headspace samplerCompared with manual technology can provide more advantages, through the software, the user can establish four methods, the user can edit a parameter in any method, and the headspace sampler is automatically set according to these parameters, and then the gas chromatography is optimized according to the characteristics of the analyzed substance. Another advantage is the automatic establishment of methods, including automatic analysis of 50 samples, constant heating of each sample and removal of gas through a heated loop to ensure repeatability of results. Attention should be paid to the following two points when selecting headspace sampler:

Repeatability of 1. injection results: that is, the concentration of RSD calibration sample should be less than 3‰), this index is the key index for evaluating headspace samplers, and the basic RSD of qualified headspace samplers should be less than 3%, so the user should ask the manufacturer for the original spectrum and technical data of factory inspection during selection and procurement.

The 2. temperature gradient is also a key indicator. The temperature control range and control accuracy (including temperature stability and the deviation between the set value of temperature gradient and the actual value) of the headspace flask thermostatic furnace can be 180 ℃ for slightly higher ones, and 200 ℃ for higher ones, which is a bit far-fetched for headspace sampling beyond 200 ℃. The temperature range is commonly 10 ℃ to 150 ℃ above room temperature.

The products of Beijing Beitian Instrument Technology Co., Ltd. have been widely used in petrochemical industry, electric power supervision, quality supervision and inspection, environmental monitoring, scientific research institutes, colleges and universities, health and epidemic prevention, medicine, brewing, grain and oil and many other fields. It has a good social reputation. Customers are welcome to visit and buy!