Dongosolo Loyesera la LADP-1A la CW NMR - Chithunzi Chodziwika cha Model Yotsogola

Dongosolo Loyesera la LADP-1A la CW NMR - Mtundu Wotsogola

Kufotokozera Kwachidule:

Kusinthasintha kwa maginito a nyukiliya (NMR) ndi mtundu wa kusintha kwa maginito komwe kumachitika chifukwa cha mafunde amagetsi m'munda wamaginito wokhazikika. Kuyambira pomwe maphunzirowa adachitika mu 1946, njira ndi njira za maginito a nyukiliya (NMR) zapangidwa mwachangu komanso kugwiritsidwa ntchito kwambiri chifukwa zimatha kulowa mkati mwa chinthucho popanda kuwononga chitsanzocho, ndipo zimakhala ndi ubwino wachangu, kulondola komanso kulimba kwambiri. Masiku ano, zalowa kuchokera ku fizikisi kupita ku chemistry, biology, geology, chithandizo chamankhwala, zipangizo ndi zina, zomwe zimagwira ntchito yayikulu pakufufuza ndi kupanga sayansi.

Tumizani imelo kwa ife

Tsatanetsatane wa Zamalonda

Ma tag a Zamalonda

Kufotokozera

Gawo losankha: Chiyeso cha pafupipafupi, oscilloscope yodzikonzera yokha

Dongosolo loyesera la maginito a nyukiliya osalekeza (CW-NMR) lili ndi maginito okhala ndi homogeneity yayikulu komanso makina akuluakulu. Maginito okhazikika amagwiritsidwa ntchito kupereka mphamvu yayikulu ya maginito yomwe imayendetsedwa ndi mphamvu yamagetsi yosinthika, yopangidwa ndi ma coil awiri, kuti alole kusintha pang'ono kwa mphamvu yonse ya maginito ndikubwezera kusinthasintha kwa mphamvu ya maginito komwe kumachitika chifukwa cha kusintha kwa kutentha.

Popeza mphamvu yamagetsi yochepa yokha ndiyo imafunika pa mphamvu yamagetsi yochepa, vuto la kutentha kwa dongosololi limachepetsedwa. Motero, dongosololi likhoza kugwiritsidwa ntchito mosalekeza kwa maola angapo. Ndi chida chabwino kwambiri choyesera ma laboratories apamwamba a fizikisi.

Kuyesera

1. Kuwona momwe ma nuclei a hydrogen amagwirira ntchito m'madzi, komanso momwe ma ayoni a paramagnetic amakhudzira mphamvu ya nyukiliya (NMR) m'madzi, ndikuyerekeza mphamvu ya ma ayoni a paramagnetic;

2. Kuyeza magawo a hydrogen nuclei ndi fluorine nuclei, monga spin magnetic ratio, Lande g factor, ndi zina zotero.

Mafotokozedwe

Kufotokozera	Kufotokozera
Chigawo choyezedwa	H ndi F
SNR	> 46 dB (H-nyuklei)
Mafupipafupi a oscillator	17 MHz mpaka 23 MHz, yosinthika mosalekeza
Malo a ndodo ya maginito	M'mimba mwake: 100 mm; mtunda: 20 mm
Kutalika kwa chizindikiro cha NMR (kuyambira pachimake mpaka pachimake)	> 2 V (H-nuclei); > 200 mV (F-nuclei)
Kugwirizana kwa mphamvu ya maginito	kuposa 8 ppm
Kusintha kwa malo amagetsi	Gauss 60
Chiwerengero cha mafunde a coda	> 15