ST109C Traditional Chinese Medicine Sulfur Dioxide Analyzer
Completely faithful to the statutory testing method of the 2020 version of the Chinese Pharmacopoeia, it can batch up to 8 samples at one time, automatic timing backflow, automatic acid addition, automatic nitrogen blowing, super cost-effective! It is suitable for all levels of Chinese medicine inspection and testing, all levels of Chinese medicinal materials, decoction pieces production enterprises and Chinese medicine scientific research units, etc.
?Usage description It can be used for the pre-treatment of the detection of sulfur dioxide residues in Chinese medicinal materials and decoction pieces in the methods specified in the Chinese Pharmacopoeia. The 2020 edition of the Chinese Pharmacopoeia stipulates three detection methods for sulfur dioxide: acid-base titration, gas chromatography, ion chromatography, etc. Gas phase and ion chromatography have the advantages of high sensitivity and specificity, but the equipment is expensive, which is not conducive to the popularization and use of primary drug testing systems; acid-base titration has the advantages of simple equipment and low cost, and is a legal testing method prescribed by the Pharmacopoeia. However, since the pharmacopoeia only describes the glass instrument device of this method, the purchase, assembly and implementation of the entire device need to be continuously improved. For example: (1) In addition to the glass instrument device, it needs to be equipped with magnetic stirring, electric heating mantle, titration platform, nitrogen device with flow meter, etc., and assembled. Many units feel that the purchase of equipment is too cumbersome and the assembly is difficult to implement, and cannot carry out this detection method; (2) The assembled devices are diverse, and there are unstable nitrogen flow rates, uneven heating, easy air leakage, and easy bumping during use. , It is susceptible to problems such as the influence of the cooling water source, and the corresponding phenomenon that directly affects the test results such as poor parallelism and low recovery rate; (3) The work efficiency is low. The current equipment adopts a single device, and it is difficult to process multiple samples at the same time. Simultaneous inspection of secondary medicinal materials is time-consuming and laborious. Instrument innovation (1) Heating, distilling reflux, automatic acid addition, cooling, nitrogen blowing control, magnetic stirring, and receiving seven integrated design; (2) Use far-infrared ceramic heating device to replace ordinary electric heating furnace or electric heating mantle, which is more energy-saving and has good waterproof effect and acid and alkali corrosion resistance; (3) The front LCD touch screen can realize the functions of nitrogen blowing before adding acid, automatic acid addition, automatic nitrogen start control, etc.;
(4) 8 samples can be made at a time, and the heating power can be adjusted in a single hole;
(5) Automatic nitrogen control function, the nitrogen flow can be adjusted independently for a single hole (60-600ml/min); (6) "Chinese Pharmacopoeia" original design reflux condenser (7) There is a built-in magnetic stirrer at the bottom of the receiving bottle, and the stirring speed can be single group and monotonous;
(8) It can be used with our company's nitrogen generator.
