ONTECH720 Online two-stage cold trap concentrator

1. Two-stage cold trap enrichment or two-channel four-cold trap enrichment alternating injection enrichment.         

2. Concentration ratio is greater than 1000:1.

3. Efficient water removal trap, while removing the water from the sample，polar compounds dissolved in water were retained，so can concentrate gas sample, benzene series standard sample, PAMS 57 standard sample also can concentrate TO-15 65 standard sample, solve the problem when remove water by permeable membrane, can only concentrate PAMS 57 standard, can not concentrate TO-15 polar standard samples.

4. The control software is simple to operate, powerful, especially suitable for users who lack preconcentration use experience, easy to use.

5. The enrichment temperature can be adjusted from-30 degrees to 200 degrees, and the stripping temperature is adjustable from 200 degrees to 400 degrees

6. Innovative structure design, no loss of sample gas in the whole process.

7. It can be connected to the SUMMA canister and air bag, and can be matched with the automatic injection device to realize the automatic injection function of the batch sample

8. It can match any style of online GC or GC-MS

Ontech720 Online two-stage cold trap concentrator can realize a high concentration of ultra-low concentration of VOCs, its concentration ratio is greater than 1000:1, can combine with any style of GC or GC-MS, and can continuously enrich volatile organic compounds in ambient air. Ontech-720 adopts two-stage cold trap, the freezing temperature can reach -30 degrees, the primary cold trap efficient water removal, secondary cold trap efficient enrichment, and then through the original patent stripping analytical technology, can get rid of the traditional flash stripping analytical technology, the VOCs strippedfrom the secondary cold trap can move into  GC separation, make the low carbon (C2-C6) separation more perfect, also the double channel 4 cold trap can be injected alternately, make sampling without blind spot, truly realize seamless continuous sampling.

Ontech720 Online two-stage cold trap concentrator can be used for the continuous online monitoring of the low concentration and ultra-low concentration of volatile organic compounds in the ambient air in various public places such as factories, industrial parks and ambient air.