| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a vacuum blood collecting tube made of plastic, manufactured at a low cost, causing no elution of a low molecular weight substance and transparent with excellent gas barrier property. SOLUTION: This vacuum blood collecting tube 1 made of plastic is constituted by coating the inner surface of a blood collecting tube body 10 with a thin film 20 of silicon dioxide, containing 0.1%-40% carbon atom in the thin film of silicon dioxide, and setting the thickness of the thin film to 10 nm-100 nm.</p> |
