Isitholi sikawoyela se-UV sisebenzisa i-n-hexane njenge-ejenti yokukhipha futhi sithobelana nezidingo zezinga elisha likazwelonke elithi “HJ970-2018 Determination of Water Quality Petroleum by Ultraviolet Spectrophotometry”.
isimiso sokusebenza
Ngaphansi kwesimo se-pH ≤ 2, izinto zikawoyela kusampula zikhishwa nge-n-hexane. I-extract iphelelwa amanzi yi-anhydrous sodium sulfate, bese ikhangiswa nge-magnesium silicate ukuze isuse izinto ezipholile ezifana namafutha ezilwane nemifino. Ukumuncwa kukalwa endaweni ye-ultraviolet. I-Petroleum Okuqukethwe kukawoyela kanye nevelu yokumunca kuyahambisana nomthetho ka-Lambert-Beer, ngaleyo ndlela kucutshungulwa inani likawoyela emanzini.
Ububanzi besicelo
Ifanele ukunqunywa kwe-petroleum emanzini angaphezulu, emanzini angaphansi komhlaba namanzi olwandle. Isetshenziswa kakhulu ezinhlelweni zokuqapha imvelo, imboni ye-petrochemical, amakolishi namanyuvesi, izikhungo zocwaningo lwesayensi, izikhungo zokuhlanza indle, ukongiwa kwamanzi kanye ne-hydrology, izitshalo zamanzi, amakhemikhali e-petrochemicals, ukwenza amaphepha, ukwenza imithi, insimbi, ukuqapha kwezemvelo kwezolimo nezinye izimboni.
Umehluko
Ububanzi bokusebenza bendlela ye-UV kanye nendlela ye-infrared zihlukile. Indlela ye-infrared inomkhawulo ophezulu wokubona futhi ifanele ukunqunywa kwamafutha (i-petroleum, amafutha ezilwane kanye nemifino) emanzini endle. Indlela ye-UV inokuzwela okuphezulu kanye nomkhawulo wokutholwa ophansi futhi ifanele amanzi angaphezulu namanzi angaphansi komhlaba. kanye nokunqunywa kwe-petroleum emanzini olwandle.
Indlela ye-infrared: Indlela ye-infrared inokuzwela okuphezulu, imiphumela enembile yekhwalithi kanye nenani, futhi isebenzisa i-tetrachlorethylene njenge-ejenti yokukhipha esikhundleni se-carbon tetrachloride ecekela phansi ungqimba lwe-ozone.
Indlela ye-Ultraviolet: Indlela ye-ultraviolet inokuzwela okuphezulu futhi ifanele ukunqunywa kwe-petroleum emanzini angaphezulu, emanzini angaphansi komhlaba namanzi olwandle. Izinga libeka phambili ukuqinisekiswa kwekhwalithi okucacile nezidingo zokulawula ikhwalithi, ezingaqinisekisa isayensi nokunemba kwedatha yokuqapha ngesikhathi sokusetshenziswa kwendlela.
I-LH-OIL336, umtshina kawoyela we-UV owenziwe ngokuzimela yi-Lianhua, uhambisana nezindlela nezimiso zakamuva zokutholwa, usebenzisa i-n-hexane njenge-ejenti yokukhipha, futhi ifanele ukunqunywa kwe-petroleum emanzini angaphezulu, emanzini angaphansi komhlaba namanzi olwandle.
Imitha kawoyela ye-Lianhua LH-OIL336 UV ilula ukuyisebenzisa, inokunemba okuhle, ukuzwela okuphezulu nokusebenza okuzinzile. Ingakwazi ukuhlangabezana nezidingo ezihlukahlukene zohlelo lokusebenza zamakhasimende futhi yonge isikhathi samakhasimende ekuhlolweni kwekhwalithi yamanzi. Ibanga lokulinganisa eliqondile lale nsimbi yokulinganisa uwoyela yi-0.04-1ppmm. Inesikrini sokuthinta esingu-7 intshi esiphezulu, isebenzisa i-20mm quartz cuvette ukuze ikale umbala, futhi inephrinta eyakhelwe ngaphakathi ekwazi ukugcina izingcezu zedatha ezingu-5,000. Inezinga eliphezulu lokuzenzakalela, ilula futhi iyashesha, futhi isebenzisa i-n-hexane njengoba i-ejenti yokukhipha ibuye ihambisane nemvelo futhi iphephile. Iphinde ibe nokusebenza kwenqubo evamile, izindleko eziphansi zokuhlola, ukulwa nokuphazamiseka okuqinile, isivinini sokuhlola okusheshayo, futhi ithuthukisa ukusebenza kahle komsebenzi wokuhlola izinga lamanzi.
Isikhathi sokuthumela: Apr-12-2024
