Inkqubo yoMfuniselo ye-LADP-1A ye-CW NMR – iModeli yoMfuziselo oPhambili oBonelekileyo

Inkqubo yoMfuniselo ye-LADP-1A ye-CW NMR – iModeli ePhezulu

Inkcazelo emfutshane:

I-Nuclear magnetic resonance (NMR) luhlobo lwesenzeko senguqu yeresonance ebangelwa ngamaza ombane kwindawo engaguqukiyo.Ukusukela oko ezi zifundo zaqhutywa ngo-1946, iindlela kunye nobuchule be-nuclear magnetic resonance (NMR) ziye zaphuhliswa ngokukhawuleza kwaye zisetyenziswa ngokubanzi kuba zinokungena nzulu kwizinto ngaphandle kokutshabalalisa isampulu, kwaye zineenzuzo zokukhawuleza, ukuchaneka kunye nokuphakama okuphezulu. isisombululo.Kule mihla, baye bangena kwi-physics ukuya kwi-chemistry, biology, geology, unyango, izixhobo kunye nolunye uqeqesho, badlala indima enkulu kuphando lwezenzululwazi kunye nemveliso.

Thumela i-imeyile kuthi

Iinkcukacha zeMveliso

Iithegi zeMveliso

Inkcazo

Inxalenye yokuzikhethela:Imitha yokuphindaphinda, icandelo elizilungiseleleyo nge-oscilloscope

Le nkqubo yovavanyo ye-continuous-wave nuclear magnetic resonance (CW-NMR) iqulathe imagnethi ephezulu yehomogeneity kunye neyunithi yomatshini engundoqo.Umazibuthe osisigxina usetyenziselwa ukubonelela ngommandla wemagnethi ophambili obekwe ngaphezulu yintsimi ye-electromagnetic ehlengahlengiswayo, eveliswe ngambini yeekhoyili, ukuvumela uhlengahlengiso olulungileyo kumhlaba opheleleyo wemagnethi kunye nokubuyisa ukuguquguquka kwemagnethi okubangelwa kukutshintsha kobushushu.

Ngenxa yokuba kuphela imagnethi encinci yangoku ifunekayo kwintsimi ye-electromagnetic ephantsi, ingxaki yokufudumeza kwenkqubo iyancitshiswa.Ngaloo ndlela, inkqubo inokusebenza ngokuqhubekayo iiyure eziliqela.Sisixhobo esifanelekileyo sovavanyo kwiilabhoratri zefiziksi ephucukileyo.

Zama

1. Ukuqwalasela i-nuclear magnetic resonance (NMR) isenzeko se-hydrogen nuclei emanzini kunye nokuthelekisa impembelelo yeeyoni zeparamagnetic;

2. Ukulinganisa iiparamitha ze-hydrogen nuclei kunye ne-fluorine nuclei, njenge-spin magnetic ratio, i-Lande g factor, njl.

Iinkcukacha

Inkcazo	Inkcazo
I-nucleus elinganisiweyo	H kunye noF
SNR	> 46 dB (H-nuclei)
I-oscillator frequency	17 MHz ukuya 23 MHz, ngokuqhubekayo adjustable
Indawo yepoleni yemagnethi	Ububanzi: 100 mm;isithuba: 20 mm
I-amplitude yomqondiso we-NMR (incopho ukuya kwincopho)	> 2 V (H-nuclei);> 200 mV (F-nuclei)
I-Homogeneity yentsimi yemagneti	ngcono kuno 8ppm
Uluhlu lohlengahlengiso lwentsimi ye-electromagnetic	60 Gauss
Inani lamaza ecoda	> 15