Re: [問題] 關於檢驗血液的存在

看板CSI作者 (歡迎五子俘戰)時間17年前 (2007/03/27 23:10), 編輯推噓0(000)
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※ 引述《tonyshi (xxxx)》之銘言: : 關於CSI中 每次都會先用棉花棒沾不明東西 : 然後滴ㄧ種液體,若是血液的話就會有粉紅色或是紅色的產生 : 那種液體 應該是酚太(那個字打不出來)吧 : 可是酚太不是碰到鹼性就會變紅色嗎 : 那樣的話 碰到的不是血液 也變紅色 那怎麼辦 : 謝謝 Phenolphthalein is used to perform a presumptive blood test, and is commonly known as the Kastle-Meyer test. A dry sample is collected with a swab or filter paper. First a few drops of alcohol, then a few drops of phenolphthalein and finally a few drops of hydrogen peroxide are dripped onto the sample. If the sample turns pink then it is a positive test. This test is nondestructive to the sample; it can be kept and used in further tests at the lab. This test has the same reaction with blood from any animal, so further testing would be required to determine whether it originates from a human. reference: wiki -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 163.20.93.25
文章代碼(AID): #162JFq-1 (CSI)
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文章代碼(AID): #162JFq-1 (CSI)