Ite ọ bụla nwere:

• 8 oz (237 mil) nke nhicha ọcha (acidified thiourea solution)
• 1 x ngwugwu nkata

ntụziaka:

1. Kwupu isi ya nke ọma ka ịzere itisa.
2. Weghachite ngwa nkata site na nnukwu ma kpuchie iberibe ị chọrọ ihicha n’elu.
3. Wedata ngwongwo nkata n'ime ihe ngwọta, na-eme ka ọlaọcha ọlaọcha juputara na nhicha.
4. Chere 10-20 sekọnd, dabere n’otú e si etinyere ọla / mebiri emebi.
5. Welie nkata ahụ ma kwe ka ihe nhicha dị ọcha na-agbapụta azụ n'ime ite ahụ.
6. Jiri mmiri sachaa ọla ọcha ndị ahụ.

Ịdọ aka ná ntị

• Acidified thiourea bụ nke na-emebi emebi ma mebie ọla a hapụrụ n'ime ogologo oge.
• Acidified thiourea bụ carcinogen mara.

* Ntụziaka ndị ọzọ gụnyere na ite ahụ.