HUXI HPT-8 Automatic quantitative nitrogen blowing condenser 8L/600W

Introduction

The solution with pesticide residues extracted from the sample is generally very low, and the extract must be concentrated before the next purification or detection to reduce its volume and increase the concentration of pesticides, which is conducive to the purification step. In the concentration process, attention should be paid to preventing the loss of pesticides, especially pesticides with high vapor pressure and poor stability. Among the various operational steps of pesticide residue analysis, concentration is the most harmful to pesticides. Therefore, general distillation methods cannot be used. However, regardless of the method of concentration, the solvent should not be evaporated, and the pesticide is most likely to be lost when it is evaporated. In general, during concentration, an inhibiting evaporation agent such as ethylene glycol and diethylene glycol that does not interfere with the analysis are added to the extract solution to prevent the solvent from drying out and the pesticide loss. The commonly used concentration method is nitrogen blow-drying.

The automatic quantitative nitrogen blowing concentrator uses the rapid flow of nitrogen to break the gas-liquid balance over the liquid, so that the liquid volatilization rate is accelerated. And the temperature is raised by dry heating or Water Bath heating, so as to achieve the purpose of concentration. Nitrogen is also an inactive gas, which can also play a role in isolating oxygen and preventing oxidation. Nitrogen can be used in the following fields: pesticide residue analysis, environmental analysis, food and beverage, biological analysis, and pharmaceutical drug testing.

Features

• The nitrogen purge channel is controlled independently

• Dual blowing needle mode, automatic switching of blowing angle at different liquid levels, improving concentration efficiency.

• Automatic dosing mode, which automatically stops concentration when the concentration volume is reached.

• It can concentrate 1-8 samples at the same time, and the samples can be quickly concentrated by nitrogen blowing and Water Bath heating.

• The 7-inch LCD touch screen intelligent graphical operation interface is designed, which displays temperature, pressure, time and other parameters in real time.

• The unique double blow needle design uses the oblique blowing mode to vortex purge first, and automatically switches to the direct blowing mode when the concentration end is close to the end point to speed up the concentration speed.

• The hovering design of the open lid allows the upper cover to hover in any position, which is convenient and safe for sampling.

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[Note] Because the manufacturer's packaging may be updated or upgraded, the detailed packaging list shall be subject to the latest standard configuration of the manufacturer.