I-Alumina(A/B/N)Ikholomu yokukhishwa kwesigaba esiqinile se-Alumina/ikholomu ye-SPE

I-Alumina iyi-asidi ye-lewis ejwayelekile, Isikhungo se-athomu ye-aluminium asinawo ama-electron amabili.Ine-adsorbent ye-polar enamandla, efana ne-silicone, Kunamazinga amathathu aphezulu omsebenzi we-acidity, i-alkalinity nokungathathi hlangothi;I-Alumina iphinde ibe nomthelela okhethekile kuma-electron wama-hydrocarbons anephunga elimnandi, Ingcono kune-silicone esesimweni esiphezulu se-pH.Izindlela zokugcinwa eziyinhloko yi-lewis acid/base action, polarity kanye nokushintshisana kwe-ion.

I-alumina ene-asidiIzici ze-lewis acid ze-alumina-A (pH=4.5) zathuthukiswa, Lolu hlobo lwe-adsorbent lunokugcinwa okungcono kwezinhlanganisela zama-electron acebile.Ngaphezu kwalokho, lapho ukwelashwa kusengaphambili ngesisombululo esine-acidic, i-adsorbent inezinto ze-cationic ezibuthakathaka, indawo engaphezulu kungenzeka kakhulu igcine izinto ezingathathi hlangothi nezishajwa kabi (njenge-electroneutral noma i-acidic anion), Ayikwazi ukugcina ukushaja okuhle.Impahla yokushintshisana ye-ion ebuthaka futhi kwenza kube lula ukugcina izinto zokushaja ezimbi.

I-alumina eyisisekeloIngaphezulu le-Alumina-B(pH=10) likhethwa ukuthi ligcine izinto ezihlanganisiwe eziphozithivu noma ze-hydrogen.I-Aluminium oxide ephathwa ngesisombululo se-alkaline inezakhiwo ze-anionic kanye nomsebenzi wokushintshanisa we-cationic.Ngaphezu kwalokho, nakuba indawo engaphezulu inezici zesisekelo se-lewis, ingagcinwa isampula ye-electron, njengezinhlanganisela ze-amine ezingathathi hlangothi.Ikhono liphansi kakhulu ku-alumina engathathi hlangothi ne-acidic.Ngaphezu kwalokho, isibopho esiqinile se-hydrogen singatholakala ku-alumina-b, ngakho-ke umphumela wesampula ye-polar cationic nawo uyabonakala.

I-alumina engathathi hlangothiI-Alumina-N(pH=7.5) iphinde ibe yi-adsorbent ye-polar enamandla.Ngaphansi kwesimo se-pH ephezulu, i-alumina izinzile kunaleyo yeqembu elisebenzayo elingaboshiwe.Izinhlayiya ezicolekile ziqinisekisa ukusebenza kahle kokukhipha, ngakho-ke umbhede omncane we-cylindrical (50mg) uwumkhiqizo osetshenziswa kakhulu.I-adsorbent ayithathi hlangothi ngogesi futhi ijwayele ukugcina izinhlanganisela ze-elekthronikhi ezinothile njengama-amine anuka kamnandi.Ngesikhathi esifanayo, kukhona futhi amandla okugcina izinhlanganisela eziqukethe amaqembu e-electronegative afana nama-athomu aqukethe umoya-mpilo, i-phosphorus nesulfure.I-Alumina-N ingasetshenziselwa ukukhipha kanye nokuhlukanisa izinto ezipholile noma ezingezona e-polar kumasampuli ancibilikayo emanzini nangenawo amanzi.

Izinzuzo zomkhiqizo:

★ Izinga lomkhiqizo lizinzile, likwazi ukukhiqiza kabusha, layisha ukuchezuka okujwayelekile okuhlobene (RSD) <5%.

★ Ukupakisha kuhlanzekile futhi akukho ukuphazamiseka okungemuva okungenalutho.

★ Izinga lokutakula liphezulu, futhi izinga lokutakula lokwengeza isampula 10~100ppm liwububanzi obungcono kakhulu obungu-95%~105%.

★ Ukusebenza kwezindleko zomkhiqizo kuphakathi kwemikhiqizo engcono kakhulu emhlabeni.

Ububanzi bohlelo lokusebenza:

★ Umhlabathi;Amafutha;Uketshezi lomzimba (i-plasma/umchamo njll.);Ukudla;Izidakamizwa njll.

Uhlelo lokusebenza olujwayelekile:

★ Uphethiloli, zokwenziwa uwoyela eluhlaza distillates, zokwenziwa organic compounds.(N）

★ I-Sudan ebomvu, i-malachite eluhlaza, amavithamini, ama-antibiotics, amafutha anephunga elimnandi, ama-enzyme, ama-glycosides nama-hormone, njll.(N）

★ Ukuhlukaniswa kwama-radioactive compounds, amajeneretha e-isotope.(A,B）

★ I phospholipids, steroids, catecholamine.(B）

★ Ukudla / okuphakelayo izithasiselo.(A,N）

★ Izibulala-zinambuzane, imithi yokubulala ukhula, ukuhlukaniswa kwezinto ezingcolile.(N,B）

★ Ama-adsorbent e-non-polar organic, ukuhlukaniswa kwamafutha kanye ne-lipid

★ Izinhlanganisela eziphilayo zokwenziwa ziyahlukaniswa.

★ Imikhiqizo yemvelo, izingulube zezitshalo.

★ Japanese JPMHLW indlela esemthethweni: pesticide ekudleni.

★ AOAC kanye EPA izindlela.

Ukuzibophezela kwekhwalithi:

★ Siqinisekisa ukuthi wonke umkhiqizo ufanelekile, sisebenzisa indinganiso yokulawula ikhwalithi eqinile futhi sihlola zonke iziqephu.

★ Qinisekisa ukuthi yonke imikhiqizo ayinakho ukuphazamiseka okungenalutho, futhi izinga lokutholwa kwesampula liphakeme kunelombuso, lifinyelela izinga eliphezulu kakhulu lohlobo olufanayo lwemikhiqizo.

Ukuzibophezela kwesevisi:

★ Sinikeza usizo lochwepheshe lobuchwepheshe mahhala.

Oda Ulwazi