Shanghai Pu analysis GC7890 chromatograph analysis instruments made new C-7890 gas chromatograph instrument: 1, large-screen LCD Chinese display, various temperature and operating conditions in real-time display, the content clear and intuitive, truly interactive; 2, boot from inspection, wide drive self-diagnostic function, can accurately determine the fault position and the police; 3, six independent temperature control (vaporization chamber, capillary temperature vaporization chamber independently), eight-order temperature-programmed functions; 4, overtemperature protection: any way exceeds the set temperature, the instrument off and an alarm; 5, the unique vertical heating means more reliable vaporization of the sample, the heat radiation generated in the vaporization chamber to a minimum, to keep the temperature inside the column of the minimum deviation; ????????? 6, intelligent fuzzy control after door systems, automatic tracking temperature and dynamically adjusts the throttle angle, truly near room temperature operation; 7, Configuring packed column column injection, glass-lined injection with membrane cleaning function of capillary split / splitless device can be mounted gas sampling device; 8, precision dual stable gas line, which can be installed four kinds of detectors; temperature indicator 1 Temperature range: +5 ℃ ~ 400 ℃ increments of 0.1 ℃ 2. Temperature accuracy:? better than ± 0.01 ℃ ??????????????????????? 3. temperature program: eight bands holding time between order 0 ~ 999min ???????????? ?? incremental 0.1min ??????? 0.1 ℃ temperature increase heating rate: Max 40 ℃ under 200 ℃ / min ?? ~ ~ ~ ~ ~ ???? on 200 ℃ maximum 20 ℃ / min Detector index detector indicators hydrogen flame detector (FID):? sensitivity Mt≤3 × 10-12g / s (n-hexadecane) noise ≤5 × 10-14A ?? linear range ≥106 thermal conductivity detector (TCD):? sensitivity S≥5000mv.ml / mg (n-hexadecane) noise ≤20uv ??? linear range ≥104 flame photometric detector (FPD): Formula side ~ ~: S or P by using the filter Sensitivity: 1 × 10-11g (s) / s (the thiophene S), 1.4 × 10-12g (p) / s (meth parathion in P) electron capture detector (ECD): Sensitivity:? Mt≤1 × 10-13g / ml (r-666) Noise ≤15uv linear range ≥5 × 103 radioactive Ni63 nitrogen phosphorus detector ( NPD): Sensitivity: N Mt≤5 × 10-11g / s (azobenzene) phosphorus Mt≤2 × 10-12g / s (malathion) noise N≤2 × 10-13A