chloroform extract

例句：

1. 1. The researchers extracted the DNA from the patient's blood sample.
   研究人员从病人的血样中提取了DNA。
2. 2.The plant extract contains essential vitamins and minerals for human health.
   这种植物提取物对人类健康至关重要，含有必需的维生素和矿物质。
3. 3. The doctor used a chloroform extract to anesthetize the patient during surgery.
   医生在手术中使用了一种氯仿提取物来麻醉病人。