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Ukukhetha phakathi kwe-HPLC kunye ne-UHPLC kunokuchaphazela kakhulu ukusebenza kunye nokusebenza kakuhle kwelabhoratri yakho. Esi sikhokelo sichaza iiyantlukwano eziphambili, iingenelo, kunye nokusetyenziswa okufanelekileyo kwendlela nganye - kunye neengcebiso zeengcali malunga nokukhethwa kokusetyenziswa ukugcina ukusebenza okuphezulu kohlalutyo kunye neemveliso ze-chromatography ze-Aijiren.

Unyango lwangaphambili lwesampulu ye-HPLC linyathelo elibalulekileyo elimisela ukuchaneka kunye nokuthembeka kohlalutyo lwechromatographic. Esi sikhokelo sika-Aijiren sichaza isigaba ngasinye-ukusuka kwi-filtration kunye nokukhutshwa kwi-derivatization-ukunceda iilebhu zifezekise iisampulu ezicocekileyo, iincopho ezibukhali, kunye nexesha elide lokuphila kwesixhobo.

Izifundo zozinzo zivavanya ukuba amayeza, iimolekyuli ezincinci zokusingqongileyo, kunye nezisombululo zesinyithi-ion ziziphatha njani phantsi koxinzelelo olufana nobushushu obuphezulu, umkhenkce, kunye nokuvezwa kokukhanya. Esi sikhokelo sivavanya ngokucwangcisiweyo iindlela ezifana ne-oxidation, i-hydrolysis, i-isomerization, ukukhutshwa kwekristale yomkhenkce, kunye nokuguqulwa kwefoto, kunye nokuphonononga iindlela zokulinganisa-kubandakanya i-DSC, i-UV-Vis, i-DLS, kunye ne-HPLC-MS-ibonelela ngesakhelo esomeleleyo sokuyila iiprothokholi zovavanyo olukhawulezileyo kuzo zonke izinto eziphambili zoxinzelelo lokusingqongileyo.

Izihluzi zesirinji ziyimfuneko ekusetyenzisweni kwisampulu ye-organic-phase ye-HPLC, iikholamu ezikhuselayo kunye nee-detectors kwii-particle kunye nongcoliseko. Esi sikhokelo sithelekisa iimpawu ze-PTFE, iNylon, i-PVDF, kunye ne-PC membrane filters-ixoxa ngokuhambelana kwe-solvent, amazinga okuhamba, i-protein binding, i-extractables kunye namatyala okusetyenziswa kakuhle-ukunceda iilebhu zikhethe i-membrane efanelekileyo kakhulu yokuhlaziywa komsebenzi othembekileyo kunye nokuveliswa kwakhona.

Kwi-ultra-trace analytical workflows, ilahleko ye-adsorption kumphezulu we-vial-ngenxa yeendawo ze-silanol kunye nokungcola kwesinyithi-kunokuphazamisa kakhulu ubungakanani. Esi sikhokelo sichaza iindlela ze-adsorption, ukuthelekisa ukucima, i-silanization, i-PEG, kunye ne-PFDCS iindlela zokugubungela, kwaye igxininisa idatha yokusebenza-kuquka ukubuyiswa> I-90-99% ye-analytes ye-polar kwii-vials eziphathwayo-ukunceda iilebhu zikhetha unyango oluchanekileyo lwe-vial surface ukwenzela ukuchaneka okuphuculweyo kunye nokuphindaphinda.

Eli nqaku liphonononga ukusetyenziswa kwe-EPA-certified 8-60mL ye-VOA yesampula yeebhotile ezenziwe ngeglasi ephezulu ye-TypeI ye-borosilicate yeglasi ye-volatile organic compound (VOC) isampuli kuhlalutyo lokusingqongileyo. Izihloko ziquka iiprothokholi ezisemgangathweni zokuqokelela intsimi (ezifana neNdlela ye-5035), ukugcinwa kwesampulu efanelekileyo, ukuthutha kunye neenkqubo zokugcina, iziphumo zempahla yesikhongozelo kwisampulu uzinzo, kunye nokuthotyelwa komgaqo-konke kujoliswe ekuqinisekiseni ukulandeleka, ukunyanzeliswa kokusebenza kokungcola ukwenzela ukubeka iliso elithembekileyo kokusingqongileyo.

