Online secondary cold trap concentrator

　Ontech720Online secondary cold trap concentratorIt is a product that highly concentrates ultra-low concentration VOCs with a concentration ratio greater than 1000:1. When paired with any style of GC or GC-MS, it can continuously concentrate and enrich volatile organic compounds in the ambient air. The O ntech-720 adopts a two-stage cold trap, with a freezing temperature of up to -30 degrees. The first stage cold trap efficiently removes water, and the second stage cold trap efficiently enriches. Through desorption analysis technology, it breaks away from the traditional flash desorption analysis technology, allowing VOCs desorbed from the second stage cold trap to enter GC separation, thereby achieving better separation of low-carbon (C2-C6). It can also achieve dual channel four cold trap alternating injection, making sampling blind spots free and truly achieving seamless continuous sampling.

Scope of application:

Ontech720Online secondary cold trap concentratorIt can be used for continuous online monitoring of low and ultra-low concentrations of volatile organic compounds in the ambient air of various public places such as factories, industrial parks, urban environments, and indoor air. Suitable for offline application analysis in various laboratories, it can be connected to Suma tanks, airbags, and automatic samplers to achieve automatic injection analysis of batch samples.

Product Features：

◎ Two stage cold trap enrichment or dual channel four cold trap enrichment alternate injection concentration.

The concentration ratio is greater than 1000:1.

Efficient water removal trap, while removing water from the sample, retains polar compounds dissolved in water. Therefore, it can concentrate 57 types of PAMS standards and 65 types of TO-15 standards, solving the problem of using a permeable membrane for water removal, which can only concentrate 57 types of PAMS standards and cannot concentrate polar standards such as TO-15.

The control software is easy to operate and has powerful functions, especially for users who lack pre concentration experience, it is easy to use.

The enrichment temperature can be adjusted from -30 ° C to 200 ° C, and the desorption temperature can be adjusted from 200 ° C to 400 ° C

Innovative structural design ensures no loss of sample gas throughout the entire process.

Can be connected to Suma cans and airbags, and can be paired with an automatic sampler to achieve automatic injection of bulk samples

◎ Can be paired with any style of GC or GC-MS