Sample ajiya Vials, wanda kuma aka sani da kwalaben ajiya na sunadarai, ko kwalayen kayan kwalliya, sun dace da ajiya na dogon lokaci da kawowa na dogon lokaci, yana da kyakkyawar aikin kwalliya. Tsarin samarwa na babban-wasan kwaikwayon Organ (toc) ana kiyaye kwalaben samfurin carbon (toc) mai tsabta don tabbatar da cewa ba su ba da gudummawa ga kowane gurɓatar ƙwayar cuta zuwa samfurin. Wannan yana da mahimmanci musamman a cikin binciken TOC, inda har ma da matakan gurɓatar ruwa na iya shafar sakamako.
