Qhov sib ntxiv ntawm txhua qhov sib xyaw rau kev daws teeb meem cuam tshuam rau nws cov isotonicity, ua rau muaj kev hloov pauv hauv osmotic siab ntawm kev daws. Nws yuav tsum tsis txhob cuam tshuam los ntawm cov tshuaj nkaus xwb tab sis kuj los ntawm cov khoom tsis sib xws ntxiv hauv cov qauv. Yog li ntawd, nws yog qhov tsim nyog txhawm rau ntxiv Nacl txhawm rau nqa cov tshuaj rau isotonicity.
Txoj kev kho isotonicity yog dab tsi?
Txoj Kev Ua Kom Tsis Txaus Siab: Lub lachrymal secretion muaj ob peb lub ntsiab lus hauv nws thiab muaj qhov khov ntawm -0.52 ° C. Tag nrho cov kev daws teeb meem, uas khov ntawm -0.52 ° C, yuav yog isotonic nrog cov kua lachrymal.
Nws yog siv los ua isotonicity adjusting agent?
Ntau txoj hauv kev tau siv los kho isotonicity ntawm cov tshuaj daws teeb meem. Ib txoj kev siv dav tshaj plaws yog txoj kev sib npaug sodium chloride. Qhov sib npaug NaCl (E) yog tus nqi ntawm NaCl uas muaj cov nyhuv osmotic tib yam (raws li tus lej ntawm cov khoom) raws li 1 gm ntawm cov tshuaj.
Tus neeg saib xyuas tonicity yog dab tsi?
Rau kev nplij siab thaum tswj hwm, ntau hom tshuaj yuav tsum yog "isotonic" nrog lub cev kua. … USP 29-NF 24 teev tsib cov khoom ntxiv uas tau muab cais ua "tonicity" cov neeg ua haujlwm, suav nrog dextrose(1,2), glycerin(1, 3), mannitol(1, 4),chloride(1,5) thiab sodium chloride(1 , 6).
Koj daws qhov kev daws teeb meem isotonic li cas?
Xiav rau kev npaj cov tshuaj isotonic:
ua kom muaj nuj nqis ntawm txhua yam tshuaj hauv daim ntawv tshuaj los ntawm nws cov sodium chloride sib npaug E, thiab rho tawm tus nqi no los ntawm qhov concentration ntawm sodium chloride uas yog isotonic nrog lub cev kua (0.9 gm ib 100 ml).
