阅读难度：

A mobile phone can now detect whether leftovers in your fridge are safe to eat or should be discarded, the Daily Mail reported.

Researchers at the University of California, Los Angeles, have developed a device that attaches to mobile handsets that can detect small amounts of E. coli in liquid samples.

The device consists of glass capillary tubes with LED lights on either end. It is able to selectively detect low concentrations of E. coli, bacteria which can cause severe food borne disease, in water samples and milk.

The findings have been published in the Royal Society of Chemistry journal Analyst.

（点击《每日邮报》查看原文）

剩饭该不该吃？问手机

       据英国《每日邮报》报道，冰箱里的剩饭该继续吃，还是扔掉，手机一测便知。

       美国加州大学洛杉矶分校的研究人员研制出一种设备，与手机连接后，能在液态样本中检测出微量大肠杆菌是否存在。

       它由两端装有LED灯的玻璃细管组成，如果牛奶及液态样本中具有少量大肠杆菌，便会作出反应。大肠杆菌一些菌株食用后，可能引发严重疾病。

       这一发现已发表在英国皇家化学协会的杂志《分析学家》上。

(China.org.cn March 12, 2012)