Ethylenediaminetetraacetic acid (EDTA) ndi mankhwala ophera chitsulo. Chomwe chimatchedwa chelating chimatanthauza kuti chimatha kuphatikizana ndi ma ayoni ena achitsulo ndikupangitsa ma ayoni achitsulo omangiriridwa kukhala osagwira ntchito.

Pogwiritsa ntchito khalidweli la EDTA, pali mitundu iwiri ya ntchito mu zoyeserera;

Mtundu umodzi ndi kugwiritsa ntchito mobwerezabwereza, komwe kumaletsa zochitika zina mwa kusokoneza kumangirira kwa ayoni achitsulo.

Tengani ayoni: Muzochitika zina, kumangirira kwa ayoni achitsulo ndikofunikira. Timaphatikiza EDTA ndi ayoni achitsulo awa kuti tiletse izi.

Mwachitsanzo, kugawanika kwa magazi kumafuna kuti ma ayoni a calcium alowe m'magazi. Timawonjezera EDTA m'magazi kuti tichepetse ma ayoni a calcium ndi EDTA, motero tiletsa kugawanika kwa magazi. Iyi ndi mfundo ya EDTA yoletsa kugawanika kwa magazi;

Mwachitsanzo china, kukonzekera njira yothetsera calcium mu utoto wa matenda kumagwiritsanso ntchito mphamvu ya chelation ya EDTA. Tikudziwa kuti ngati minofu yokhala ndi calcium yambiri siidachotsedwa, zidzakhala zovuta kudula minofu yonse podula, choncho tiyenera kuchotsa calcium m'thupi tisanadule.

Palinso mtundu wina wa njira yopititsira patsogolo yomwe imalimbikitsa machitidwe ena mwa kusokoneza kumangirira kwa ayoni achitsulo.

Mwachitsanzo, onjezani EDTA ku yankho la trypsin kugaya chakudya. Ngati EDTA siiwonjezeredwa, trypsin imalumikizana ndi calcium ndi magnesium pamwamba pa selo kapena pamalo osungira zakudya, motero imaletsa ntchito ya trypsin.

Panthawiyi, onjezani EDTA pang'ono kuti EDTA igwirizane ndi calcium, magnesium ndi ma ion ena a divalent. Panthawiyi, pamakhala mkhalidwe wabwino woti trypsin ichitike.

Chinthu chodabwitsa kwambiri pa EDTA ndi kusungunuka kwake. Imasungunuka pang'ono m'madzi ndipo imawoneka yoyera m'madzi. Panthawiyi, onjezerani sodium hydroxide kuti musinthe pH yake. Pamene pH ikukwera, yankho limakhala lomveka bwino. Pamene pH ili pafupi ndi 8, imakhala yomveka bwino. Siiopa asidi koma alkali.

EDTA ili ndi ntchito zambiri zabwino. Zikuoneka kuti zinthu zachilengedwe ndi zamatsenga kwambiri, koma sitinazizindikire.

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