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AQMs
Mobile monitoring
VOCs
Particle composition
Air samplers
VOCs pollution sources
CEMs
Sampling and analysis
Mercury
Cooking fume
Automobile exhaust
Site dust monitoring
Water quality
Calibrators and lab
Agents
Model xonteck-951a quantitative ring calibrator
Model xonteck-951a quantitative ring calibrator
Product Description:
Consult Now Introduction
Product Description
The determination of organic compounds by gas chromatography and mass spectrometry is indirect, so the analytical system should be calibrated with standard samples. 951a quantitative ring calibrator is composed of a series of quantitative ring injector and adsorption tube preconcentrator, which can be used for the calibration of VOCs analyzer in the atmosphere. The 1ppm standard gas does not need to be diluted. It is directly sampled by the quantitative ring. It is swept by the fixed volume carrier gas into the adsorption tube for concentration and focusing. After thermal desorption, it enters the analyzer for detection. At the same time, the calibrator can be connected with six quantitative loops of different volumes, and can calibrate six concentrations of the instrument. Through the software control, it can realize the pyrolytic absorption and trigger the GC at the same time, and finally realize the automatic calibration of the instrument.
Features

The 1ppm standard gas cylinder is directly connected to 951a calibrator, and the standard gas is collected with different volume quantitative ring, and then the standard gas in the quantitative ring is blown into the concentration instrument and analyzer for calibration (calibration) with a certain volume of carrier gas. Quantitative ring injection realizes the direct injection of high concentration and small volume standard gas. A certain volume of carrier gas is used to purge the standard gas in the quantitative ring into the adsorption tube for concentration, which is equivalent to diluting the 1ppm standard gas in the quantitative ring by the volume of the purge carrier gas. The volume of the purge carrier gas is large and the dilution ratio is high, thus the 1ppm standard gas is diluted to the required ppb level concentration. The quantitative ring calibrator can calibrate the instrument, save the standard gas, and do not need the sampling tank, gas distribution instrument and tank cleaning instrument, so the calibration cost is greatly reduced. 5-6 quantitative ring injection calibration analyzer can be selected to meet the requirements of standard curve preparation. The calibration of various concentration series can be realized by changing the volume of purge carrier gas. The method has good repeatability and high sensitivity

Scope Of Application
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