gc7890ii is a multi-function gas chromatography developed on the basis of gc7890i. it has the basic features of compact structure, automation, precise temperature control, plus the following add-on functions · improved temperature control of column oven. imported impeller resolve the problem of dynamic balance ensure even temperature distribution, resulted in high repeatability. · five detectors are available: fid, tcd, ecd, fpd and npd. any two of them can be mounted at the same time. · with techcomp specialised gc software; single column temperature compensation. more stable baseline and measurement results are more accurate. · wide range of injector choice from packing injector, capillary injector to split/ splitless capillary injector and so on. split/ splitless injector can eliminate tailing and ghost peak. · with new detector design, sensitivity and linearity can be enhanced. · according to international safety standard, gc7890ii software enhances protection functions on preventing from excessive power supply and sudden power break. · automation and reliability have been improved with using programmable fpga logic chip. · the parameter set up can be stored for ten years with eprom · gc7890ii has analog signal output interface and rs232 interface, with which the user can se-lect various integrators and pc software to process data. specification of detector · flame ion detector (fid) sensitivity: mt=1×10-11g/s noise: =1×10-14 a linear range: =105 max. temp: 399°c · thermal conductor detector (tcd) sensitivity: s=2500mv.ml/mg noise: =20uv linear range: =104 max. temp: 399°c · electron capture detector (ecd) sensitivity: mt=1×10-13g/s (bhc) noise: =15uv linear range: =5×103 max. temp: 350°c (ni63) · nitrogen phosphorus detector (npd) sensitivity: n: mt=5×10-11g/s p: mt=5×10-12g/s noise: =2×10-13 a · flame photometric detector (fpd) sensitivity: n: s=3×10-10g/s p: mt=5×10-11g/s noise: =20~30uv
Welcome To Our Company
Founded in 1998 , we are a well established and professional supplier of instruments and equipments.
We enjoy good relations with excellent partners in North America ,European Union and Japan .Our principal products include: HTA of Italy, Z-nose of U.S.A, and TEKNOKROMA of Spain and so on.
In the field of chemical analysis ,especially in chromatography, we have sufficient supplies of instruments which are readily available. We ensure the quality of every instrument sold by us, in the meantime, offer satisfactory customer service.
In case of any problem with the instrument, we guarantee a response in 24 hours during workday.
With commitment to credit, we have obtained a large share of Chinese market ,at the same time, won the support and trust from our clients.
Dedicated to the mission of helping our customers spend money in a wiser way and utilize instrument more efficiently, we will unswervingly continue along the path of pushing Chinese instrumental industry to conform to international standards..
