isiZulu
Kwadalwa ngo 08.25

Ukuqeda Ukwehliswa Kwe-Active Site Nokwehla Kwe-Peak Tailing Kwezibulala-zinambuzane Ezi-Polar ku-GC/GC-MS

Ekuhlolweni kokulandelela izinhlayiya zezibulala-zinambuzane (isb., i-organophosphorus, i-organochlorines) kanye ne-forensic toxicology workflows, ama-analytes angama-polar afana ne-methamidophos, i-acephate, i-pentachlorophenol, ne-endrin avame ukuhlushwa ukwehla okukhulu kwe-peak tailing, ukwehla kwe-response factors, noma ukulahleka okuphelele kwesignali. Lokhu konakala kubangelwa ama-silanol active sites () aveziwe ku-inlet liners nasekuqaleni kwe-capillary column.
I-GC-MS chromatogram ekhombisa ukuncipha okukhulu kwe-peak tailing ye-methamidophos yezibulala-zinambuzane ezi-polar ekuhlaziyweni kwe-trace residue

Amaphuzu Abalulekile

  • Indlela Yokulahleka Kwesignali:
  • Kungani Ama-Liners Avamile Ehluleka Ngokushesha:
  • Isixazululo Esiphelele: I-Chemical Vapor Deposition (CVD) high-density deactivated inlet liners kanye ne-ultra-inert guard column

Indlela Ama-Active Sites Abhubhisa Ngayo Ukuhlaziywa Kwezibulala-zinambuzane Ezilandelwayo

Ukujova Kwe-Dirty Matrix ➔ I-Thermal Pyrolysis Ku-Inlet ➔ Ama-Silanol (Si-OH) Aveziwe ➔ Ukubhidlika Kwe-Catalytic Nokuhlanganiswa Kwe-Hydrogen Bonding ➔ Ukwehla Okukhulu Kwe-Peak Tailing Nokulahleka Kokutholakala (Methamidophos / Endrin)
Izindawo ze-GC inlet liner ezisebenzayo ze-silanol ezibangela ukukhanga kwe-hydrogen bonding kanye nokwehliswa kwe-catalytic kwezibulala-zinambuzane ezi-polar
  1. Ukuhlanganiswa Kwe-Hydrogen Bonding:
  2. Ukubola Kwe-Thermal Nokwe-Catalytic:
  3. Ukungalingani Kokusebenza Kwe-Dual-Polarity:

Ukuqhathanisa Ukusebenza: Ama-Liner Ajwayelekile vs. Ukungasebenzi Kwe-CHANCEPRO Ultra-Inert

Ipharamitha Yokusebenza
Ama-Liner / Amashubhu Ajwayelekile Athengiswayo
Inhloso Yemboni (Agilent UI / Restek Topaz)
I-CHANCEPRO Ultra-Inert CVD Series
Inqubo Yokungasebenzi
Ukucwilisa/ukugeza ngesigaba soketshezi
Isigaba segesi esishisayo
Ukufakwa Kwe-Chemical Vapor Deposition (CVD) Okuminyene
Iphrofayili Yokungasebenzi Kwesimo
Okulinganiselayo (kuthambekele ekudonseni izisekelo)
Okungasebenzi ngokubanzi
Ukuvikelwa kokungathathi hlangothi kwe-Dual-Polarity (i-Acid ne-Base)
Isici sokudonsa (
) se-Methamidophos
(noma i-peak engekho)
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Ukuphuka kwe-Endrin / DDT
(yehluleka ukulawula ikhwalithi ngemva kwemijaho engu-30)
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(kuqinisekiswe emijahweni engaphezu kwe-100 yamatrices)
Umbundu wokuzinza kokushisa
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Inketho yoboya be-Inlet Liner
Okungalungisiwe / ukufakwa okuxekethile
Uboya obulungisiwe be-Ultra-inert
Uboya be-CVD Deactivated Fused Quartz (In-Situ)

Izindlela ezi-4 zokugcina ukungathathi hlangothi kohlelo emijahweni eminingi yezinsalela

  1. Sebenzisa i-Guard Column ye-Ultra-Inert:
  2. Khetha i-Liner Geometry efanele:
  3. Hlola Ukungaguquguquki Kwekhwalithi Yohlelo Lwansuku zonke:
  4. Shintsha Izimpawu Zegolide Njalo:
I-CHANCEPRO ultra-inert GC inlet liner ene-CVD deactivated fused quartz wool kanye ne-capillary guard column

Izixazululo Ze-Chromatography Ezingenamsebenzi Ze-CHANCEPRO

Kuklanyelwe ukuthobela imithetho eqinile yokuphepha kokudla (GB 2763, EU 396/2005, US FDA PAM) nokuthobela imvelo:
  • Ama-Liner E-GC Angenamsebenzi E-CHANCEPRO:
  • Amashubhu Okuvikela Asebenza Ngaphambilini (0.25 mm / 0.32 mm / 0.53 mm ID):
  • Ukuhambisana Namathuluzi Wonke:

Thintana nathi

Ukuhlanganisa Ubusha, Ukusebenzisa Izitayela.

Ngokubhalisa incwadi yethu yezindaba, uyavuma neMigomo Yethu Yesevisi kanye neNqubomgomo Yobumfihlo.

Xhumana Nathi