isiZulu
Kwadalwa ngo 08.31

Indlela Yokukhipha Ukuphazamiseka Kwe-VOC & Phthalate Blank Ekuvivinyweni Kwamanzi Kwe-EPA 524／624

Emalabhorethri okuhlola ezemvelo asebenza ngama-Volatile Organic Compounds (VOCs) asezingeni eliphansi ngokusebenzisa i-Purge-and-Trap GC-MS (njenge-EPA Methods 524.2, 524.3, 624.1, kanye ne-8260D), ukungcola kwe-method blank kuyimbangela eyinhloko yokwehluleka kwama-Quality Control (QC) batches. Ama-vial angu-40 mL VOA (Volatile Organic Analysis) angabizi noma angagunyaziwe avame ukukhipha i-benzene, i-toluene, ama-xylenes (BTEX), noma ama-phthalate plasticizers, ephakamisa imikhawulo yokutholwa kwendlela futhi ebangela ukuphindwa kwe-batch.
Umshini we-GC-MS wokuhlanzwa nokubanjwa, onamaviyali e-VOA angu-40 mL, wokuhlola okungahlanzekile kwe-VOC ne-phthalate

Okubalulekile Okutholakele

  • Imbangela Eyinhloko Yokwehluleka Kwe-QC Blank:
  • Izindinganiso Ze-EPA Protocol: I-EPA Protocol B
  • Isixazululo Esiphelele: ama-vial angu-40 mL VOA ahlanzekile agunyaziwe, ama-septa angu-0.125" (3.18 mm) e-PTFE/Silicone amsulwa

Imithombo Evamile Yama-Artifact Angemuva Kuma-Vial angu-40 mL VOA

I-Low-Grade Liner/Ukupakisha ➔ Ukukhishwa kwe-Plasticizer ne-Hydrocarbon ➔ Ukuhlanganiswa kwe-Purge-and-Trap ➔ Ama-ion aphezulu e-m/z 77, 91, 149 ➔ Ukwehluleka kwe-QC Blank kanye nokuphinda kuthathwe amasampula yikhasimende
Umdwebo wochungechunge lokungcola kwe-VOC ne-phthalate, kusukela ekuchithekeni kwe-liner yeviyali le-VOA kuya ekwehlulekeni kwe-QC blank
  1. Ukungcola kwe-Phthalate (149):
  2. Ukugcinwa kwe-Septum Solvent (77, 91, 106):
  3. Ubukhulu be-Septum obungafanele kanye nokukhipha umgogodla:0.125"

Ukuqhathanisa kwekhwalithi: Amaviyela ajwayelekile vs. Amaviyela e-CHANCEPRO Certified EPA VOA

Ipharamitha
Amaviyela ajwayelekile / anezindleko eziphansi angu-40 mL
Amaviyela e-CHANCEPRO Certified Pre-Cleaned EPA VOA
Izinga lokuhlanza
Ukuhlanza okuyisisekelo / okungaqinisekisiwe
I-EPA Protocol B (ukugezwa nge-asidi, ukugezwa nge-DI, ukubhaka nge-400°C)
Ukucaciswa Kwe-Septum
i-silicone yezohwebo engu-0.060" – 0.090"
I-0.125" (3.18 mm) ye-High-Resilience Medical Grade PTFE/Silicone
Ukunamathela kwe-Liner
Ukunamathiselwa nge-glue (ingozi ye-organic solvent)
Ukucindezelwa kwe-Bi-layer okungenayo i-Glue 100%/Sonic Fit
Ukulandelela i-VOC Background
Imvamisa iqukethe
i-BTEX/Phthalates
< Umkhawulo wokutholwa kwendlela (MDL < 0.05
)
Imibhalo
Incwadi ejwayelekile yokuthobela
I-Certificate of Analysis (CoA) ye-GC-MS & TOC eqondene neqoqo
Indawo yokupakisha
Ibhokisi elijwayelekile le-warehouse
Iphakethe le-Cleanroom elivalwe nge-vacuum le-Class 10,000

Izinqubo ezi-4 zokuvimbela imiphumela engamanga emaqoqweni e-Trace VOC

  1. Qinisekisa ama-CoA aqondene neqoqo ngaphambi kokusebenzisa:
  2. Umthetho wokuthatha isampula ongenayo i-Headspace:
  3. Sebenzisa ama-Liner ama-PTFE Amsulwa angu-0.125" (3.18 mm):
  4. Faka Ama-Blank Ahlukile Okuvakasha Nensimu:

Izixazululo ze-CHANCEPRO eziqinisekisiwe ze-EPA/VOA Sampling

Kuklanyelwe ukuhlangabezana nezidingo zokuthobela imithetho zeziphathimandla zikamasipala ezinomthamo ophezulu, amalabhorethri ezemvelo ezohwebo, kanye nezicelo zokuhlola ezemvelo:
Amaviyali e-VOA e-borosilicate angu-40 mL ahlanzwe ngaphambilini aqinisekiswe yi-CHANCEPRO, anama-septa e-PTFE/silicone kanye nesitifiketi sokuhlaziya
  • Amabhodlela e-VOA aqinisekisiwe angu-40 mL e-Borosilicate acwebile noma ansundu (ukuqedwa kwe-24-400):
  • Ama-Septa anzima angu-0.125" e-PTFE/Silicone:
  • Imibhalo eqondene neqoqo: ukungenelela kwangemuva okungaziro

Thintana nathi

Ukuhlanganisa Ubusha, Ukusebenzisa Izitayela.

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

Xhumana Nathi