Circular Water Bath Nitrogen Evaporator

Hangzhou Qiwei Instrument Co., Ltd. is one of the leading manufacturers and suppliers of circular water bath nitrogen evaporator in China. With a professional production team, we are able to meet the needs of the majority of our customers. Welcome to wholesale bulk circular water bath nitrogen evaporator in stock here from our factory. We also accept customized orders.

 

 

 

The QiweiLab Circular Water Bath Nitrogen Evaporator is designed for the attention of appropriate water samples during laboratory test preparation. It combines controlled water-bath heat with nitrogen gas directed toward the test surface to help liquid evaporation under a defined lab procedure.

The QW-DCY-YS collection offers combinations with 12, 22, or 24 individually controlled sample positions. With flexible fuel movement, independently operated oil knife channels, and an adjustable oil supply assembly, the instrument allows laboratories to setup gas delivery according to the number of samples being processed and the requirements of the scientific method.

The program can help sample preparation workflows in food safety, pesticide residue testing, medical analysis, and scientific or environmental laboratories. Genuine suitability depends on the test solvent, target analytes, required last volume, and laboratory method.

For laboratories comparing a 12-, 22-, or 24-position ammonia compressor, the primary choice factors are trial capacity, test-tube size, gas-flow control, water-bath heat, available bench space, and compatibility with the laboratory's sample preparation procedure.

 

product key technologies

The circular water bath nitrogen evaporator uses inert gases such as nitrogen to rapidly, controllably and continuously blow onto the surface of the sample to achieve rapid oxygen-free concentration of the sample solution. This method is characterized by time-saving, convenience and accuracy. It is widely used in fields such as food safety, medicine, pesticide residue detection, and clinical pharmacokinetics.

The circular water bath nitrogen evaporator is designed to support test pipes within the specified size range for the selected configuration. The oil supply legislature can be raised or lowered to adjust the position of the oil knives relative to the test tubes.

Before ordering, check the second:

1. Exterior diameter of each pipe or canister, including any cover or protruding feature that affects placement.

2. Tube elevation and the necessary clearance between the knife tip and sample surface.

3. Sample quantity and the expected final focus volume.

4. Solvent compatibility with the pipe materials and all wetted components.

5. Whether various tube measurements need to be processed in the same sample.

The published pulling level of the fuel distribution tray is 0–150 mm. Confirm the useful adjusting range with your real tube dimensions and working setup.

For laboratories using several types of test tubes, provide the pipe size, height, and material to QiweiLab. The stock can then confirm interoperability and advise whether a personalized aperture or item is available.

1. The gas needle channels on the distribution chamber can be used in combination or individually, and each gas needle can be switched on and off independently. The height of the distribution chamber is adjustable as required.

2. The gas flow rate of each channel can be adjusted separately to meet different user needs. Meanwhile, it overcomes the shortcoming of uneven gas flow rates among different gas paths in non-adjustable nitrogen blowers.

3. The self-balancing suspended lifting mechanism features an ingenious design, enabling more flexible height adjustment of the distribution chamber.

4. Digital display with PID control.

5. All components that may come into contact with solvents are made of 304 stainless steel, ensuring a long service life and easy cleaning.

6. The whole instrument can be placed inside a fume hood for operation.

7. The commonly applicable aperture of heating tubes ranges from φ11mm to φ29mm; users can order special apertures and specifications in advance for customized requirements.

Series A

Series B

1. Preparing trial preparation for pesticide residue

In appropriate chemical residue analysis workflows, food testing laboratories may employ nitrogen-assisted absorption as a attention step. Before any further orchestral evaluation, the sample may become concentrated to a specific volume following extraction and cleaning.

The right approach is dependent on the extraction solvent, the target pesticide, the sample matrix, and the scientific approach. To prevent improper absorption conditions or the loss of turbulent target compounds, temperature and gas flow should be chosen.

2. Testing for veterinary medicine residues

A nitrogen evaporator can help with the preparation of ready extracts before orchestral analysis for appropriate veterinary drug residue workflows. The evaporation temperature, gas flow, ultimate volume, and handling procedure should be determined according to the method's specific requirements.

Instead of assuming that all animal drug compounds behave similarly during evaporation, users should check analyte stability and method recovery for the specific circumstances.

3. General lab analysis and food composition

When extracts are prepared for research in food laboratories, a controlled sample concentration may also be required. The ideal construction is determined by the number of samples per batch, the type of solvent used, the size of the tubes, and the required laboratory throughput.

4. Laboratories for Pharmaceuticals and Environmental

The device might be used in appropriate laboratory procedures with organized liquid extracts. Before putting the equipment into routine use, check compatibility with the target analytes, solvent, required ultimate volume, and analytical method.

The evaporator is not a sample preparation tool; it does not independently find or quantify pesticide residues, animal medications, or other analytes. Last analytical results are affected by the complete validation of the method.

1. How do I choose between a 12-, 22-, and 24-position nitrogen evaporator?

Select according to the number of samples usually processed per sample, the tube dimensions, the space available in the laboratory, and the expected level of separate gas control. Confirm the specific configuration and suitable tube diameter before ordering.

2. May each gas needle become controlled separately?

The published item information states that gas needle channels may be switched on or off individually and that gas flow can be adjusted independently for each channel. Ask QiweiLab to show the gas-control layout for your selected type if this feature is essential to your workflow.

3. What pipe diameters are compatible with the round nitrogen evaporator?

The published sequence specs list ranges of 11–29 mm and 11–27 mm, depending on construction. The exact selection for the selected type should be confirmed before buy. Give the tube size and height when requesting a quotation.

4. May the instrument decrease nitrogen consumption?

Independent channel switching and individual gas-flow adjusting allow users to control which jobs receive fuel and how much gas is supplied. Real gas consumption and any decrease rely on the working settings and number of active channels. Request measured comparative information if a measured preserving is required.

5. Can you test the nitrogen evaporator with pesticide residue and veterinary drug residue?

In these workflows, it can help appropriate test concentration steps. According to the scientific method and the target analytes, the correct temperature, gas flow, last volume, and operating procedure must be established.

6. May I demand a custom configuration or tube adapter?

Specific apertures and specs can be requested in advance, according to the product page. Give the desired use, desired use, and tube diameter so QiweiLab may verify availability of the requested customization.

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