃

6. 4 sets of distillation units (optional 6 sets)

7. Distillation flask standard specifications: 1000ml flask

8. Standard specifications for receiving bottles: 100ml x 4 conical bottles

9. Rated power: 2450W

10. Rated voltage: 220V/50HZ

11. Dimensions (mm): 930 * 520 * 850

12. Leakage protection device: Yes

13. Anti dry burning design: available

Complies with the General Principles 2331 of the Chinese Pharmacopoeia 2025 edition, which specifies the determination of sulfur dioxide residues, and the GB 5009.34-2022 national food safety standard for the determination of sulfur dioxide in food. We have upgraded the flow meter range to 0.2-2L/min, which meets the standard requirements of nitrogen flow rate of around 0.2L/min for traditional Chinese medicine testing and 1-2L/min for food testing! The standard configuration is four pairs, and six pairs can be optionally selected. This instrument is mainly suitable for various traditional Chinese medicine production enterprises, traditional Chinese medicine research institutes, and food production enterprises related to sulfur fumigation, for routine determination of sulfur dioxide residue. This product is made from the grains of the wheat cultivar Triticum aestivum L., a member of the Poaceae family. 【 Appearance 】 This product is a white or off white powder. This product is insoluble in water or ethanol. Take an appropriate amount of this product and inspect it according to the law (General Rule 2331, Method 1). The sulfur dioxide content should not exceed 0.005%.

1、 Main principle:

The main principle is to process traditional Chinese medicinal materials by distillation according to the detection methods provided in the pharmacopoeia. After acid treatment, the sulfite series substances in the sample are converted into sulfur dioxide, which is then carried into an absorption bottle containing hydrogen peroxide with nitrogen gas flow. The hydrogen peroxide oxidizes it into sulfate ions, which are determined by acid-base titration to calculate the residual sulfur dioxide content in the medicinal materials and decoction pieces. On the basis of strictly following the requirements of the pharmacopoeia, this product integrates functions such as heating, distillation, water circulation, and nitrogen blowing, and can provide processing for 3-5 samples (blank samples, parallel samples) simultaneously, greatly improving the accuracy of detection data and reducing working time.

2、 Main features:

1. Choose a sealed infrared ceramic heating sleeve, which has good heat collection, high heating efficiency, and can prevent equipment damage caused by liquid leakage.

2. Full touch screen control, human-computer interaction interface, easy to operate and control.

3. The heating device has independent temperature control and adjustable heating power.

4. Heating countdown function, buzzer reminder, automatic stop heating.

5. The external cooling circulating water system improves condensation efficiency and saves energy. And it can be shut down and refilled with one click.

6. Configure an independent precision nitrogen flow control system. (Users need to bring their own nitrogen pipelines, nitrogen cylinders, nitrogen generators, and other gas source inlets)

3、 Product parameters:

1. Display mode: LCD touch screen.

2. Heating method: Heating sleeve heating (no open flame heating, low power consumption, high efficiency).

3. The nitrogen blowing control host is equipped with a nitrogen main interface, and the nitrogen flow rate of a single hole can be controlled separately through a flow meter.

4. Cooling method: External cooling water circulation machine, no need for external tap water cooling.

5. Temperature control: Built in micro boiling heating control system, temperature control range 0-200 ℃

6. 4 sets of distillation units (optional 6 sets)

7. Distillation flask standard specifications: 1000ml flask

8. Standard specifications for receiving bottles: 100ml x 4 conical bottles

9. Rated power: 2450W

10. Rated voltage: 220V/50HZ

11. Dimensions (mm): 930 * 520 * 850

12. Leakage protection device: Yes

13. Anti dry burning design: available