Based on the use of chromatograph in the continuous expansion of the professional colleges and universities, there are nearly dozens of professional research using professional chromatograph, food, medicine, biology, chemistry and geological energy need chromatograph technology for scientific research auxiliary equipment.
| working gases | measured substance | analytical range |
| Acetylene + nitrous oxide or air | Sodium, potassium, magnesium, calcium and other metallic elements | g/L - mg/L(ppm) |
| working gases | measured substance | analytical range |
| Argon (protective graphite furnace) | Sodium, potassium, magnesium, calcium and other metallic elements | g/L - µg/L (ppb) |
| zero gas | purge gas | measured substance | analytical range |
| Nitrogen or air | Nitrogen or air | Molecules that absorb infrared light | ppm - % |
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