I-mass spectrometry yindlela yohlalutyo enamandla enovakalelo oluphezulu kunye neenkcukacha ezithile, idlala indima ephambili kuphuhliso lwamachiza, uhlalutyo lwendalo, kunye nokubeka iliso kokusingqongileyo. Eli nqaku liphonononga imigaqo yalo esisiseko, izinto ezintsha zetekhnoloji zakutsha nje, kunye nosetyenziso oluguqukileyo, libonelela ngombono obanzi we-mass spectrometry.

Eli nqaku lixoxa ngomba wokunxaxha kohlalutyo olubangelwa kukungaphumeleli kokutywinwa kwiisampulu ze-VOC ngexesha lovavanyo, lihlalutya imingcele ye-screw-cap vials yendabuko, kwaye iphakamisa izisombululo zokuphucula ezifana ne-PTFE / i-silicone composite gaskets kunye ne-torque-controlled cappers ukuphucula ukuchaneka kohlalutyo.

I-20mL ye-scintillation vials ibalulekile kuvavanyo lwe-radioactive kuwo wonke amayeza enyukliya, izifundo ze-pharmacokinetic, kunye nokuhlolwa kokusingqongileyo. Eli nqaku lichaza iimeko ezi-8 eziphambili zesicelo, kunye nokuthelekiswa kwezinto eziphathekayo kunye nezilumkiso zokusebenza, ukunceda iilabhoratri zokwandisa ukhuseleko kunye nokuchaneka kohlalutyo.

Indawo yokuvula eyona colorimeter yesixhobo sokwetyisa kwimarike yenziwa kwi-16mm, kwaye ukunyamezela kwebhotile yeglasi yetyhubhu ubukhulu becala yi ±0.2mm, ngoko ke...

I-High-Performance Liquid Chromatography (HPLC) bubuchule bohlalutyo olubalulekileyo olusetyenziswa ngokubanzi kwiilabhoratri zokwahlula, ukuchonga, kunye nokulinganisa i-compon...

Uvavanyo lomgangatho wamanzi e-COD luyinxalenye ebalulekileyo yokubeka iliso kokusingqongileyo, kwaye umgangatho we-digestion colorimetric test tubes uhambelana ngqo ne-accu ...

Funda indlela yokuthintela amaqamza omoya kwizihluzi zesirinji ngeendlela ezi-6 zobuchwephesha. Fumana iingcebiso zeengcali kwi-vertical degassing kunye ne-Methanol pre-wetting ukuphelisa amaqamza amancinci, khusela iikholamu ze-HPLC ezibizayo kwii-spikes zoxinzelelo, kwaye uqinisekise iziphumo ezichanekileyo ezisisiseko kuhlalutyo lwe-LC-MS\/MS.

Iityhubhu zokwetyisa ziyinxalenye ebalulekileyo kwizicwangciso zelebhu, ngakumbi kwiinkqubo ezibandakanya ukucolwa kwe-microwave okanye iinkqubo zokugaywa kwebhloko. Le mibhobho i...

Ukuphinda usebenzise iityhubhu zovavanyo lwe-COD ngokuqinisekileyo kuya kuba nemingcipheko yokhuseleko. Wonke umntu unemikhwa yokusebenza eyahlukeneyo, kwaye impembelelo yokusetyenziswa kwakhona kwityhubhu nayo yahlukile. Njengoko r...

Iingqayi zoBuyiselo zizonke, ezikwabizwa ngokuba ziiVials zoBuyiselo eziPhakamileyo okanye iiVials ezincinci, ziyilelwe ngokukhethekileyo izikhongozeli zesampulu ezenzelwe ukunciphisa i-carryover kunye nokwandisa sam...