Fully automatic nitrogen blowing instrument

Description of products

In a large amount of analysis work, especially in the fields of environmental pollutants and food safety analysis, the fully automatic nitrogen blowing instrument needs to preprocess the prepared sample in order to obtain trace target components. The process mainly includes basic steps such as sample extraction (extraction), concentration, purification, and reconcentration. Among them, how to quickly and non destructively concentrate is also a key step. The commonly used devices for completing the concentration process include rotary evaporators, K-D concentrators, and nitrogen blowing (referred to as nitrogen blowing instrument). Among them, nitrogen blowing concentration is simple and does not require special device design. When the sample quantity is small or the solvent amount is small, this method is convenient to use. When a large number of samples need to be concentrated simultaneously with a large amount of solvent, the above concentration devices appear inadequate, and the concentration process appears time-consuming and laborious (requiring supervision to prevent drying). Additionally, an open nitrogen blowing device is detrimental to the health of operators.

This equipment adopts a unique concentration method to significantly improve the concentration rate. At the same time, the equipment uses its own exhaust fan to directionally discharge the evaporated waste gas through the exhaust pipeline, so that the nitrogen blowing concentration device, which originally had to be placed in a ventilated kitchen, can be safely installed on a general experimental platform. Not only is it easy to move and saves laboratory costs, but it also reduces the harm of toxic and harmful solvents to operators. It is a pre-treatment device for laboratory samples.

Product characteristics

1. The fully automatic nitrogen concentrator can simultaneously concentrate single or multiple samples without the need for manual monitoring: The fully automatic nitrogen concentrator uses multiple optical sensors to monitor the concentration process of each sample. When the evaporation concentration reaches the preset volume, the system automatically stops the nitrogen purging of the corresponding channel and gives an alarm prompt. The entire concentration process does not require manual supervision;

2. Special airflow sweeping trajectory and buffer design: can accelerate solvent evaporation and concentration, prevent solvent splashing loss;

3. Arbitrary setting, control, and real-time display of working parameters: The main working parameters include nitrogen blowing pressure, water bath temperature, and working time, which can be set as needed.

4. Stable and constant nitrogen blowing airflow pressure: The instrument comes with an automatic pressure regulating device, and the airflow pressure can be automatically controlled and kept constant, without being affected by the sudden opening, closing, or quantity of working channels (samples);

5. Sample pollution-free effect: All gas paths and related components are made of verified zero pollution materials to avoid contamination of the sample from the instrument;

6. Easy to operate and safe: flexible working parameter settings, convenient sample insertion/extraction process, easy to learn and use; The fully enclosed design and the instrument's built-in strong exhaust system configuration can avoid the impact of water bath steam and organic volatile components on the instrument and operators.

Technical parameters

1. Product model: HM-QD12S;

2. Sample quantity: Simultaneously concentrate and treat 1-12 samples;

3. Sample bottle volume: 50 or 150mL;

4. End point detection: Each working channel is equipped with optical sensors to automatically and independently detect the end point;

5. End point volume: The volume that can be fixed is 1.0mL, 0.5mL, or near dry (~0.1mL, the solvent can also be blown dry by extending the blowing time appropriately), and concentration bottles of different specifications can be used interchangeably at the same time;

6. Water bath temperature: room temperature -95 ℃ (± 0.5 ℃);

7. Automatic nitrogen concentrator nitrogen blowing time: 0-9999s;

8. Gas pressure: nitrogen blowing working pressure, 0~0.1MPa (pressure interval change of 0.01MPa);

9. External nitrogen pressure range: 0.2~0.8MPa; External allowable air pressure, 1.0MPa;

10. Gas consumption: At a blowing pressure of 0.1MPa, each channel is approximately 500mL/min (approximately 17cfm);

11. Constant volume sensitivity: Ten levels adjustable, accurate concentration and constant volume of solvents with different colors or light transmittance;

12. Control method: Users can choose to manually or intelligently control the blowing end point according to their actual situation;

13. Alarm prompt: The instrument will automatically give an alarm prompt when the lid is opened, the concentration is completed, or the water bath volume or nitrogen pressure is insufficient;

14. Other: Power supply, 220V/60Hz;

15. Instrument size, 650 x 450 x 308mm;

16. Weight: 20Kg.

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