Inkqubo yoMfuniselo ye-LADP-1A ye-CW NMR – uMfuziselo oPhakamileyo oBoniswayo

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. Ekubeni ezi zifundo zaqhutywa ngo-1946, iindlela kunye nobuchule be-nuclear magnetic resonance (NMR) ziye zaphuhliswa ngokukhawuleza kwaye zisetyenziswa ngokubanzi ngenxa yokuba zinokungena nzulu kwizinto ngaphandle kokutshabalalisa isampuli, kwaye zineenzuzo zokukhawuleza, ukuchaneka kunye nesisombululo esiphezulu. Kule mihla, bangene ukusuka kwifiziksi ukuya kwi-chemistry, biology, geology, unyango, izixhobo kunye nolunye uqeqesho, badlala indima enkulu kuphando lwesayensi 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, eveliswa ngambini yeekhoyili, ukuvumela uhlengahlengiso olulungileyo kwithambeka lemagnethi kunye nokuhlawula ukuguquguquka kwemagnethi okubangelwa kukutshintsha kweqondo lobushushu.

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 (incochoyi 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