Ethylenediaminetetraacetic acid (EDTA) bụ ihe na-eme ka ígwè chelating dị n'ime ya. Ihe a na-akpọ chelating pụtara na ọ nwere ike ijikọ ya na ụfọdụ ion ígwè ma mee ka ion ígwè ndị a jikọtara ọnụ ghara ịrụ ọrụ.

Site na iji njirimara EDTA a, enwere ụdị ojiji abụọ na nnwale;

Otu ụdị bụ ngwa ntụgharị, nke na-egbochi ụfọdụ mmeghachi omume site na igbochi njikọ nke ion ígwè.

Were ion: N'ụfọdụ mmeghachi omume, njikọta nke ion ígwè dị mkpa. Anyị na-ejikọta EDTA na ion ígwè ndị a iji gbochie mmeghachi omume a.

Dịka ọmụmaatụ, njikọta ọbara chọrọ ka calcium ion sonye. Anyị na-etinye EDTA n'ọbara iji chepụta calcium ion na EDTA, si otú a na-egbochi coagulation ọbara. Nke a bụ ụkpụrụ nke EDTA anticoagulation;

Maka ihe atụ ọzọ, nkwadebe nke ngwọta decalcification na ntụpọ ọrịa na-ejikwa mmetụta chelation nke EDTA. Anyị maara na ọ bụrụ na anụ ahụ nwere calcium dị elu anaghị ewepụ calcium, ọ ga-esiri ike ịkpụ ya ka ọ bụrụ anụ ahụ zuru oke mgbe a na-egbu ya, yabụ anyị kwesịrị iwepụ calcium tupu anyị egbu ya.

E nwekwara ụdị ngwa n'ihu nke na-akwalite mmeghachi omume ụfọdụ site na igbochi njikọ nke ion ígwè.

Dịka ọmụmaatụ, tinye EDTA na mmiri ọgwụ trypsin. Ọ bụrụ na etinyeghị EDTA, trypsin ga-ejikọ na calcium na magnesium n'elu sel ma ọ bụ n'ime usoro omenala, si otú a na-egbochi ọrụ trypsin.

N'oge a, tinye ntakịrị EDTA iji kwe ka EDTA jikọta ya na calcium efu, magnesium na ion ndị ọzọ dị iche iche. N'oge a, e nwere ezigbo ọnọdụ maka trypsin.

Ihe kacha dị ịtụnanya gbasara EDTA bụ ike ya ịgbaze. Ọ na-agbaze ntakịrị na mmiri ma na-acha ọcha na mmiri. Ugbu a, tinye sodium hydroxide iji gbanwee uru pH ya. Ka pH na-arị elu ma na-arị elu, ngwọta ya na-aghọ Ọ na-edo anya ma doo anya. Mgbe pH dị nso na 8, ọ na-apụta ìhè kpamkpam. Ọ naghị atụ egwu acid kama alkali.

EDTA nwere ọtụtụ uru dị egwu. A pụrụ ịhụ na ihe ndị dị n'okike dị oke egwu, mana anyị ahụbeghị ya.

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