可參考以下資訊
1.Kit4Cat Hydrophobic Sand for Cat Urine Sample Collection
http://www.kit4cat.com
2.Petconfirm
https://www.amazon.com/PetConfirm-Nonabsorbent-Litter-Urine-Collection/dp/B00I2YTTNA
3.Catrine Cat Urine Collection Kit
https://www.amazon.co.uk/Catrine-Cat-Urine-Collection-Kit/dp/B004FGF0OG/ref=cm_cr_arp_d_product_top?ie=UTF8