Gas kua chromatography siv rau dab tsi?
Gas kua chromatography siv rau dab tsi?

Video: Gas kua chromatography siv rau dab tsi?

Video: Gas kua chromatography siv rau dab tsi?
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Gas chromatography (GC) yog ib hom ntawm siv chromatography nyob rau hauv analytical chemistry rau kev sib cais thiab txheeb xyuas cov tebchaw uas tuaj yeem vaporized yam tsis muaj decomposition. Hom siv ntawm GC suav nrog kev ntsuas qhov purity ntawm ib yam khoom, lossis cais cov khoom sib txawv ntawm cov khoom sib xyaw.

Tsis tas li, cov kua roj chromatography ua haujlwm li cas?

Hauv gas chromatography , tus cab kuj gas yog theem mobile. Tus nqi ntws ntawm cov cab kuj tau ua tib zoo tswj kom muab qhov kev sib cais meej tshaj plaws ntawm cov khoom hauv cov qauv. Cov qauv raug ntsuas yog txhaj rau hauv cov cab kuj gas siv lub syringe thiab instantly vaporizes (dub mus rau hauv gas daim ntawv).

Tsis tas li, dab tsi yog cov cuab yeej siv hauv cov roj chromatography? Gas chromatography detectors

  • GC DETECTORS.
  • FLAME IONIZATION DETECTOR (FID):
  • NITROGEN PHOSPHORUS DETECTOR (NPD):
  • ELECTRON CAPTURE DETECTOR (ECD):
  • ThermAL CONDUCTIVITY DETECTOR (TCD):
  • FLAME PHOTOMETRIC DETECTOR (FPD):
  • PHOTOIONIZATION DETECTOR (PID):
  • ELECTROLYTIC CONDUCTIVITY DETECTOR (ELCD):

Tib neeg kuj nug, puas yog gas chromatography thiab gas kua chromatography tib yam?

Raws li lub npe qhia High Performance Ua kua Chromatography siv a ua kua mobile theem thiab gas chromatography siv a gas raws li tus cab kuj. Cov kua dej feem ntau yog sib xyaw ntawm cov kuab tshuaj ntawm cov polarities sib xws thaum nyob hauv gas chromatography lub mobile theem yog ib tug siab purity gas.

Lub ncov txhais li cas hauv gas chromatography?

Feem ntau, x-axis ntawm lub gas chromatogram qhia lub sij hawm npaum li cas rau cov analytes kom dhau ntawm kab thiab mus txog qhov loj spectrometer ntes. Cov ncov uas tau pom sib raug rau lub sij hawm uas txhua yam ntawm cov khoom mus txog lub ntes.

Pom zoo: