Fingerprint Test on Chemical Compounds指纹测试化学成分的化合物
Are you a fan of CSI?你的粉丝CSI是谁？ Are you intrigued by the sophisticated and technologically advanced devices which help David Caruso and his team to nail the criminals?是你推出的先进的和技术上先进的设备，帮助大卫卡鲁索和他的团队钉罪犯？ The latest fingerprint test has helped give medical examiners and law enforcement officers a boost.最新的指纹测试，帮助提供医疗检验员和执法人员的刺激。 While fingerprints have long been used to identify criminals, scientists have now taken the technology a step further.而指纹早已被用来识别罪犯，科学家们现在所采取的技术更进一步。 The latest fingerprint test, desorption electospray ionization (Desi), discovered by R Graham Cooks, a professor of chemistry at Purdue University, and his colleagues, can detect what the fingers have handled such as drugs, explosives or poisons.最新的指纹测试， electospray解吸电离（设计） ，发现由R格雷厄姆厨师，教授化学普度大学，和他的同事们，可以侦测到什么手指处理，例如毒品，炸药或毒药。 With just a tiny bit of electrically charged liquid sprayed on the fingerprint, scientists can detect compounds from the fingerprint molecules with a mass spectrometer.只要有一部小小的一点带电液体喷上的指纹，科学家可以检测到化合物的分子指纹与质谱。
The technology is not only applicable for identifying the compounds found on fingerprints, it actually reveals the evidence of the compound - arsenic or cocaine - in the shape of a person’s fingerprint.该技术不仅适用于确定化合物的发现对指纹，它实际上揭示了证据，该化合物-砷或可卡因-在形状，一个人的指纹。 The technology therefore provides damning evidence to incriminate criminals.因此，该技术提供了严厉的证据，令犯罪分子。 Fingerprints were tested from different surfaces including plastic, wood, paper and glass.指纹图谱进行了测试，从不同的表面包括塑料，木材，纸张和玻璃。 Even smudged fingerprints or many sets of overlapping prints were successfully isolated using this technique.甚至smudged指纹或多套重叠的版画被成功分离使用此技术。
Prosolia Inc., a small company in Indianapolis, has licensed the Desi technology from Purdue and is already selling such analyzers as add-ons to large laboratory mass spectrometers, which cost several hundred thousand dollars each. prosolia公司，一家小公司在印第安纳波利斯，已授权设计技术从普渡大学，并且已经出售这种分析仪作为加载项大型实验室质谱，成本数十万美元。 The price is too expensive for many crime laboratories although smaller, cheaper and portable versions are expected to be commercially available soon.价格过于昂贵，许多犯罪实验室，虽然规模较小，更便宜的和便携式的版本预计会在商业上可用的尽快。 The Desi technology is being used in crime investigation scenes although its original purpose is to detect cancer cells in the medical field.该设计技术，正被用来在调查罪案的场面，虽然其原来的目的是为了检测肿瘤细胞在医疗方面。
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