Xa usebenzisa iityhubhu zovavanyo ze-COD, sihlala siyilondoloze isampulu ukuba ihlolwe kwi-tube yovavanyo kwaye inyibilike ityhubhu ngamandla ukumisa yonke i-sediment. Susa i-cap yetyhubhu yovavanyo lwe-COD kwaye udibanise i-2 ml yesampulu usebenzisa umbhobho.
Uluhlu oluphezulu, i-vials ye-computer ye-Codeges, i-CoD Diections, indawo ephezulu yeoksijini (i-COD): I-US ECEBISOYIWEYO: I-150 \ / iqulethe i-mercury.
